Mediterranean Sea

Short description: Sea between Europe, Africa and Asia

Mediterranean Sea

Map of the Mediterranean Sea

Location|

* Southern Europe
* North Africa
* Western Asia

Coordinates|  [ ⚑ ] : 35°N 18°E﻿ / ﻿35°N 18°E﻿ / 35; 18
Type| Sea
rivers, streams, precipitation">Primary inflows| Atlantic Ocean, Sea of Marmara, Nile, Ebro, Rhône, Chelif, Po
Basin countries|

Coastal countries:

* Albania
* Algeria
* Bosnia and Herzegovina
* Croatia
* Cyprus
* Egypt
* France
* Greece
* Israel
* Italy
* Lebanon
* Libya
* Malta
* Monaco
* Montenegro
* Morocco
* Northern Cyprus (recognized only by Turkey, see Cyprus dispute)
* Palestine
* Slovenia
* Spain
* Syria
* Tunisia
* Turkey
* United Kingdom (Akrotiri and Dhekelia and Gibraltar)
* For other countries, see §Hydrography

Surface area| 2,500,000 km2 (970,000 sq mi)
Average depth| 1,500 m (4,900 ft)
Max. depth| 5,109 m (16,762 ft) ±1 m (3 ft)
Water volume| 3,750,000 km3 (900,000 cu mi)
Residence time| 80–100 years[1]
Max. temperature| 28 °C (82 °F)
Min. temperature| 12 °C (54 °F)
Islands| 3300+
Settlements|

* Alexandria
* Barcelona
* Algiers
* Izmir
* Rome
* Tel Aviv-Yafo
* Athens
* Valencia
* Antalya
* Beirut
* Mersin
* Marseille
* Tripoli
* Muğla
* (full list)

The Mediterranean Sea (/ˌmɛdɪtəˈreɪniən/ MED-ih-tə-RAY-nee-ən) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant in Western Asia. The Mediterranean has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago.

The Mediterranean Sea covers an area of about 2,500,000 km2 (970,000 sq mi),[2] representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only 14 km (9 mi) wide. The Mediterranean Sea encompasses a vast number of islands, some of them of volcanic origin. The two largest islands, in both area and population, are Sicily and Sardinia.

The Mediterranean Sea has an average depth of 1,500 m (4,900 ft) and the deepest recorded point is 5,109 m (16,762 ft) ±1 m (3 ft) in the Calypso Deep in the Ionian Sea. It lies between latitudes 30° and 46° N and longitudes 6° W and 36° E. Its west–east length, from the Strait of Gibraltar to the Gulf of Alexandretta, on the southeastern coast of Turkey, is about 4,000 kilometres (2,500 mi). The north–south length varies greatly between different shorelines and whether only straight routes are considered. Also including longitudinal changes, the shortest shipping route between the multinational Gulf of Trieste and the Libyan coastline of the Gulf of Sidra is about 1,900 kilometres (1,200 mi). The water temperatures are mild in winter and warm in summer and give name to the Mediterranean climate type due to the majority of precipitation falling in the cooler months. Its southern and eastern coastlines are lined with hot deserts not far inland, but the immediate coastline on all sides of the Mediterranean tends to have strong maritime moderation.

The sea was an important route for merchants and travellers of ancient times, facilitating trade and cultural exchange between the peoples of the region. The history of the Mediterranean region is crucial to understanding the origins and development of many modern societies. The Roman Empire maintained nautical hegemony over the sea for centuries and is the only state to have ever controlled all of its coast.

The countries surrounding the Mediterranean in clockwise order are Spain , France , Monaco, Italy, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Albania, Greece, Turkey, Syria, Lebanon, Israel, Palestine, Egypt, Libya, Tunisia, Algeria, and Morocco; Malta and Cyprus are island countries in the sea. In addition, Gibraltar and Ceuta, have coastlines on the sea. The drainage basin encompasses a large number of other countries, the Nile being the longest river ending in the Mediterranean Sea.[3]

## Contents

* 1 Names and etymology
* 2 History
* 2.1 Ancient civilizations
* 2.2 Middle Ages and empires
* 2.3 21st century and migrations
* 3 Geography
* 3.1 Marginal seas
* 3.2 Extent
* 3.3 Hydrography
* 3.4 Coastal countries
* 3.5 Exclusive economic zone
* 3.6 Coastline length
* 3.7 Coastal cities
* 3.8 Subdivisions
* 3.8.1 Other seas
* 3.8.2 Other features
* 3.9 Largest islands
* 3.10 Climate
* 3.10.1 Sea temperature
* 4 Oceanography
* 4.1 General circulation
* 4.2 Other events affecting water circulation
* 4.3 Climate change
* 5 Biogeochemistry
* 6 Geology
* 6.1 Tectonics and paleoenvironmental analysis
* 6.1.1 Messinian salinity crisis
* 6.1.2 Desiccation and exchanges of flora and fauna
* 6.1.3 Shift to a "Mediterranean climate"
* 7 Paleoclimate
* 8 Biodiversity
* 9 Environmental issues
* 9.1 Natural hazards
* 9.2 Invasive species
* 9.2.1 Arrival of new tropical Atlantic species
* 9.3 Sea-level rise
* 9.4 Pollution
* 9.5 Shipping
* 9.6 Tourism
* 9.7 Overfishing
* 9.8 Marine heatwaves
* 10 Gallery
* 11 See also
* 12 Notes
* 13 References
* 14 External links

## Names and etymology

Wadj-Ur, or Wadj-Wer, ancient Egyptian name of the Mediterranean Sea With its highly indented coastline and large number of islands, Greece has the longest Mediterranean coastline.

The Ancient Egyptians called the Mediterranean Wadj-wr/Wadj-Wer/Wadj-Ur. This term (literally “great green”) was the name given by the Ancient Egyptians to the semi-solid, semi-aquatic region characterized by papyrus forests to the north of the cultivated Nile delta, and, by extension, the sea beyond.[4]

The Ancient Greece called the Mediterranean simply ἡ θάλασσα (hē thálassa; "the Sea") or sometimes ἡ μεγάλη θάλασσα (hē megálē thálassa; "the Great Sea"), ἡ ἡμετέρα θάλασσα (hē hēmetérā thálassa; "Our Sea"), or ἡ θάλασσα ἡ καθ'ἡμᾶς (hē thálassa hē kath’hēmâs; "the sea around us").

The Romans called it Mare Magnum ("Great Sea") or Mare Internum ("Internal Sea") and, starting with the Roman Empire, Mare Nostrum ("Our Sea"). The term Mare Mediterrāneum appears later: Solinus apparently used this in the 3rd century, but the earliest extant witness to it is in the 6th century, in Isidore of Seville.[5][6] It means 'in the middle of land, inland' in Latin, a compound of medius ("middle"), terra ("land, earth"), and -āneus ("having the nature of").

The Latin word is a calque of Greek μεσόγειος (mesógeios; "inland"), from μέσος (mésos, "in the middle") and γήινος (gḗinos, "of the earth"), from γῆ (gê, "land, earth"). The original meaning may have been 'the sea in the middle of the earth', rather than 'the sea enclosed by land'.[7][8]

Ancient Iranians called it the "Roman Sea", and in Classical Persian texts, it was called Daryāy-e Rōm (دریای روم), which may be from Middle Persian form, Zrēh ī Hrōm (𐭦𐭫𐭩𐭤 𐭩 𐭤𐭫𐭥𐭬).[9]

The Carthaginians called it the "Syrian Sea". In ancient Syrian texts, Phoenician epics and in the Hebrew Bible, it was primarily known as the "Great Sea", הים הגדול HaYam HaGadol, (Numbers; Book of Joshua; Ezekiel) or simply as "The Sea" (1 Kings). However, it has also been called the "Hinder Sea" because of its location on the west coast of Greater Syria or the Holy Land (and therefore behind a person facing the east), which is sometimes translated as "Western Sea". Another name was the "Sea of the Philistines", (Book of Exodus), from the people inhabiting a large portion of its shores near the Israelites. In Modern Hebrew, it is called הים התיכון HaYam HaTikhon 'the Middle Sea'.[10] In Classic Persian texts was called Daryāy-e Šām (دریای شام) "The Western Sea" or "Syrian Sea".[11]

In Modern Standard Arabic, it is known as al-Baḥr [al-Abyaḍ] al-Mutawassiṭ (البحر [الأبيض] المتوسط) 'the [White] Middle Sea'. In Islamic and older Arabic literature, it was Baḥr al-Rūm(ī) (بحر الروم or بحر الرومي) 'the Sea of the Romans' or 'the Roman Sea'. At first, that name referred only to the eastern Mediterranean, but the term was later extended to the whole Mediterranean. Other Arabic names were Baḥr al-šām(ī) (بحر الشام) ("the Sea of Syria") and Baḥr al-Maghrib (بحرالمغرب) ("the Sea of the West").[12][6]

In Turkish, it is the Akdeniz 'the White Sea'; in Ottoman, ﺁق دكيز, which sometimes means only the Aegean Sea.[13] The origin of the name is not clear, as it is not known in earlier Greek, Byzantine or Islamic sources. It may be to contrast with the Black Sea.[12][10][14] In Persian, the name was translated as Baḥr-i Safīd, which was also used in later Ottoman Turkish.[12]

According to Johann Knobloch, in classical antiquity, cultures in the Levant used colours to refer to the cardinal points: black referred to the north (explaining the name Black Sea), yellow or blue to east, red to south (e.g., the Red Sea) and white to west. That would explain the Bulgarian Byalo More, the Turkish Akdeniz, and the Arab nomenclature described above, lit. "White Sea".[15]

## History

### Ancient civilizations

Greek (red) and Phoenician (yellow) colonies in antiquity c. the 6th century BC

The Roman Empire at its farthest extent in AD 117

Major ancient civilizations were located around the Mediterranean. The sea provided routes for trade, colonization, and war, as well as food (from fishing and the gathering of other seafood) for numerous communities throughout the ages.[16] The earliest advanced civilizations in the Mediterranean were the Egyptians and the Minoans, who traded extensively with each other. Other notable civilizations that appeared somewhat later are the Hittites and other Anatolian peoples, the Phoenicians, and Mycenean Greece. Around 1200 BC the eastern Mediterranean was greatly affected by the Bronze Age Collapse, which resulted in the destruction of many cities and trade routes.

The most notable Mediterranean civilizations in classical antiquity were the Ancient Greece city states and the Phoenicians, both of which extensively colonized the coastlines of the Mediterranean.

Darius I of Persia, who conquered Ancient Egypt, built a canal linking the Red Sea to the Nile, and thus the Mediterranean. Darius's canal was wide enough for two triremes to pass each other with oars extended and required four days to traverse.[17]

Following the Punic Wars in the 3rd and 2nd centuries BC, the Roman Republic defeated the Carthaginians to become the preeminent power in the Mediterranean. When Augustus founded the Roman Empire, the Romans referred to the Mediterranean as Mare Nostrum ("Our Sea"). For the next 400 years, the Roman Empire completely controlled the Mediterranean Sea and virtually all its coastal regions from Gibraltar to the Levant, being the only state in history to ever do so, being given the nickname "Roman Lake".

### Middle Ages and empires

The Western Roman Empire collapsed around 476 AD. The east was again dominant as Roman power lived on in the Byzantine Empire formed in the 4th century from the eastern half of the Roman Empire. Though the Eastern Roman Empire would continue to hold almost all of the Mediterranean, another power arose in the 7th century, and with it the religion of Islam, which soon swept across from the east; at its greatest extent, the Arabs, under the Umayyads, controlled most of the Mediterranean region and left a lasting footprint on its eastern and southern shores.

The Arab invasions disrupted the trade relations between Western and Eastern Europe while disrupting trade routes with Eastern Asian Empires. This, however, had the indirect effect of promoting trade across the Caspian Sea. The export of grains from Egypt was re-routed towards the Eastern world. Products from East Asian empires, like silk and spices, were carried from Egypt to ports like Venice and Constantinople by sailors and Jewish merchants. The Viking raids further disrupted the trade in western Europe and brought it to a halt. However, the Norsemen developed the trade from Norway to the White Sea, while also trading in luxury goods from Spain and the Mediterranean. The Byzantines in the mid-8th century retook control of the area around the north-eastern part of the Mediterranean. Venetian ships from the 9th century armed themselves to counter the harassment by Arabs while concentrating trade of Asian goods in Venice.[18]

The Battle of Lepanto, 1571, ended in victory for the European Holy League against the Ottoman Turks.

The Fatimids maintained trade relations with the Italian city-states like Amalfi and Genoa before the Crusades, according to the Cairo Geniza documents. A document dated 996 mentions Amalfian merchants living in Cairo. Another letter states that the Genoese had traded with Alexandria. The caliph al-Mustansir had allowed Amalfian merchants to reside in Jerusalem about 1060 in place of the Latin hospice.[19]

The Crusades led to the flourishing of trade between Europe and the outremer region.[20] Genoa, Venice and Pisa created colonies in regions controlled by the Crusaders and came to control the trade with the Orient. These colonies also allowed them to trade with the Eastern world. Though the fall of the Crusader states and attempts at banning of trade relations with Muslim states by the Popes temporarily disrupted the trade with the Orient, it however continued.[21]

Europe started to revive, however, as more organized and centralized states began to form in the later Middle Ages after the Renaissance of the 12th century.

File:De Engels-Nederlandse vloot in de Baai van Algiers ter ondersteuning van het ultimatum tot vrijlating van blanke slaven, 26 augustus 1816. Rijksmuseum SK-A-1377.jpegThe bombardment of Algiers by the Anglo-Dutch fleet in support of an ultimatum to release European slaves, August 1816

Ottoman power based in Anatolia continued to grow, and in 1453 extinguished the Byzantine Empire with the Conquest of Constantinople. Ottomans gained control of much of the eastern part sea in the 16th century and also maintained naval bases in southern France (1543–1544), Algeria and Tunisia. Barbarossa, the Ottoman captain is a symbol of this domination with the victory of the Battle of Preveza (1538). The Battle of Djerba (1560) marked the apex of Ottoman naval domination in the eastern Mediterranean. As the naval prowess of the European powers increased, they confronted Ottoman expansion in the region when the Battle of Lepanto (1571) checked the power of the Ottoman Navy. This was the last naval battle to be fought primarily between galleys.

The Barbary pirates of Northwest Africa preyed on Christian shipping and coastlines in the Western Mediterranean Sea.[22] According to Robert Davis, from the 16th to 19th centuries, pirates captured 1 million to 1.25 million Europeans as slaves.[23]

The development of oceanic shipping began to affect the entire Mediterranean. Once, most of the trade between Western Europe and the East was passing through the region, but after the 1490s the development of a sea route to the Indian Ocean allowed the importation of Asian spices and other goods through the Atlantic ports of western Europe.[24][25][26]

The sea remained strategically important. British mastery of Gibraltar ensured their influence in Africa and Southwest Asia. Especially after the naval battles of Abukir (1799, Battle of the Nile) and Trafalgar (1805), the British had for a long time strengthened their dominance in the Mediterranean.[27] Wars included Naval warfare in the Mediterranean during World War I and Mediterranean theatre of World War II.

With the opening of the lockless Suez Canal in 1869, the flow of trade between Europe and Asia changed fundamentally. The fastest route now led through the Mediterranean towards East Africa and Asia. This led to a preference for the Mediterranean countries and their ports like Trieste with direct connections to Central and Eastern Europe experienced a rapid economic rise. In the 20th century, the 1st and 2nd World Wars as well as the Suez Crisis and the Cold War led to a shift of trade routes to the European northern ports, which changed again towards the southern ports through European integration, the activation of the Silk Road and free world trade.[28]

### 21st century and migrations

Further information: European migrant crisis, List of migrant vessel incidents on the Mediterranean Sea, and Timeline of the European migrant crisis

Satellite image of the Mediterranean Sea at night

In 2013, the Maltese president described the Mediterranean Sea as a "cemetery" due to the large number of migrants who drowned there after their boats capsized.[29] European Parliament president Martin Schulz said in 2014 that Europe's migration policy "turned the Mediterranean into a graveyard", referring to the number of drowned refugees in the region as a direct result of the policies.[30] An Azerbaijani official described the sea as "a burial ground ... where people die".[31]

Following the 2013 Lampedusa migrant shipwreck, the Italian government decided to strengthen the national system for the patrolling of the Mediterranean Sea by authorising "Operation Mare Nostrum", a military and humanitarian mission in order to rescue the migrants and arrest the traffickers of immigrants. In 2015, more than one million migrants crossed the Mediterranean Sea into Europe.[32]

Italy was particularly affected by the European migrant crisis. Since 2013, over 700,000 migrants have landed in Italy,[33] mainly sub-Saharan Africans.[34]

## Geography

File:STS059-238-074 Strait of Gibraltar.jpg

A satellite image showing the Mediterranean Sea. The Strait of Gibraltar appears in the bottom left (north-west) quarter of the image; to its left is the Iberian Peninsula in Europe, and to its right, the Maghreb in Africa.

The Dardanelles strait in Turkey. The north (upper) side forms part of Europe (the Gelibolu Peninsula in the Thrace region); on the south (lower) side is Anatolia in Asia.

The Mediterranean Sea connects:

* to the Atlantic Ocean by the Strait of Gibraltar (known in Homer's writings as the "Pillars of Hercules") in the west
* to the Sea of Marmara and the Black Sea, by the Straits of the Dardanelles and the Bosporus respectively, in the east

The 163 km (101 mi) long artificial Suez Canal in the southeast connects the Mediterranean Sea to the Red Sea without ship lock, because the water level is essentially the same.[10][35]

The westernmost point of the Mediterranean is located at the transition from the Alborán Sea to the Strait of Gibraltar, the easternmost point is on the coast of the Gulf of Iskenderun in southeastern Turkey. The northernmost point of the Mediterranean is on the coast of the Gulf of Trieste near Monfalcone in northern Italy while the southernmost point is on the coast of the Gulf of Sidra near the Libyan town of El Agheila.

Large islands in the Mediterranean include:

* Cyprus, Crete, Euboea, Rhodes, Lesbos, Chios, Kefalonia, Corfu, Limnos, Samos, Naxos, and Andros in the Eastern Mediterranean
* Sicily, Cres, Krk, Brač, Hvar, Pag, Korčula, and Malta in the central Mediterranean
* Sardinia, Corsica, and the Balearic Islands: Ibiza, Majorca, and Menorca in the Western Mediterranean

The Alpine arc, which also has a great meteorological impact on the Mediterranean area, touches the Mediterranean in the west in the area around Nice.

The typical Mediterranean climate has hot, dry summers and mild, rainy winters. Crops of the region include olives, grapes, oranges, tangerines, carobs and cork.

### Marginal seas

Error creating thumbnail: Unable to save thumbnail to destinationThe Elaphiti Islands off the coast of Croatia; the Adriatic Sea contains over 1200 islands and islets. Error creating thumbnail: Unable to save thumbnail to destinationEs Malvins, Balearic Sea Error creating thumbnail: Unable to save thumbnail to destinationThe Ionian Sea, view from the island Lefkada, Greece

The Mediterranean Sea includes 15 marginal seas:[36][failed verification]

Number  | Sea  | Area (km2)  | Marginal countries and territories

|
|
|

1 | Libyan Sea | 350,000 | Libya, Turkey, Greece, Malta, Italy
2 | Levantine Sea | 320,000 | Turkey, Syria, Lebanon, Israel, Palestine, Egypt, Greece, Cyprus, Akrotiri & Dhekelia
3 | Tyrrhenian Sea | 275,000 | Italy, France
4 | Aegean Sea | 214,000 | Greece, Turkey
5 | Icarian Sea | (Part of Aegean) | Greece
6 | Myrtoan Sea | (Part of Aegean) | Greece
7 | Thracian Sea | (Part of Aegean) | Greece, Turkey
8 | Ionian Sea | 169,000 | Greece, Albania, Italy
9 | Balearic Sea | 150,000 | Spain
10 | Adriatic Sea | 138,000 | Albania, Bosnia and Herzegovina, Croatia, Italy, Montenegro, Slovenia
11 | Sea of Sardinia | 120,000 | Italy, Spain
12 | Sea of Crete | 95,000 | Greece[37]
13 | Ligurian Sea | 80,000 | Italy, France
14 | Alboran Sea | 53,000 | Spain , Morocco, Algeria, Gibraltar
15 | Sea of Marmara | 11,500 | Turkey
– | Other | ~500,000 | Consists of gulfs, straits, channels and other parts that do not have the name of a specific sea.
Total | Mediterranean Sea | ~2,500,000 |

* List of seas

Note 1: The International Hydrographic Organization defines the area as generic Mediterranean Sea, in the Western Basin. It does not recognize the label Sea of Sardinia.[38]

Note 2: Thracian Sea and Myrtoan Sea are seas that are part of the Aegean Sea.

Note 3: The Black Sea is not considered part of it.

### Extent

Borders of the Mediterranean Sea

The International Hydrographic Organization defines the limits of the Mediterranean Sea as follows:[38] Stretching from the Strait of Gibraltar in the west to the entrances to the Dardanelles and the Suez Canal in the east, the Mediterranean Sea is bounded by the coasts of Europe, Africa, and Asia and is divided into two deep basins:

* Western Basin:
* On the west: A line joining the extremities of Cape Trafalgar (Spain) and Cape Spartel (Africa)
* On the northeast: The west coast of Italy. In the Strait of Messina, a line joining the north extreme of Cape Paci (15°42′E) with Cape Peloro, the east extreme of the Island of Sicily. The north coast of Sicily
* On the east: A line joining Cape Lilibeo the western point of Sicily ( [ ⚑ ] 37°47′N 12°22′E﻿ / ﻿37.783°N 12.367°E﻿ / 37.783; 12.367), through the Adventure Bank to Cape Bon (Tunisia)
* Eastern Basin:
* On the west: The northeastern and eastern limits of the Western Basin
* On the northeast: A line joining Kum Kale (26°11′E) and Cape Helles, the western entrance to the Dardanelles
* On the southeast: The entrance to the Suez Canal
* On the east: The coasts of Lebanon, Syria, and Israel

### Hydrography

Approximate extent of the Mediterranean drainage basin (dark green). Nile basin only partially shown

The drainage basin of the Mediterranean Sea is particularly heterogeneous and extends much further than the Mediterranean region.[39] Its size has been estimated between 4,000,000 km2 (1,500,000 sq mi) and 5,500,000 km2 (2,100,000 sq mi),[note 1] depending on whether non-active parts (deserts) are included or not.[40][41][42] The longest river ending in the Mediterranean Sea is the Nile, which takes its sources in equatorial Africa. The basin of the Nile constitutes about two-thirds of the Mediterranean drainage basin[41] and encompasses areas as high as the Ruwenzori Mountains.[43] Among other important rivers in Africa, are the Moulouya and the Chelif, both on the north side of the Atlas Mountains. In Asia, are the Ceyhan and Seyhan, both on the south side of the Taurus Mountains.[44] In Europe, the largest basins are those of the Rhône, Ebro, Po, and Maritsa.[45] The basin of the Rhône is the largest and extends up as far north as the Jura Mountains, encompassing areas even on the north side of the Alps.[46] The basins of the Ebro, Po, and Maritsa, are respectively south of the Pyrenees, Alps, and Balkan Mountains, which are the major ranges bordering Southern Europe.

Total annual precipitation is significantly higher on the European part of the Mediterranean basin, especially near the Alps (the 'water tower of Europe') and other high mountain ranges. As a consequence, the river discharges of the Rhône and Po are similar to that of the Nile, despite the latter having a much larger basin.[44] These are the only three rivers with an average discharge of over 1,000 m3/s (35,000 cu ft/s).[41] Among large natural fresh bodies of water are Lake Victoria (Nile basin), Lake Geneva (Rhône), and the Italian Lakes (Po). While the Mediterranean watershed is bordered by other river basins in Europe, it is essentially bordered by endorheic basins or deserts elsewhere.

The following countries are in the Mediterranean drainage basin while not having a coastline on the Mediterranean Sea:

* In Europe, through various rivers:[45] Andorra,[note 2] Bulgaria,[note 3] Kosovo,[note 4] North Macedonia,[note 5] San Marino,[note 6] Serbia,[note 7] and Switzerland .[note 8]
* In Africa, through the Nile:[48] Congo, Burundi, Eritrea, Ethiopia, Kenya, Rwanda, South Sudan, Sudan, Tanzania and Uganda.

### Coastal countries

File:Area of the Mediterranean.jpgMap of the Mediterranean Sea from open Natural Earth data, 2020

The following countries have a coastline on the Mediterranean Sea:

* Northern shore (from west to east): Spain , France , Monaco, Italy, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Albania, Greece, Turkey.
* Eastern shore (from north to south): Turkey, Syria, Lebanon, Israel, Palestine, Egypt.
* Southern shore (from west to east): Morocco, Algeria, Tunisia, Libya, Egypt.
* Island nations: Malta, Cyprus.

Several other territories also border the Mediterranean Sea (from west to east):

* the British overseas territory of Gibraltar
* the Spanish autonomous cities of Ceuta and Melilla and nearby islands
* the Sovereign Base Areas on Cyprus
* the Palestinian Gaza Strip

Alexandria, the largest city on the Mediterranean File:Barcelona skyline.jpgBarcelona, the second largest metropolitan area on the Mediterranean Sea (after Alexandria) and the headquarters of the Union for the Mediterranean The Acropolis of Athens with the Mediterranean Sea in the background The ancient port of Jaffa (now in Tel Aviv-Yafo), from which the biblical Jonah set sail before being swallowed by a whale[49] Catania, Sicily, Italy, with Mount Etna in the background İzmir, the third metropolis of Turkey (after Istanbul and Ankara)

### Exclusive economic zone

Exclusive economic zones in Mediterranean Sea:[50][51]

Number  | Country  | Area (Km2)

|
|

1 |  Italy | 541,915
2 |  Greece | 493,708
3 |  Libya | 355,604
4 |  Spain | 260,000
5 |  Egypt | 169,125
6 |  Algeria | 128,843
7 |  Tunisia | 102,047
8 |  Cyprus | 98,088
9 |  France | 88,389
10 |  Turkey | 72,195
11 |  Croatia | 59,032
12 |  Malta | 55,542
13 |  Israel | 25,139
14 |  Lebanon | 19,265
15 |  Morocco | 18,302
16 |  Albania | 13,691
17 | File:Flag of Syria (2025-).svg Syria | 10,189
18 |  Montenegro | 7,745
19 | Template:PLE | 2,591
20 |  Monaco | 288
21 |  Slovenia | 220
22 |  Bosnia and Herzegovina | 50
23 |  United Kingdom | 6.8
Total  | Mediterranean Sea | 2,500,000

### Coastline length

The Coastline length is about 46,000 km.[52][53][54]

### Coastal cities

Major cities (municipalities), with populations larger than 200,000 people, bordering the Mediterranean Sea include:

* Algeria: Algiers, Annaba, Oran
* Egypt: Alexandria, Damietta, Port Said
* France: Marseille, Toulon, Nice
* Greece: Athens, Thessaloniki, Patras, Heraklion
* Israel: Ashdod, Haifa, Netanya, Rishon LeZion, Tel Aviv
* Italy: Bari, Catania, Genoa, Messina, Naples, Palermo, Rome, Taranto, Trieste, Venice
* Lebanon: Beirut, Tripoli
* Libya: Benghazi, Misrata, Tripoli, Zawiya, Zliten
* Malta: Valletta
* Morocco: Tétouan, Tangier
* Palestine: Gaza City
* Spain: Alicante, Almería, Badalona, Barcelona, Cartagena, Málaga, Palma de Mallorca, Valencia.
* Syria: Latakia, Tartus
* Tunisia: Sfax, Sousse, Tunis
* Turkey: Alanya, Antalya, Çanakkale, İskenderun, İzmir, Mersin

### Subdivisions

Africa (left, on horizon) and Europe (right), as seen from Gibraltar

The International Hydrographic Organization (IHO) divides the Mediterranean into a number of smaller waterbodies, each with their own designation (from west to east):[38]

* the Strait of Gibraltar
* the Alboran Sea, between Spain and Morocco
* the Balearic Sea, between mainland Spain and its Balearic Islands
* the Ligurian Sea between Corsica and Liguria (Italy)
* the Tyrrhenian Sea enclosed by Sardinia, Corsica, Italian peninsula and Sicily
* the Ionian Sea between Italy, Albania and Greece
* the Adriatic Sea between Italy, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro and Albania
* the Aegean Sea between Greece and Turkey

#### Other seas

Positano, Italy, Tyrrhenian Sea

Some other seas whose names have been in common use from the ancient times, or in the present:

* the Sea of Sardinia, between Sardinia and Balearic Islands, as a part of the Balearic Sea
* the Sea of Sicily between Sicily and Tunisia
* the Libyan Sea between Libya and Crete
* In the Aegean Sea,
* the Thracian Sea in its north
* the Myrtoan Sea between the Cyclades and the Peloponnese
* the Sea of Crete north of Crete
* the Icarian Sea between Kos and Chios
* the Cilician Sea between Turkey and Cyprus
* the Levantine Sea at the eastern end of the Mediterranean

Many of these smaller seas feature in local myth and folklore and derive their names from such associations.

#### Other features

File:Bey-Sannine-BCD.jpgView of the Saint George Bay, and snow-capped Mount Sannine from a tower in the Beirut Central District The Port of Marseille seen from L'Estaque Sarandë, Albania, stands on an open-sea gulf of the Ionian sea in the central Mediterranean. Serra de Tramuntana, Mallorca

In addition to the seas, a number of gulfs and straits are recognised:

* the Saint George Bay in Beirut, Lebanon
* the Ras Ibn Hani cape in Latakia, Syria
* the Ras al-Bassit cape in northern Syria.
* the Minet el-Beida ("White Harbour") bay near ancient Ugarit, Syria
* the Strait of Gibraltar, connects the Atlantic Ocean to the Mediterranean Sea and separates Spain from Morocco
* the Bay of Algeciras, at the southern end of the Iberian Peninsula
* the Gulf of Corinth, an enclosed sea between the Ionian Sea and the Corinth Canal
* the Pagasetic Gulf, the gulf of Volos, south of the Thermaic Gulf, formed by the Mount Pelion peninsula
* the Saronic Gulf, the gulf of Athens, between the Corinth Canal and the Mirtoan Sea
* the Thermaic Gulf, the gulf of Thessaloniki, located in the northern Greek region of Macedonia
* the Kvarner Gulf, Croatia
* the Gulf of Almeria, southeast of Spain
* the Gulf of Lion, south of France
* the Gulf of Valencia, east of Spain
* the Strait of Messina, between Sicily and Calabrian peninsula
* the Gulf of Genoa, northwestern Italy
* the Gulf of Venice, northeastern Italy
* the Gulf of Trieste, northeastern Italy
* the Gulf of Taranto, southern Italy
* the Gulf of Saint Euphemia, southern Italy, with the international airport nearby
* the Gulf of Salerno, southwestern Italy
* the Gulf of Gaeta, southwestern Italy
* the Gulf of Squillace, southern Italy
* the Strait of Otranto, between Italy and Albania
* the Gulf of Haifa, northern Israel
* the Gulf of Sidra, between Tripolitania (western Libya) and Cyrenaica (eastern Libya)
* the Strait of Sicily, between Sicily and Tunisia
* the Corsica Channel, between Corsica and Italy
* the Strait of Bonifacio, between Sardinia and Corsica
* the Gulf of Antalya, between west and east shores of Antalya (Turkey)
* the Gulf of İskenderun, between İskenderun and Adana (Turkey)
* the Gulf of İzmir, in İzmir (Turkey)
* the Gulf of Fethiye, in Fethiye (Turkey)
* the Gulf of Kuşadası, in İzmir (Turkey)
* the Bay of Kotor, in south-western Montenegro and south-eastern Croatia
* the Malta Channel, between Sicily and Malta
* the Gozo Channel, between Malta Island and Gozo

### Largest islands

The two biggest islands of the Mediterranean: Sicily and Sardinia (Italy) Medieval watchtower on the coast of Sardinia

The Mediterranean Sea encompasses about 10,000 islands and islets, of which about 250 are permanently inhabited.[55] In the table below are listed the ten largest by size.

Country  | Island  | Area in km2 | Population

|
|
|

Italy  | Sicily | 25,460  | 5,048,995
Italy  | Sardinia  | 23,821  | 1,672,804
Cyprus  | Cyprus | 9,251  | 1,088,503
France  | Corsica | 8,680  | 299,209
Greece  | Crete  | 8,336  | 623,666
Greece  | Euboea  | 3,655  | 218,000
Spain  | Majorca  | 3,640  | 869,067
Greece  | Lesbos  | 1,632  | 90,643
Greece  | Rhodes  | 1,400  | 117,007
Greece  | Chios  | 842  | 51,936

### Climate

Much of the Mediterranean coast enjoys a hot-summer Mediterranean climate. However, most of its southeastern coast has a hot desert climate, and much of Spain's eastern (Mediterranean) coast has a cold semi-arid climate, while most of Italy's northern (Adriatic) coast has a humid subtropical climate. Although they are rare, tropical cyclones occasionally form in the Mediterranean Sea, typically in September–November.

Map of climate zones in the areas surrounding the Mediterranean Sea, according to the Köppen climate classification

#### Sea temperature

Mean sea temperature (°C)  | Jan  | Feb  | Mar  | Apr  | May  | Jun  | Jul  | Aug  | Sep  | Oct  | Nov  | Dec  | Year

|
|
|
|
|
|
|
|
|
|
|
|
|

Málaga[56] | 16  | 15  | 16  | 16  | 18  | 20  | 22  | 23  | 22  | 20  | 18  | 17  | 18.6
Barcelona[57] | 13  | 12  | 13  | 14  | 17  | 20  | 23  | 25  | 23  | 20  | 17  | 15  | 17.8
Marseille[58] | 13  | 13  | 13  | 14  | 16  | 18  | 21  | 22  | 21  | 18  | 16  | 14  | 16.6
Naples[59] | 15  | 14  | 14  | 15  | 18  | 22  | 25  | 27  | 25  | 22  | 19  | 16  | 19.3
Malta[60] | 16  | 16  | 15  | 16  | 18  | 21  | 24  | 26  | 25  | 23  | 21  | 18  | 19.9
Venice[61] | 11  | 10  | 11  | 13  | 18  | 22  | 25  | 26  | 23  | 20  | 16  | 14  | 17.4
Athens[62] | 16  | 15  | 15  | 16  | 18  | 21  | 24  | 24  | 24  | 21  | 19  | 18  | 19.3
Heraklion[63] | 16  | 15  | 15  | 16  | 19  | 22  | 24  | 25  | 24  | 22  | 20  | 18  | 19.7
Antalya[64] | 17  | 17  | 16  | 17  | 21  | 24  | 27  | 29  | 27  | 25  | 22  | 19  | 21.8
Limassol[65] | 18  | 17  | 17  | 18  | 20  | 24  | 26  | 28  | 27  | 25  | 22  | 19  | 21.7
Mersin[66] | 18  | 17  | 17  | 18  | 21  | 25  | 28  | 29  | 28  | 25  | 22  | 19  | 22.3
Tel Aviv[67] | 18  | 17  | 17  | 18  | 21  | 24  | 27  | 28  | 28  | 26  | 23  | 20  | 22.3
Alexandria[68] | 18  | 17  | 17  | 18  | 20  | 23  | 25  | 26  | 26  | 25  | 22  | 20  | 21.4

## Oceanography

Predominant surface currents for June

Being nearly landlocked affects conditions in the Mediterranean Sea: for instance, tides are very limited as a result of the narrow connection with the Atlantic Ocean. The Mediterranean is characterised and immediately recognised by its deep blue colour.

Evaporation greatly exceeds precipitation and river runoff in the Mediterranean, a fact that is central to the water circulation within the basin.[69] Evaporation is especially high in its eastern half, causing the water level to decrease and salinity to increase eastward.[70] The average salinity in the basin is 38 PSU at 5 m depth.[71] The temperature of the water in the deepest part of the Mediterranean Sea is 13.2 °C (55.8 °F).[71]

The net water influx from the Atlantic Ocean is ca. 70,000 m3/s or 2.2×1012 m3/a (7.8×1013 cu ft/a).[72] Without this Atlantic water, the sea level of the Mediterranean Sea would fall at a rate of about 1 m per year.[73]

In oceanography, it is sometimes called the Eurafrican Mediterranean Sea, the European Mediterranean Sea or the African Mediterranean Sea to distinguish it from mediterranean seas elsewhere.[74][who else?]

### General circulation

Water circulation in the Mediterranean can be attributed to the surface waters entering from the Atlantic through the Strait of Gibraltar (and also low salinity water entering the Mediterranean from the Black Sea through the Bosphorus). The cool and relatively low-salinity Atlantic water circulates eastwards along the North African coasts. A part of the surface water does not pass the Strait of Sicily, but deviates towards Corsica before exiting the Mediterranean. The surface waters entering the eastern Mediterranean basin circulate along the Libyan and Israeli coasts. Upon reaching the Levantine Sea, the surface waters having warmed and increased its salinity from its initial Atlantic state, is now denser and sinks to form the Levantine Intermediate Waters (LIW). Most of the water found anywhere between 50 and 600 m deep in the Mediterranean originates from the LIW.[75] LIW are formed along the coasts of Turkey and circulate westwards along the Greek and South Italian coasts. LIW are the only waters passing the Sicily Strait westwards. After the Strait of Sicily, the LIW waters circulate along the Italian, French and Spanish coasts before exiting the Mediterranean through the depths of the Strait of Gibraltar. Deep water in the Mediterranean originates from three main areas: the Adriatic Sea, from which most of the deep water in the eastern Mediterranean originates, the Aegean Sea, and the Gulf of Lion. Deep water formation in the Mediterranean is triggered by strong winter convection fueled by intense cold winds like the Bora. When new deep water is formed, the older waters mix with the overlaying intermediate waters and eventually exit the Mediterranean. The residence time of water in the Mediterranean is approximately 100 years, making the Mediterranean especially sensitive to climate change.[76]

### Other events affecting water circulation

Being a semi-enclosed basin, the Mediterranean experiences transitory events that can affect the water circulation on short time scales. In the mid-1990s, the Aegean Sea became the main area for deep water formation in the eastern Mediterranean after particularly cold winter conditions. This transitory switch in the origin of deep waters in the eastern Mediterranean was termed Eastern Mediterranean Transient (EMT) and had major consequences on water circulation of the Mediterranean.[77][78][79]

Another example of a transient event affecting the Mediterranean circulation is the periodic inversion of the North Ionian Gyre, which is an anticyclonic ocean gyre observed in the northern part of the Ionian Sea, off the Greek coast. The transition from anticyclonic to cyclonic rotation of this gyre changes the origin of the waters fueling it; when the circulation is anticyclonic (most common), the waters of the gyre originate from the Adriatic Sea. When the circulation is cyclonic, the waters originate from the Levantine Sea. These waters have different physical and chemical characteristics, and the periodic inversion of the North Ionian Gyre (called Bimodal Oscillating System or BiOS) changes the Mediterranean circulation and biogeochemistry around the Adriatic and Levantine regions.[80]

### Climate change

Because of the short residence time of waters, the Mediterranean Sea is considered a hot spot for climate change effects.[81] Deep water temperatures have increased by 0.12 °C (0.22 °F) between 1959 and 1989.[82] According to climate projections, the Mediterranean Sea could become warmer. The decrease in precipitation over the region could lead to more evaporation ultimately increasing the Mediterranean Sea salinity.[81][83] Because of the changes in temperature and salinity, the Mediterranean Sea may become more stratified by the end of the 21st century, with notable consequences on water circulation and biogeochemistry. The stratification and warming have already led to the eastern Mediterranean to become a net source of CO2 to the atmosphere [84][85] notably during summer. This strong summer degassing, combined with the prolonged and pronounced stratification results in the formation of aragonite crystals abiotically in the water column.[86] The cumulative warming at the surface of the Mediterranean has a significant impact on the ecological system. Extreme warming has led to biodiversity loss[87] and presents an existential threat to some habitats [88] while making conditions more hospitable to invasive tropical species.[89]

## Biogeochemistry

In spite of its great biodiversity, concentrations of chlorophyll and nutrients in the Mediterranean Sea are very low, making it one of the most oligotrophic ocean regions in the world. The Mediterranean Sea is commonly referred to as an LNLC (Low-Nutrient, Low-Chlorophyll) area. The Mediterranean Sea fits the definition of a desert in which its nutrient contents are low, making it difficult for plants and animals to develop.

There are steep gradients in nutrient concentrations, chlorophyll concentrations and primary productivity in the Mediterranean. Nutrient concentrations in the western part of the basin are about double the concentrations in the eastern basin. The Alboran Sea, close to the Strait of Gibraltar, has a daily primary productivity of about 0.25 g C (grams of carbon) m−2 day−1 whereas the eastern basin has an average daily productivity of 0.16 g C m−2 day−1.[90] For this reason, the eastern part of the Mediterranean Sea is termed "ultraoligotrophic". The productive areas of the Mediterranean Sea are few and small. High (i.e. more than 0.5 grams of Chlorophyll a per cubic meter) productivity occurs in coastal areas, close to the river mouths which are the primary suppliers of dissolved nutrients. The Gulf of Lion has a relatively high productivity because it is an area of high vertical mixing, bringing nutrients to the surface waters that can be used by phytoplankton to produce Chlorophyll a.[91]

Primary productivity in the Mediterranean is also marked by an intense seasonal variability. In winter, the strong winds and precipitation over the basin generate vertical mixing, bringing nutrients from the deep waters to the surface, where phytoplankton can convert it into biomass.[92] However, in winter, light may be the limiting factor for primary productivity. Between March and April, spring offers the ideal trade-off between light intensity and nutrient concentrations in surface for a spring bloom to occur. In summer, high atmospheric temperatures lead to the warming of the surface waters. The resulting density difference virtually isolates the surface waters from the rest of the water column and nutrient exchanges are limited. As a consequence, primary productivity is very low between June and October.[93][91]

Oceanographic expeditions uncovered a characteristic feature of the Mediterranean Sea biogeochemistry: most of the chlorophyll production does not occur on the surface, but in sub-surface waters between 80 and 200 meters deep.[94] Another key characteristic of the Mediterranean is its high nitrogen-to-phosphorus ratio (N:P). Redfield demonstrated that most of the world's oceans have an average N:P ratio around 16. However, the Mediterranean Sea has an average N:P between 24 and 29, which translates a widespread phosphorus limitation.[clarification needed][95][96][97][98]

Because of its low productivity, plankton assemblages in the Mediterranean Sea are dominated by small organisms such as picophytoplankton and bacteria.[99][100]

## Geology

A submarine karst spring, called vrulja, near Omiš; observed through several ripplings of an otherwise calm sea surface.

The geologic history of the Mediterranean Sea is complex. Underlain by oceanic crust, the sea basin was once thought to be a tectonic remnant of the ancient Tethys Ocean; it is now known to be a structurally younger basin, called the Neotethys, which was first formed by the convergence of the African and Eurasian plates during the Late Triassic and Early Jurassic. Because it is a near-landlocked body of water in a normally dry climate, the Mediterranean is subject to intensive evaporation and the precipitation of evaporites. The Messinian salinity crisis started about six million years ago (mya) when the Mediterranean became landlocked, and then essentially dried up. There are salt deposits accumulated on the bottom of the basin of more than a million cubic kilometres—in some places more than three kilometres thick.[101][102]

Scientists estimate that the sea was last filled about 5.3 million years ago (mya) in less than two years by the Zanclean flood. Water poured in from the Atlantic Ocean through a newly breached gateway now called the Strait of Gibraltar at an estimated rate of about three orders of magnitude (one thousand times) larger than the current flow of the Amazon River.[103]

The Mediterranean Sea has an average depth of 1,500 m (4,900 ft) and the deepest recorded point is 5,267 m (17,280 ft) in the Calypso Deep in the Ionian Sea. The coastline extends for 46,000 km (29,000 mi). A shallow submarine ridge (the Strait of Sicily) between the island of Sicily and the coast of Tunisia divides the sea in two main subregions: the Western Mediterranean, with an area of about 850,000 km2 (330,000 mi2); and the Eastern Mediterranean, of about 1.65 million km2 (640,000 mi2). Coastal areas have submarine karst springs or vruljas, which discharge pressurised groundwater into the water from below the surface; the discharge water is usually fresh, and sometimes may be thermal.[104][105]

### Tectonics and paleoenvironmental analysis

The Mediterranean basin and sea system were established by the ancient African-Arabian continent colliding with the Eurasian continent. As Africa-Arabia drifted northward, it closed over the ancient Tethys Ocean which had earlier separated the two supercontinents Laurasia and Gondwana. At about that time in the middle Jurassic period (roughly 170 million years ago [dubious - discuss]) a much smaller sea basin, dubbed the Neotethys, was formed shortly before the Tethys Ocean closed at its western (Arabian) end. The broad line of collisions pushed up a very long system of mountains from the Pyrenees in Spain to the Zagros Mountains in Iran in an episode of mountain-building tectonics known as the Alpine orogeny. The Neotethys grew larger during the episodes of collisions (and associated foldings and subductions) that occurred during the Oligocene and Miocene epochs (34 to 5.33 mya); see animation: Africa-Arabia colliding with Eurasia. Accordingly, the Mediterranean basin consists of several stretched tectonic plates in subduction which are the foundation of the eastern part of the Mediterranean Sea. Various zones of subduction contain the highest oceanic ridges, east of the Ionian Sea and south of the Aegean. The Central Indian Ridge runs east of the Mediterranean Sea south-east across the in-between[clarification needed] of Africa and the Arabian Peninsula into the Indian Ocean.

#### Messinian salinity crisis

File:Etapa3muda.jpgMessinian salinity crisis before the Zanclean flood File:Crisis salina del Messiniense.ogvAnimation: Messinian salinity crisis

Main article: Earth:Messinian salinity crisis

During Mesozoic and Cenozoic times, as the northwest corner of Africa converged on Iberia, it lifted the Betic-Rif mountain belts across southern Iberia and northwest Africa. There the development of the intramontane Betic and Rif basins created two roughly parallel marine gateways between the Atlantic Ocean and the Mediterranean Sea. Dubbed the Betic and Rifian corridors, they gradually closed during the middle and late Miocene: perhaps several times.[106] In the late Miocene the closure of the Betic Corridor triggered the so-called "Messinian salinity crisis" (MSC), characterized by the deposition of a thick evaporitic sequence – with salt deposits up to 2 km thick in the Levantine sea – and by a massive drop in water level in much of the Basin. This event was for long the subject of acute scientific controversy, now much appeased,[107] regarding its sequence, geographic range, processes leading to evaporite facies and salt deposits. The start of the MSC was recently estimated astronomically at 5.96 mya, and it persisted for some 630,000 years until about 5.3 mya;[108] see Animation: Messinian salinity crisis, at right.

After the initial drawdown[clarification needed] and re-flooding, there followed more episodes—the total number is debated—of sea drawdowns and re-floodings for the duration of the MSC. It ended when the Atlantic Ocean last re-flooded the basin—creating the Strait of Gibraltar and causing the Zanclean flood—at the end of the Miocene (5.33 mya). Some research has suggested that a desiccation-flooding-desiccation cycle may have repeated several times, which could explain several events of large amounts of salt deposition.[109][110] Recent studies, however, show that repeated desiccation and re-flooding is unlikely from a geodynamic point of view.[111][112]

#### Desiccation and exchanges of flora and fauna

See also: Pleistocene megafauna and Dwarf elephant

The present-day Atlantic gateway, the Strait of Gibraltar, originated in the early Pliocene via the Zanclean Flood. As mentioned, there were two earlier gateways: the Betic Corridor across southern Spain and the Rifian Corridor across northern Morocco. The Betic closed about 6 mya, causing the Messinian salinity crisis (MSC); the Rifian or possibly both gateways closed during the earlier Tortonian times, causing a "Tortonian salinity crisis" (from 11.6 to 7.2 mya), long before the MSC and lasting much longer. Both "crises" resulted in broad connections between the mainlands of Africa and Europe, which allowed migrations of flora and fauna—especially large mammals including primates—between the two continents. The Vallesian crisis indicates a typical extinction and replacement of mammal species in Europe during Tortonian times following climatic upheaval and overland migrations of new species:[113] see Animation: Messinian salinity crisis (and mammal migrations), at right.

The almost complete enclosure of the Mediterranean basin has enabled the oceanic gateways to dominate seawater circulation and the environmental evolution of the sea and basin. Circulation patterns are also affected by several other factors—including climate, bathymetry, and water chemistry and temperature—which are interactive and can induce precipitation of evaporites. Deposits of evaporites accumulated earlier in the nearby Carpathian foredeep during the Middle Miocene, and the adjacent Red Sea Basin (during the Late Miocene), and in the whole Mediterranean basin (during the MSC and the Messinian age). Many diatomites are found underneath the evaporite deposits, suggesting a connection between their[clarification needed] formations.

Today, evaporation of surface seawater (output) is more than the supply (input) of fresh water by precipitation and coastal drainage systems, causing the salinity of the Mediterranean to be much higher than that of the Atlantic—so much so that the saltier Mediterranean waters sink below the waters incoming from the Atlantic, causing a two-layer flow across the Strait of Gibraltar: that is, an outflow submarine current of warm saline Mediterranean water, counterbalanced by an inflow surface current of less saline cold oceanic water from the Atlantic. In the 1920s, Herman Sörgel proposed the building of a hydroelectric dam (the Atlantropa project) across the Straits, using the inflow current to provide a large amount of hydroelectric energy. The underlying energy grid was also intended to support a political union between Europe and, at least, the Maghreb part of Africa (compare Eurafrika for the later impact and Desertec for a later project with some parallels in the planned grid).[114]

#### Shift to a "Mediterranean climate"

The end of the Miocene also marked a change in the climate of the Mediterranean basin. Fossil evidence from that period reveals that the larger basin had a humid subtropical climate with rainfall in the summer supporting laurel forests. The shift to a "Mediterranean climate" occurred largely within the last three million years (the late Pliocene epoch) as summer rainfall decreased. The subtropical laurel forests retreated; and even as they persisted on the islands of Macaronesia off the Atlantic coast of Iberia and North Africa, the present Mediterranean vegetation evolved, dominated by coniferous trees and sclerophyllous trees and shrubs with small, hard, waxy leaves that prevent moisture loss in the dry summers. Much of these forests and shrublands have been altered beyond recognition by thousands of years of human habitation. There are now very few relatively intact natural areas in what was once a heavily wooded region.

## Paleoclimate

Because of its latitude and its landlocked position, the Mediterranean is especially sensitive to astronomically induced climatic variations, which are well documented in its sedimentary record. Since the Mediterranean is subject to the deposition of eolian dust from the Sahara during dry periods, whereas riverine detrital input prevails during wet ones, the Mediterranean marine sapropel-bearing sequences provide high-resolution climatic information. These data have been employed in reconstructing astronomically calibrated time scales for the last 9 Ma of the Earth's history, helping to constrain the time of past geomagnetic reversals.[115] Furthermore, the exceptional accuracy of these paleoclimatic records has improved our knowledge of the Earth's orbital variations in the past.

## Biodiversity

Soft coral Eunicella cavolini

Unlike the vast multidirectional ocean currents in open oceans within their respective oceanic zones; biodiversity in the Mediterranean Sea is that of a stable one due to the subtle but strong locked nature of currents which affects favourably, even the smallest macroscopic type of volcanic life form. The stable marine ecosystem of the Mediterranean Sea and sea temperature provides a nourishing environment for life in the deep sea to flourish while assuring a balanced aquatic ecosystem excluded from any external deep oceanic factors. It is estimated that there are more than 17,000 marine species in the Mediterranean Sea with generally higher marine biodiversity in coastal areas, continental shelves, and decreases with depth.[116]

As a result of the drying of the sea during the Messinian salinity crisis,[117] the marine biota of the Mediterranean are derived primarily from the Atlantic Ocean. The North Atlantic is considerably colder and more nutrient-rich than the Mediterranean, and the marine life of the Mediterranean has had to adapt to its differing conditions in the five million years since the basin was reflooded.

The Alboran Sea is a transition zone between the two seas, containing a mix of Mediterranean and Atlantic species. The Alboran Sea has the largest population of bottlenose dolphins in the Western Mediterranean, is home to the last population of harbour porpoises in the Mediterranean and is the most important feeding grounds for loggerhead sea turtles in Europe. The Alboran Sea also hosts important commercial fisheries, including sardines and swordfish. The Mediterranean monk seals live in the Aegean Sea in Greece. In 2003, the World Wildlife Fund raised concerns about the widespread drift net fishing endangering populations of dolphins, turtles, and other marine animals such as the spiny squat lobster.

There was a resident population of orcas in the Mediterranean until the 1980s, when they went extinct, probably due to long-term PCB exposure. There are still annual sightings of orca vagrants.[118]

## Environmental issues

For 4,000 years, human activity has transformed most parts of Mediterranean Europe, and the "humanisation of the landscape" overlapped with the appearance of the present Mediterranean climate.[119] The image of a simplistic, environmental determinist notion of a Mediterranean paradise on Earth in antiquity, which was destroyed by later civilisations, dates back to at least the 18th century and was for centuries fashionable in archaeological and historical circles. Based on a broad variety of methods, e.g. historical documents, analysis of trade relations, floodplain sediments, pollen, tree-ring and further archaeometric analyses and population studies, Alfred Thomas Grove's and Oliver Rackham's work on "The Nature of Mediterranean Europe" challenges this common wisdom of a Mediterranean Europe as a "Lost Eden", a formerly fertile and forested region, that had been progressively degraded and desertified by human mismanagement.[119] The belief stems more from the failure of the recent landscape to measure up to the imaginary past of the classics as idealised by artists, poets and scientists of the early modern Enlightenment.[119]

The thermonuclear bomb that fell into the sea recovered off Palomares, Almería, 1966

The historical evolution of climate, vegetation and landscape in southern Europe from prehistoric times to the present is much more complex and underwent various changes. For example, some of the deforestation had already taken place before the Roman age. While in the Roman age large enterprises such as the latifundia took effective care of forests and agriculture, the largest depopulation effects came with the end of the empire. Some[who?] assume that the major deforestation took place in modern times—the later usage patterns were also quite different e.g. in southern and northern Italy. Also, the climate has usually been unstable and there is evidence of various ancient and modern "Little Ice Ages",[120][page needed] and plant cover accommodated to various extremes and became resilient to various patterns of human activity.[119]

Human activity was therefore not the cause of climate change but followed it.[119] The wide ecological diversity typical of Mediterranean Europe is predominantly based on human behaviour, as it is and has been closely related to human usage patterns.[119] The diversity range[clarification needed] was enhanced by the widespread exchange and interaction of the longstanding and highly diverse local agriculture, intense transport and trade relations, and the interaction with settlements, pasture and other land use. The greatest human-induced changes, however, came after World War II, in line with the "1950s syndrome"[121] as rural populations throughout the region abandoned traditional subsistence economies. Grove and Rackham suggest that the locals left the traditional agricultural patterns and instead became scenery-setting agents[clarification needed] for tourism. This resulted in more uniform, large-scale formations[of what?].[119] Among further current important threats to Mediterranean landscapes are overdevelopment of coastal areas, abandonment of mountains and, as mentioned, the loss of variety via the reduction of traditional agricultural occupations.[119]

### Natural hazards

Stromboli volcano in Italy

The region has a variety of geological hazards which have closely interacted with human activity and land use patterns. Among others, in the eastern Mediterranean, the Thera eruption, dated to the 17th or 16th century BC, caused a large tsunami that some experts hypothesise devastated the Minoan civilisation on the nearby island of Crete, further leading some to believe that this may have been the catastrophe that inspired the Atlantis legend.[122] Mount Vesuvius is the only active volcano on the European mainland, while others, Mount Etna and Stromboli, are on neighbouring islands. The region around Vesuvius including the Phlegraean Fields Caldera west of Naples are quite active[123] and constitute the most densely populated volcanic region in the world where an eruptive event may occur within decades.[124]

Vesuvius itself is regarded as quite dangerous due to a tendency towards explosive (Plinian) eruptions.[125] It is best known for its eruption in AD 79 that led to the burying and destruction of the Roman cities of Pompeii and Herculaneum.

The large experience[clarification needed] of member states and regional authorities has led to exchange[of what?] on the international level with the cooperation of NGOs, states, regional and municipality authorities and private persons.[126] The Greek–Turkish earthquake diplomacy is a quite positive example of natural hazards leading to improved relations between traditional rivals in the region after earthquakes in İzmir and Athens in 1999. The European Union Solidarity Fund (EUSF) was set up to respond to major natural disasters and express European solidarity to disaster-stricken regions within all of Europe.[127] The largest amount of funding requests in the EU relates to forest fires, followed by floods and earthquakes. Forest fires, whether human-made or natural, are a frequent and dangerous hazard in the Mediterranean region.[126] Tsunamis are also an often-underestimated hazard in the region. For example, the 1908 Messina earthquake and tsunami took more than 123,000 lives in Sicily and Calabria and were among the deadliest natural disasters in modern Europe.

### Invasive species

The reticulate whipray is one of the species that colonised the Eastern Mediterranean through the Suez Canal as part of the ongoing Lessepsian migration.

The opening of the Suez Canal in 1869 created the first salt-water passage between the Mediterranean and the Red Sea. The Red Sea is higher than the Eastern Mediterranean, so the canal functions as a tidal strait that pours Red Sea water into the Mediterranean. The Bitter Lakes, which are hyper-saline natural lakes that form part of the canal, blocked the migration of Red Sea species into the Mediterranean for many decades, but as the salinity of the lakes gradually equalised with that of the Red Sea, the barrier to migration was removed, and plants and animals from the Red Sea have begun to colonise the Eastern Mediterranean. The Red Sea is generally saltier and more nutrient-poor than the Atlantic, so the Red Sea species have advantages over Atlantic species in the salty and nutrient-poor Eastern Mediterranean. Accordingly, Red Sea species invade the Mediterranean biota, and not vice versa; this phenomenon is known as the Lessepsian migration (after Ferdinand de Lesseps, the French engineer) or Erythrean ("red") invasion. The construction of the Aswan High Dam across the Nile River in the 1960s reduced the inflow of freshwater and nutrient-rich silt from the Nile into the Eastern Mediterranean, making conditions there even more like the Red Sea and worsening the impact of the invasive species.

Invasive species have become a major component of the Mediterranean ecosystem and have serious impacts on the Mediterranean ecology, endangering a number of local and endemic Mediterranean species. A first look at some groups of marine species shows that over 70% of exotic decapods [128] and some 2/3 of exotic fishes [129] found in the Mediterranean are of Indo-Pacific origin, introduced from the Red Sea via the Suez Canal. This makes the Canal the first pathway of arrival of alien species into the Mediterranean. The impacts of some Lessepsian species have proven to be considerable, mainly in the Levantine basin of the Mediterranean, where they are replacing native species and becoming a familiar sight.

According to definitions by the Mediterranean Science Commission and the International Union for Conservation of Nature, and to Convention on Biological Diversity (CBD) and Ramsar Convention terminologies, they are alien species, as they are non-native (non-indigenous) to the Mediterranean Sea, and are found outside their normal, non-adjacent area of distribution. When these species succeed in establishing populations in the Mediterranean Sea, compete with and begin to replace native species they are "Alien Invasive Species", as they are an agent of change and a threat to the native biodiversity. In the context of CBD, "introduction" refers to the movement by human agency, indirect or direct, of an alien species outside of its natural range (past or present). The Suez Canal, being an artificial (human-made) canal, is a human agency. Lessepsian migrants are therefore "introduced" species (indirect, and unintentional). Whatever wording is chosen, they represent a threat to the native Mediterranean biodiversity, because they are non-indigenous to this sea. In recent years, the Egyptian government's announcement of its intentions to deepen and widen the Canal [130] raised concerns from marine biologists, fearing that such an act will only worsen the invasion of Red Sea species into the Mediterranean, and lead to even more species passing through the Canal.[131]

#### Arrival of new tropical Atlantic species

In recent decades, the arrival of exotic species from the tropical Atlantic has become noticeable. In many cases this reflects an expansion – favoured by a warming trend of sub-tropical Atlantic waters, and also by a fast-growing maritime traffic – of the natural range of species that now enter the Mediterranean through the Strait of Gibraltar. While not as intense as Lessepsian migration, the process is of importance and is therefore receiving increased levels of scientific coverage.[132]

### Sea-level rise

By 2100 the overall level of the Mediterranean could rise between 3 and 61 cm (1.2 and 24.0 in) as a result of the effects of climate change.[133] This could have adverse effects on populations across the Mediterranean:

* Rising sea levels will submerge parts of Malta. Rising sea levels will also mean rising salt water levels in Malta's groundwater supply and reduce the availability of drinking water.[134]
* A 30 cm (12 in) rise in sea level would flood 200 square kilometres (77 sq mi) of the Nile Delta, displacing over 500,000 Egyptians.[135]
* Cyprus wetlands are also in danger of being destroyed by the rising temperatures and sea levels.[136]

Coastal ecosystems also appear to be threatened by sea level rise, especially enclosed seas such as the Baltic, the Mediterranean and the Black Sea. These seas have only small and primarily east–west movement corridors, which may restrict northward displacement of organisms in these areas.[137] Sea level rise for the next century (2100) could be between 30 cm (12 in) and 100 cm (39 in) and temperature shifts of a mere 0.05–0.1 °C in the deep sea are sufficient to induce significant changes in species richness and functional diversity.[138]

### Pollution

Pollution in this region has been extremely high in recent years.[when?] The United Nations Environment Programme has estimated that 650,000,000 t (720,000,000 short tons) of sewage, 129,000 t (142,000 short tons) of mineral oil, 60,000 t (66,000 short tons) of mercury, 3,800 t (4,200 short tons) of lead and 36,000 t (40,000 short tons) of phosphates are dumped into the Mediterranean each year.[139] The Barcelona Convention aims to 'reduce pollution in the Mediterranean Sea and protect and improve the marine environment in the area, thereby contributing to its sustainable development.'[140] Many marine species have been almost wiped out because of the sea's pollution. One of them is the Mediterranean monk seal which is considered to be among the world's most endangered marine mammals.[141] The Mediterranean is also plagued by marine debris. A 1994 study of the seabed using trawl nets around the coasts of Spain, France and Italy reported a particularly high mean concentration of debris; an average of 1,935 items per km2.[142]

### Shipping

A cargo ship cruises towards the Strait of Messina

Some of the world's busiest shipping routes are in the Mediterranean Sea. In particular, the Maritime Silk Road from Asia and Africa leads through the Suez Canal directly into the Mediterranean Sea to its deep-water ports in Valencia, Piraeus, Trieste, Genoa, Marseilles and Barcelona. It is estimated that approximately 220,000 merchant vessels of more than 100 tonnes cross the Mediterranean Sea each year—about one-third of the world's total merchant shipping. These ships often carry hazardous cargo, which if lost would result in severe damage to the marine environment.

The discharge of chemical tank washings and oily wastes also represent a significant source of marine pollution. The Mediterranean Sea constitutes 0.7% of the global water surface and yet receives 17% of global marine oil pollution. It is estimated that every year between 100,000 t (98,000 long tons) and 150,000 t (150,000 long tons) of crude oil are deliberately released into the sea from shipping activities.

Port of Trieste

Approximately 370,000,000 t (360,000,000 long tons) of oil are transported annually in the Mediterranean Sea (more than 20% of the world total), with around 250–300 oil tankers crossing the sea every day. An important destination is the Port of Trieste, the starting point of the Transalpine Pipeline, which covers 40% of Germany's oil demand (100% of the federal states of Bavaria and Baden-Württemberg), 90% of Austria and 50% of the Czech Republic.[143] Accidental oil spills happen frequently with an average of 10 spills per year. A major oil spill could occur at any time in any part of the Mediterranean.[138]

Valencia

Barcelona

Genoa

Ambarlı

Piraeus

Limassol

Fos

Marsaxlokk

La Spezia

Algeciras

Gioia Tauro

Tanger-Med

Leghorn

Evyap

Mersin

Haifa

Ashdod

Beirut

Gemlik

Nemrut Bay

class=notpageimage|

Largest ports of the Mediterranean area per total vessel traffic as of 2016.[144]

### Tourism

File:Kemer beach, Antalya.jpgKemer Beach in Antalya on the Turkish Riviera (Turquoise Coast). In 2019, Turkey ranked sixth in the world in terms of the number of international tourist arrivals, with 51.2 million foreign tourists visiting the country.[145]

The coast of the Mediterranean has been used for tourism since ancient times, as the Roman villa buildings on the Amalfi Coast or in Barcola show. From the end of the 19th century, in particular, the beaches became places of longing for many Europeans and travellers. From then on, and especially after World War II, mass tourism to the Mediterranean began with all its advantages and disadvantages. While initially, the journey was by train and later by bus or car, today the plane is increasingly used.[146]

Tourism is today one of the most important sources of income for many Mediterranean countries, despite the human-made geopolitical conflicts[clarification needed] in the region. The countries have tried to extinguish rising human-made chaotic zones[clarification needed] that might affect the region's economies and societies in neighbouring coastal countries, and shipping routes. Naval and rescue components in the Mediterranean Sea are considered to be among the best[citation needed] due to the rapid cooperation between various naval fleets. Unlike the vast open oceans, the sea's closed position facilitates effective naval and rescue missions[citation needed], considered the safest[citation needed] and regardless of[clarification needed] any human-made or natural disaster.[147]

Tourism is a source of income for small coastal communities, including islands, independent of urban centres. However, tourism has also played a major role in the degradation of the coastal and marine environment. Rapid development has been encouraged by Mediterranean governments to support the large numbers of tourists visiting the region, but this has caused serious disturbance to marine habitats by erosion and pollution in many places along the Mediterranean coasts.

Tourism often concentrates in areas of high natural wealth[clarification needed], causing a serious threat to the habitats of endangered species such as sea turtles and monk seals. Reductions in natural wealth may reduce the incentive for tourists to visit.[138]

### Overfishing

Fish stock levels in the Mediterranean Sea are alarmingly low. The European Environment Agency says that more than 65% of all fish stocks in the region are outside safe biological limits and the United Nations Food and Agriculture Organisation, that some of the most important fisheries—such as albacore and bluefin tuna, hake, marlin, swordfish, red mullet and sea bream—are threatened.[date missing]

There are clear indications that catch size and quality have declined, often dramatically, and in many areas, larger and longer-lived species have disappeared entirely from commercial catches.

Large open-water fish like tuna have been a shared fisheries resource for thousands of years but the stocks are now dangerously low. In 1999, Greenpeace published a report revealing that the amount of bluefin tuna in the Mediterranean had decreased by over 80% in the previous 20 years and government scientists warn that without immediate action the stock will collapse.

### Marine heatwaves

Main article: Earth:Marine heatwave

A study showed that climate change-related exceptional marine heatwaves in the Mediterranean Sea during 2015–2019 resulted in widespread mass sealife die-offs in five consecutive years.[148][149]

## Gallery

* Europa Point, Gibraltar

* Old city of Ibiza Town, Spain

* Panoramic view of La Condamine, Monaco

* The beach of la Courtade in the Îles d'Hyères, France

* Sardinia's south coast, Italy

* Pretty Bay in Birżebbuġa, Malta

Pretty Bay in Birżebbuġa, Malta

* Panoramic view of Piran, Slovenia

* Panoramic view of Cavtat, Croatia

* View of Neum, Bosnia and Herzegovina

* A view of Sveti Stefan, Montenegro

* Ksamil Islands, Albania

* Navagio, Greece

* Ölüdeniz, Turquoise Coast, Turkey

* Error creating thumbnail: Unable to save thumbnail to destination

Paphos, Cyprus

* Burj Islam Beach, Latakia, Syria

* A view of Raouché off the coast of Beirut, Lebanon

* A view of Haifa, Israel

* Sunset at the Deir al-Balah beach, Gaza Strip

Sunset at the Deir al-Balah beach, Gaza Strip

* Coast of Alexandria, view From Bibliotheca Alexandrina, Egypt

* Ras El Hilal sea caves, Libya

* Beach of Hammamet, Tunisia

* Les Aiguades near Béjaïa, Algeria

* El Jebha, a port town in Morocco

## See also

* Unsolved:Atlantropa
* Place:Eastern Mediterranean - Countries that are geographically located to the east of the Mediterranean Sea
* Medicine:Familial Mediterranean fever
* Earth:Mediterranean sea (oceanography) - Mostly enclosed sea with limited exchange with outer oceans

## Notes

1. ↑ Not including the area of the Mediterranean Sea
2. ↑ Through the Ebro
3. ↑ Through the Struma, Maritsa and Nestos, see Geography of Bulgaria#Hydrography
4. ↑ Through the Drin
5. ↑ Through the Drin and Vardar
6. ↑ Through the Marecchia[47]
7. ↑ Through the Struma
8. ↑ Through the Rhône, Po and Adige, see Hydrology of Switzerland

## References

1. ↑ Pinet, Paul R. (2008). Invitation to Oceanography. 30. Jones & Barlett Learning. 220. ISBN 978-0-7637-5993-3. https://books.google.com/books?id=6TCm8Xy-sLUC&pg=PA220.
2. ↑ Boxer, Baruch. "Mediterranean Sea" (in en-US). https://www.britannica.com/place/Mediterranean-Sea.
3. ↑ "Nile River" (in en). https://education.nationalgeographic.org/resource/nile-river.
4. ↑ Golvin, Jean-Claude (1991). L'Égypte restituée, Tome 3. Paris: Éditions Errance. p. 273. ISBN 2-87772-148-5.
5. ↑ Geoffrey Rickman, "The creation of Mare Nostrum: 300 BC – 500 AD", in David Abulafia, ed., The Mediterranean in History, ISBN 1-60606-057-0, 2011, p. 133.
6. ↑ 6.0 6.1 Vaso Seirinidou, "The Mediterranean" in Diana Mishkova, Balázs Trencsényi, European Regions and Boundaries: A Conceptual History, series European Conceptual History 3, ISBN 1-78533-585-5, 2017, p. 80
7. ↑ "entry μεσόγαιος". Liddell & Scott. http://old.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus:text:1999.04.0057:entry=#66422.
8. ↑ Oxford English Dictionary, 3rd ed, 2001, s.v.
9. ↑ Dehkhoda, Ali Akbar. ""دریای روم" entry". https://www.parsi.wiki/fa/wiki/247689/دریای-روم.
10. ↑ 10.0 10.1 10.2 Vella, Andrew P. (1985). "Mediterranean Malta". Hyphen 4 (5): 469–472. http://melitensiawth.com/incoming/Index/Hyphen/Hyphen. 4(1985)5/02.pdf.
11. ↑ Dehkhoda, Ali Akabar. ""دریای شام" entry". https://www.parsi.wiki/fa/wiki/247707/دریای-شام.
12. ↑ 12.0 12.1 12.2 "Baḥr al-Rūm" in Encyclopedia of Islam, 2nd ed
13. ↑ Diran Kélékian, Dictionnaire Turc-Français, Constantinople, 1911
14. ↑ Özhan Öztürk claims that in Old Turkish ak also means "west" and that Akdeniz hence means "West Sea" and that Karadeniz (Black Sea) means "North Sea". Özhan Öztürk.  Pontus: Antik Çağ'dan Günümüze Karadeniz'in Etnik ve Siyasi Tarihi Genesis Yayınları. Ankara. 2011. pp. 5–9. http://www.karalahana.com/makaleler/kitap/pontus-antik-cagdan-gunumuze-karadeniz-etnik-siyasi-tarihi.htm.
15. ↑ Johann Knoblock. Sprache und Religion, Vol. 1 (Carl Winter Universitätsverlag, 1979), 18; cf. Schmitt, Rüdiger (1989). "Black – Encyclopaedia Iranica". Encyclopaedia Iranica, Vol. IV, Fasc. 3. pp. 310–313. http://www.iranicaonline.org/articles/black-sea.
16. ↑ David Abulafia (2011). The Great Sea: A Human History of the Mediterranean. Oxford University Press.
17. ↑ Rappoport, S. (Doctor of Philosophy, Basel). History of Egypt (undated, early 20th century), Volume 12, Part B, Chapter V: "The Waterways of Egypt", pp. 248–257 (online). London: The Grolier Society.
18. ↑ Couper, Alastair (2015). The Geography of Sea Transport. pp. 33–37. ISBN 978-1-317-35150-4. https://books.google.com/books?id=WFVACwAAQBAJ&q=The+Geography+of+Sea+Transport&pg=PA37.
19. ↑ Balard, Michel (2003). The Experience of Crusading, Volume 2 – Defining the Crusader Kingdom. Cambridge University Press. pp. 23–35. ISBN 978-0-521-78151-0. https://books.google.com/books?id=JEN-0A3icQUC&q=amalfi+cairo&pg=PA233.
20. ↑ Housley, Norman (2006). Contesting the Crusades. Blackwell Publishing. pp. 152–54. ISBN 978-1-4051-1189-8.
21. ↑ Brundage, James (2004). Medieval Italy: An Encyclopedia. Routledge. p. 273. ISBN 978-1-135-94880-1. https://books.google.com/books?id=E2CTAgAAQBAJ&q=through+all+these+military+triumphs+and+reverses,+italian+merchants+constituted+the+mainstay&pg=PT303.
22. ↑ Robert Davis (5 December 2003). Christian Slaves, Muslim Masters: White Slavery in the Mediterranean, the Barbary Coast and Italy, 1500–1800. Palgrave Macmillan. ISBN 978-0-333-71966-4. https://archive.org/details/trent_0116405722392. Retrieved 17 January 2013.
23. ↑ "British Slaves on the Barbary Coast". Bbc.co.uk. http://www.bbc.co.uk/history/british/empire_seapower/white_slaves_01.shtml.
24. ↑ C.I. Gable – Constantinople Falls to the Ottoman Turks –  Boglewood Timeline – 1998 – Retrieved 3 September 2011.
25. ↑ "History of the Ottoman Empire, an Islamic Nation where Jews Lived" – Sephardic Studies and Culture – Retrieved 3 September 2011.
26. ↑ Robert Guisepi – The Ottomans: From Frontier Warriors To Empire Builders[Usurped!] – 1992 – History World International – Retrieved 3 September 2011.
27. ↑ See: Brian Lavery "Nelson's Navy: The Ships, Men, and Organization, 1793–1815" (2013).
28. ↑ Mary Pelletier "A brief history of the Suez Canal" In: Apollo 3 July 2018; Harry de Wilt: Is One Belt, One Road a China crisis for North Sea main ports? in World Cargo News, 17. December 2019; Marcus Hernig: Die Renaissance der Seidenstraße (2018), pp 112; Hans Reis "Der Suezkanal – die wichtigste von Menschen geschaffene Wasserstrasse wurde vor 150 Jahren gebaut und war oft umkämpft" In: Neue Zürcher Zeitung 17 November 2019; Bernhard Simon: Can The New Silk Road Compete With The Maritime Silk Road? in The Maritime Executive, 1 January 2020.
29. ↑ "Migrant deaths prompt calls for EU action". 13 October 2013. https://www.aljazeera.com/news/2013/10/13/migrant-deaths-prompt-calls-for-eu-action/.
30. ↑ "Schulz: EU migrant policy 'turned Mediterranean into graveyard'". 24 October 2013. http://euobserver.com/tickers/121894.
31. ↑ "Novruz Mammadov: The Mediterranean become a burial ground". http://topnews.az/en/news/148766/Novruz-Mammadov-The-Mediterranean-become-a-burial-ground.html.
32. ↑ "Over one million sea arrivals reach Europe in 2015". 30 December 2015. http://www.unhcr.org/news/latest/2015/12/5683d0b56/million-sea-arrivals-reach-europe-2015.html.
33. ↑ "What will Italy's new government mean for migrants?". The Local Italy. 21 May 2018. https://www.thelocal.it/20180521/what-will-italys-new-government-mean-for-migrants.
34. ↑ "African migrants fear for future as Italy struggles with surge in arrivals". Reuters. 18 July 2017. https://www.reuters.com/article/us-italy-migrants-africa/african-migrants-fear-for-future-as-italy-struggles-with-surge-in-arrivals-idUSKBN1A30QD.
35. ↑ Harald Krachler "Alois Negrelli, der Suezkanalplaner" In: Wiener Zeitung 18 January 1999.
36. ↑ Bai, Yan; He, Xianqiang; Yu, Shujie; Chen, Chen-Tung (2018-02-28). "Changes in the Ecological Environment of the Marginal Seas along the Eurasian Continent from 2003 to 2014" (in en). Sustainability 10 (3): 635. doi:10.3390/su10030635. ISSN 2071-1050.
37. ↑ "Sea of Crete | sea, Greece". https://www.britannica.com/place/Sea-of-Crete.
38. ↑ 38.0 38.1 38.2 "Limits of Oceans and Seas, 3rd edition". International Hydrographic Organization. 1953. https://iho.int/uploads/user/pubs/standards/s-23/S-23_Ed3_1953_EN.pdf.
39. ↑ Lionello, P. (2012). The Climate of the Mediterranean Region: From the Past to the Future. Elsevier. p. lxii. ISBN 9780123914774. https://books.google.com/books?id=a2u4HMfAMXoC. "Geographically, the Mediterranean catchment is extremely large and heterogeneous, covering an area of approximately 5 millions km2. It extends from the equator, where the springs of the White Nile River are located, to the source of the Rhone River at approximately 48°N. In longitude, it spans about 40°, from the middle of the Iberian peninsula, at 4°W, towards southern Turkey and the Middle East coasts facing the Mediterranean Sea (35°E)."
40. ↑ Poulos, Serafeim (2011). "An insight to the fluvial characteristics of the Mediterranean and Black Sea watersheds". Advances in the Research of Aquatic Environment. Springer Nature. p. 191. https://www.researchgate.net/publication/226665381. "The drainage basin of the Mediterranean Sea, accounting for some 4,184 103 km2 (including the R. Nile)"
41. ↑ 41.0 41.1 41.2 Margat, Jean F. (2004). Mediterranean Basin Water Atlas. UNESCO. p. 4. ISBN 9782951718159. https://books.google.com/books?id=n5CGAAAAIAAJ. "A basin of varied geometry: Area of the entire Mediterranean Basin, including the whole of the Nile Basin = 4,562,480 km2; Area of the 'conventional' Mediterranean Basin (i.e. counting only part of the Nile Basin in Egypt) = 1,836,480 km2 [...] There are few rivers with an abundant flow. Only three rivers have a mean discharge of more than 1000 m3/s: the Nile (at Aswan), the Rhône and the Po."
42. ↑ García-García, D. (2022). "Hydrological cycle of the Mediterranean-Black Sea system". Climate Dynamics 59 (7–8): 1919–1938. doi:10.1007/s00382-022-06188-2. Bibcode: 2022ClDy...59.1919G. "In the continents, the drainage basins discharging into the Mediterranean and Black seas are defined according to the global continental runoff pathways scheme (Oki and Sud 1998), and they cover 5.34 × 106 and 2.43 × 106 km2, respectively".
43. ↑ Gupta, Avijit (2008). Large Rivers: Geomorphology and Management. John Wiley & Sons. p. 275. ISBN 9780470723715. https://books.google.com/books?id=gXgyHLT_hwIC. "The highest point in the Nile basin is Mount Stanley (5109 m) in the Ruwenzori Mountain range between Lake Edward and Lake Albert"
44. ↑ 44.0 44.1 "The Mediterranean Marine and Coastal Environment: Hydrological and climatic setting.". Mediterranean Action Plan of the United Nations Environment Programme (UNEP/MAP). https://www.medqsr.org/mediterranean-marine-and-coastal-environment. "The Mediterranean is an area of transition between a temperate Europe with relatively abundant and consistent water resources, and the arid African and Arabian deserts that are very short of water."
45. ↑ 45.0 45.1 "Drainage basin of the Mediterranean Sea". Our Waters: Joining Hands Across Borders: First Assessment of Transboundary Rivers, Lakes and Groundwaters. United Nations Economic Commission for Europe. 2007. pp. 154–181. https://unece.org/fileadmin/DAM/env/water/publications/pub76.htm. Retrieved 15 April 2022.
46. ↑ Maier, Andreas (2015). The Central European Magdalenian: Regional Diversity and Internal Variability. Springer Publishing. p. 187. ISBN 9789401772068. https://books.google.com/books?id=4ZiKCgAAQBAJ. "The major geographic features characterizing the landscape are the Rhône-Saône valley, the Jura Mountains, the Molasse basin and the northwestern slopes of the Alps."
47. ↑ "San Marino". Encyclopædia Britannica. https://www.britannica.com/place/San-Marino-republic-Europe.
48. ↑ "The Nile River Basin Initiative". RTI International. 23 May 2018. https://www.rti.org/impact/nile-river-basin-initiative. "The longest river in the world, the Nile spans 35 degrees of latitude, drains three million square kilometers of land (one-tenth of the total surface area of Africa), and runs through 11 countries whose combined population totals over 300 million people: Egypt, Ethiopia, Eritrea, Kenya, Rwanda, Burundi, Tanzania, Uganda, Sudan, South Sudan, and the Democratic Republic of the Congo. The Nile's primary water source, Lake Victoria, is the world's second-largest body of fresh water, and the Nile Delta in northern Egypt covers over 150 miles of the Mediterranean coastline."
49. ↑ Jonah 1:3 – "But Jonah rose up to flee unto Tarshish from the presence of the LORD, and went down to Joppa; and he found a ship going to Tarshish: so he paid the fare thereof, and went down into it, to go with them unto Tarshish [...]."
50. ↑ "Sea Around Us | Fisheries, Ecosystems and Biodiversity". http://www.seaaroundus.org/data/#/eez.
51. ↑ "Sea Around Us | Fisheries, Ecosystems and Biodiversity". http://www.seaaroundus.org/data/#/eez/793?chart=catch-chart&dimension=taxon&measure=tonnage&limit=10.
52. ↑ "Mediterranean Sea | Facts, History, Islands, & Countries". https://www.britannica.com/place/Mediterranean-Sea.
53. ↑ "The Mediterranean – a sea surrounded by land | WWF". https://wwf.panda.org/knowledge_hub/where_we_work/mediterranean/.
54. ↑ "The Mediterranean coast". FAO. http://www.fao.org/3/W4347E/w4347e0s.htm.
55. ↑ Moatti, Jean-Paul; Thiébault, Stéphane (2018). The Mediterranean region under climate change: A scientific update. Institut de recherche pour le développement. p. 363. ISBN 9782709922203. https://books.google.com/books?id=e799DwAAQBAJ. "With about 10,000 islands and islets (approx. 250 inhabited by humans), the Mediterranean Sea can be considered as one of the largest archipelagos in the world."
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66. ↑ Seatemperature.org. "Mercin (alternate names - Mersin, Mersina, Mersine): Monthly Weather Averages - Turkey". https://www.seatemperature.org/middle-east/turkey/mercin.htm.
67. ↑ Weather2Travel.com. "Tel Aviv Climate: Monthly Weather Averages – Israel". http://www.weather2travel.com/climate-guides/israel/tel-aviv.php.
68. ↑ Seatemperature.org. "Alexandria Climate: Monthly Weather Averages – Egypt". https://www.seatemperature.org/africa/egypt/alexandria.htm.
69. ↑ Pinet, Paul R. (1996), Invitation to Oceanography (3rd ed.), St Paul, Minnesota: West Publishing Co., p. 202, ISBN 978-0-314-06339-7
70. ↑ Pinet 1996, p. 206.
71. ↑ 71.0 71.1 Emeis, Kay-Christian; Struck, Ulrich; Schulz, Hans-Martin; Rosenberg, Reinhild; Bernasconi, Stefano; Erlenkeuser, Helmut; Sakamoto, Tatsuhiko; Martinez-Ruiz, Francisca (2000). "Temperature and salinity variations of Mediterranean Sea surface waters over the last 16,000 years from records of planktonic stable oxygen isotopes and alkenone unsaturation ratios". Palaeogeography, Palaeoclimatology, Palaeoecology 158 (3–4): 259–280. doi:10.1016/s0031-0182(00)00053-5. Bibcode: 2000PPP...158..259E.
72. ↑ Ludwig Ellenberg: Die Meerenge von Gibraltar – Küstenmorphologie zwischen Mittelmeer und Atlantik. In: Geographica Helvetica. Vol. 36, No. 3, 1981, pp. 109–120, doi:10.5194/gh-36-109-1981
73. ↑ Robert Hofrichter (ed.): Das Mittelmeer: Geschichte und Zukunft eines ökologisch sensiblen Raums, p. 530
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75. ↑ Millot, Claude; Taupier-Letage, Isabelle (2005). "Circulation in the Mediterranean Sea". The Mediterranean Sea. Handbook of Environmental Chemistry. 5K. pp. 29–66. doi:10.1007/b107143. ISBN 978-3-540-25018-0. https://hal.archives-ouvertes.fr/hal-01191856/file/Millot_Taupier-Letage_Circulation_Med_Handbook_2005_HAL (1).pdf.
76. ↑ Millot, C. (1989). "La Circulation Générale En Méditerranée Occidentale : Aperçu De Nos Connaissances Et Projets D'études" (in fr). Annales de Géographie 98 (549): 497–515. doi:10.3406/geo.1989.20925.
77. ↑ Gasparini, G.P.; Ortona, A.; Budillon, G.; Astraldi, M.; Sansone, E. (June 2005). "The effect of the Eastern Mediterranean Transient on the hydrographic characteristics in the Strait of Sicily and in the Tyrrhenian Sea". Deep Sea Research Part I: Oceanographic Research Papers 52 (6): 915–935. doi:10.1016/j.dsr.2005.01.001. Bibcode: 2005DSRI...52..915G.
78. ↑ Lascaratos, Alex; Roether, Wolfgang; Nittis, Kostas; Klein, Birgit (August 1999). "Recent changes in deep water formation and spreading in the eastern Mediterranean Sea: a review". Progress in Oceanography 44 (1–3): 5–36. doi:10.1016/S0079-6611(99)00019-1. Bibcode: 1999PrOce..44....5L.
79. ↑ Theocharis, Alexander; Nittis, Kostas; Kontoyiannis, Harilaos; Papageorgiou, Emanuel; Balopoulos, Efstathios (1 June 1999). "Climatic changes in the Aegean Sea influence the eastern Mediterranean thermohaline circulation (1986–1997)". Geophysical Research Letters 26 (11): 1617–1620. doi:10.1029/1999GL900320. Bibcode: 1999GeoRL..26.1617T.
80. ↑ Civitarese, G., Gacic, M., Lipizer, M., and Borzelli, G. L. E. (2010). On the impact of the Bimodal Oscillating System (BiOS) on the biogeochemistry and biology of the Adriatic and Ionian Seas (Eastern Mediterranean). Biogeosciences, 7(12) : 3987–3997. WOS :000285574100006.
81. ↑ 81.0 81.1 Giorgi, F. (2006). Climate change hot spots. Geophysical Research Letters, 33(8) :L08707. 15
82. ↑ Béthoux, J. P., Gentili, B., Raunet, J., and Tailliez, D. (1990). Warming trend in the western Mediterranean deep water. Nature, 347(6294) : 660–662.
83. ↑ Adloff, F., Somot, S., Sevault, F., Jordà, G., Aznar, R., Déqué, M., Herrmann, M., Marcos, M., Dubois, C., Padorno, E., Alvarez-Fanjul, E., and Gomis, D. (2015). Mediterranean Sea response to climate change in an ensemble of twenty-first century scenarios. Climate Dynamics, 45(9–10) : 2775–2802
84. ↑ Sisma-Ventura, Guy; Bialik, Or M.; Yam, Ruth; Herut, Barak; Silverman, Jacob (November 2017). "p CO 2 variability in the surface waters of the ultra-oligotrophic Levantine Sea: Exploring the air–sea CO 2 fluxes in a fast warming region". Marine Chemistry 196: 13–23. doi:10.1016/j.marchem.2017.06.006. Bibcode: 2017MarCh.196...13S.
85. ↑ Wimart-Rousseau, Cathy; Wagener, Thibaut; Álvarez, Marta; Moutin, Thierry; Fourrier, Marine; Coppola, Laurent; Niclas-Chirurgien, Laure; Raimbault, Patrick et al. (2021). "Seasonal and Interannual Variability of the CO
2 System in the Eastern Mediterranean Sea: A Case Study in the North Western Levantine Basin". Frontiers in Marine Science 8. doi:10.3389/fmars.2021.649246. ISSN 2296-7745.CO2+System+in+the+Eastern+Mediterranean+Sea:+A+Case+Study+in+the+North+Western+Levantine+Basin&rft.jtitle=Frontiers+in+Marine+Science&rft.aulast=Wimart-Rousseau&rft.aufirst=Cathy&rft.au=Wimart-Rousseau, Cathy&rft.au=Wagener, Thibaut&rft.au=Álvarez, Marta&rft.au=Moutin, Thierry&rft.au=Fourrier, Marine&rft.au=Coppola, Laurent&rft.au=Niclas-Chirurgien, Laure&rft.au=Raimbault, Patrick&rft.au=D'Ortenzio, Fabrizio&rft.date=2021&rft.volume=8&rft_id=info:doi/10.3389/fmars.2021.649246&rft.issn=2296-7745&rfr_id=info:sid/en.wikibooks.org:Place:Mediterranean_Sea">
86. ↑ Bialik, Or M.; Sisma-Ventura, Guy; Vogt-Vincent, Noam; Silverman, Jacob; Katz, Timor (24 September 2022). "Role of oceanic abiotic carbonate precipitation in future atmospheric CO
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87. ↑ Verdura, Jana; Linares, Cristina; Ballesteros, Enric; Coma, Rafel; Uriz, María J.; Bensoussan, Nathaniel; Cebrian, Emma (December 2019). "Biodiversity loss in a Mediterranean ecosystem due to an extreme warming event unveils the role of an engineering gorgonian species". Scientific Reports 9 (1): 5911. doi:10.1038/s41598-019-41929-0. PMID 30976028. Bibcode: 2019NatSR...9.5911V.
88. ↑ Jordà, Gabriel; Marbà, Núria; Duarte, Carlos M. (November 2012). "Mediterranean seagrass vulnerable to regional climate warming". Nature Climate Change 2 (11): 821–824. doi:10.1038/nclimate1533. Bibcode: 2012NatCC...2..821J.
89. ↑ Grossowicz, Michal; Bialik, Or M.; Shemesh, Eli; Tchernov, Dan; Vonhof, Hubert B.; Sisma-Ventura, Guy (24 June 2020). "Ocean warming is the key filter for successful colonization of the migrant octocoral Melithaea erythraea (Ehrenberg, 1834) in the Eastern Mediterranean Sea". PeerJ 8: e9355. doi:10.7717/peerj.9355. PMID 32612887.
90. ↑ Uitz, J., Stramski, D., Gentili, B., D'Ortenzio, F., and Claustre, H. (2012). Estimates of phytoplankton class-specific and total primary production in the Mediterranean Sea from satellite ocean color observations: primary production in the Mediterranean. Global Biogeochemical Cycles, 26(2)
91. ↑ 91.0 91.1 Bosc, E., Bricaud, A., and Antoine, D. (2004). Seasonal and interannual variability in algal biomass and primary production in the Mediterranean Sea, as derived from 4 years of SeaWiFS observations : Mediterranean Sea Biomass and Production. Global Biogeochemical Cycles, 18(1).
92. ↑ Lebeaupin Brossier, C., Béranger, K., Deltel, C., and Drobinski, P. (2011). The Mediterranean response to different space–time resolution atmospheric forcings using perpetual mode sensitivity simulations. Ocean Modelling, 36(1–2) : 1–25
93. ↑ d'Ortenzio, F. and Ribera d'Alcalà, M. (2009). On the trophic regimes of the Mediterranean Sea: a satellite analysis. Biogeosciences, 6(2) : 139–148
94. ↑ Moutin, T., Van Wambeke, F., and Prieur, L. (2012). Introduction to the Biogeochemistry from the Oligo- trophic to the Ultraoligotrophic Mediterranean (BOUM) experiment. Biogeosciences, 9(10) : 3817–3825.
95. ↑ Berland, B., Bonin, D., and Maestrini, S. (1980). Azote ou phosphore ? Considérations sur le paradoxe nutritionnel de la mer méditerranée. Oceanologica Acta, 3(1) : 135–141
96. ↑ Béthoux, J. P., Morin, P., Madec, C., and Gentili, B. (1992). Phosphorus and nitrogen behaviour in the Mediterranean Sea. Deep Sea Research Part A. Oceanographic Research Papers, 39(9) : 1641–1654.
97. ↑ Kress, N. and Herut, B. (2001). Spatial and seasonal evolution of dissolved oxygen and nutrients in the Southern Levantine Basin (Eastern Mediterranean Sea) : chemical characterization of the water masses and inferences on the N : P ratios. Deep Sea Research Part I : Oceanographic Research Papers, 48(11) : 2347–2372
98. ↑ Krom, M. D., Thingstad, T. F., Brenner, S., Carbo, P., Drakopoulos, P., Fileman, T. W., Flaten, G. A. F., Groom, S., Herut, B., Kitidis, V., Kress, N., Law, C. S., Liddicoat, M. I., Mantoura, R. F. C., Pasternak, A., Pitta, P., Polychronaki, T., Psarra, S., Rassoulzadegan, F., Skjoldal, E. F., Spyres, G., Tanaka, T., Tselepides, A., Wassmann, P., Wexels Riser, C., Woodward, E. M. S., Zodiatis, G., and Zohary, T. (2005). Summary and overview of the CYCLOPS P addition Lagrangian experiment in the Eastern Mediterranean. Deep Sea Research Part II : Topical Studies in Oceanography, 52(22–23) : 3090–3108.
99. ↑ Sammartino, M., Di Cicco, A., Marullo, S., and Santoleri, R. (2015). Spatio-temporal variability of micro-, nano- and pico-phytoplankton in the Mediterranean Sea from satellite ocean colour data of SeaWiFS. Ocean Sciences, 11(5) : 759–778
100. ↑ Uitz, J., Stramski, D., Gentili, B., D'Ortenzio, F., and Claustre, H. (2012). Estimates of phytoplankton class-specific and total primary production in the Mediterranean Sea from satellite ocean color obser- vations : primary production in the mediterranean. Global Biogeochemical Cycles, 26(2)
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103. ↑ Garcia-Castellanos, D.; Estrada, F.; Jiménez-Munt, I.; Gorini, C.; Fernàndez, M.; Vergés, J.; De Vicente, R. (2009). "Catastrophic flood of the Mediterranean after the Messinian salinity crisis". Nature 462 (7274): 778–781. doi:10.1038/nature08555. PMID 20010684. Bibcode: 2009Natur.462..778G.
104. ↑ Elmer LaMoreaux, Philip (2001). "Geologic/Hydrogeologic Setting and Classification of Springs". Springs and Bottled Waters of the World: Ancient History, Source, Occurrence, Quality and Use. Springer. p. 57. ISBN 978-3-540-61841-6. https://books.google.com/books?id=sjEoBmfUka0C&pg=PA58.
105. ↑ Žumer, Jože (2004). "Odkritje podmorskih termalnih izvirov" (in sl). Geografski Obzornik 51 (2): 11–17. ISSN 0016-7274. http://zgs.zrc-sazu.si/Portals/8/Geografski_obzornik/go_2004_2.pdf. Script error: The function "in_lang" does not exist.
106. ↑ de la Vara, Alba; Topper, Robin P.M.; Meijer, Paul Th.; Kouwenhoven, Tanja J. (2015). "Water exchange through the Betic and Rifian corridors prior to the Messinian Salinity Crisis: A model study". Paleoceanography 30 (5): 548–557. doi:10.1002/2014PA002719. Bibcode: 2015PalOc..30..548D.
107. ↑ Briand, F. (ed.) (2008). The Messinian Salinity Crisis Mega-Deposits to Microbiology – A consensus report. CIESM Publishers, Paris, Monaco. 168 p.[1]
108. ↑ Krijgsman, W.; Fortuin, A.R.; Hilgen, F.J.; Sierro, F.J. (2001). "Astrochronology for the Messinian Sorbas basin (SE Spain) and orbital (precessional) forcing for evaporite cyclicity". Sedimentary Geology 140 (1): 43–60. doi:10.1016/S0037-0738(00)00171-8. Bibcode: 2001SedG..140...43K. https://dspace.library.uu.nl/bitstream/1874/1632/1/Krijgsman01.pdf. [yes|permanent dead link|dead link}}]
109. ↑ Gargani J., Rigollet C. (2007). "Mediterranean Sea level variations during the Messinian Salinity Crisis.". Geophysical Research Letters 34 (L10405): L10405. doi:10.1029/2007GL029885. Bibcode: 2007GeoRL..3410405G.
110. ↑ Gargani J.; Moretti I.; Letouzey J. (2008). "Evaporite accumulation during the Messinian Salinity Crisis: The Suez Rift Case.". Geophysical Research Letters 35 (2): L02401. doi:10.1029/2007gl032494. Bibcode: 2008GeoRL..35.2401G. https://hal.archives-ouvertes.fr/hal-00357241/file/2007GL032494.pdf.
111. ↑ Govers, Rob (February 2009). "Choking the Mediterranean to dehydration: The Messinian salinity crisis". Geology 37 (2): 167–170. doi:10.1130/G25141A.1. Bibcode: 2009Geo....37..167G. https://semanticscholar.org/paper/2707c259bad288d60259e4f386b32f114fcf7e5c.
112. ↑ Garcia-Castellanos, D.; Villaseñor, A. (15 December 2011). "Messinian salinity crisis regulated by competing tectonics and erosion at the Gibraltar arc". Nature 480 (7377): 359–363. doi:10.1038/nature10651. PMID 22170684. Bibcode: 2011Natur.480..359G.
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115. ↑ F.J. Hilgen (1991). "Astronomical calibration of Gauss to Matuyama sapropels in the Mediterranean and implication for the Geomagnetic Polarity Time Scale". Earth and Planetary Science Letters 104: 226–244. http://igitur-archive.library.uu.nl/geo/2007-0119-200857/hilgen_91_astronomical.pdf. Retrieved 4 December 2009.
116. ↑ Coll, Marta, et al., "The biodiversity of the Mediterranean Sea: estimates, patterns, and threats". PLOS ONE 5.8, 2010.
117. ↑ Hsu K.J., "When the Mediterranean Dried Up" Scientific American, Vol. 227, December 1972, p. 32
118. ↑ Carrington, Damian. "UK's last resident killer whales 'doomed to extinction'" , The Guardian , London, 14 January 2016. Retrieved 17 February 2019.
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123. ↑ Antonio Denti, "Super volcano", global danger, lurks near Pompeii , Reuters , 3 August 2012.
124. ↑ Isaia, Roberto; Paola Marianelli; Alessandro Sbrana (2009). "Caldera unrest prior to intense volcanism in Campi Flegrei (Italy) at 4.0 ka B.P.: Implications for caldera dynamics and future eruptive scenarios". Geophysical Research Letters 36 (L21303): L21303. doi:10.1029/2009GL040513. Bibcode: 2009GeoRL..3621303I.
125. ↑ McGuire, Bill (16 October 2003). "In the shadow of the volcano". The Guardian (Guardian News and Media Limited). https://www.theguardian.com/education/2003/oct/16/research.highereducation2.
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127. ↑ "Press corner". https://ec.europa.eu/commission/presscorner/home/en.
128. ↑ Galil, Bella; Froglia, Carlo; Noël, Pierre (2002). CIESM Atlas of Exotic Species in the Mediterranean: Vol 2 Crustaceans. Paris, Monaco: CIESM Publishers. p. 192. ISBN 92-990003-2-8. https://ciesm.org/catalog/index.php?article=2002.
129. ↑ "IUCN Guidelines for the Prevention of Biodiversity Loss Caused by Alien Invasive Species". International Union for Conservation of Nature. 2000. http://www.issg.org/infpaper_invasive.pdf.
130. ↑ "Egypt to deepen, widen Suez Canal after blockage" (in en). https://www.al-monitor.com/originals/2021/05/egypt-deepen-widen-suez-canal-after-blockage.
131. ↑ Galil, B.S. and Zenetos, A. (2002). A sea change: exotics in the eastern Mediterranean Sea, in: Leppäkoski, E. et al. (2002). Invasive aquatic species of Europe: distribution, impacts and management. pp. 325–336.
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139. ↑ "Pollution in the Mediterranean Sea. Environmental issues". Explore Crete. http://www.explorecrete.com/nature/mediterranean.html.
140. ↑ "EUROPA". Europa. http://europa.eu/scadplus/leg/en/lvb/l28084.htm.
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142. ↑ "Marine Litter: An Analytical Overview". United Nations Environment Programme. 2005. http://www.unep.org/regionalseas/marinelitter/publications/docs/anl_oview.pdf.
143. ↑ Thomas Fromm "Pipeline durch die Alpen: Alles im Fluss" In: Süddeutsche Zeitung, 26 December 2019.
144. ↑ Arvis, Jean-François; Vesin, Vincent; Carruthers, Robin; Ducruet, César; de Langen, Peter (2019). Maritime Networks, Port Efficiency, and Hinterland Connectivity in the Mediterranean. International Development in Focus. Washington, DC: World Bank. p. 41. doi:10.1596/978-1-4648-1274-3. ISBN 978-1-4648-1274-3. http://documents1.worldbank.org/curated/en/508771540319329808/pdf/131217-PUB-PUBLIC-publication-date-is-10-23-18.pdf.
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* Hadhramaut
* Arabian Peninsula coastal fog desert
* Al-Sharat
* Tigris–Euphrates
* Mesopotamia
* Upper Mesopotamia
* Lower Mesopotamia
* Sawad
* Nineveh plains
* Akkad (region)
* Babylonia
* Canaan
* Aram
* Aram-Naharaim
* Eber-Nari
* Suhum
* Eastern Mediterranean
* Mashriq
* Kurdistan
* Levant
* Southern Levant
* Transjordan
* Jordan Rift Valley
* Levantine Sea
* Holy Land
* Palestine
* Land of Israel
* Golan Heights
* Hula Valley
* Galilee
* Gilead
* Judea
* Samaria
* Arabah
* Anti-Lebanon Mountains
* Sinai Peninsula
* Arabian Desert
* Syrian Desert
* Fertile Crescent
* Azerbaijan
* Syria
* Hauran
* Iranian Plateau
* Dasht-e Kavir
* Armenian Highlands
* Caucasus
* Caucasus Mountains
* Greater Caucasus
* Lesser Caucasus
* North Caucasus
* South Caucasus
* Shirvan
* Kur-Araz Lowland
* Lankaran Lowland
* Alborz
* Absheron Peninsula
* Kartli
* Anatolia
* Taurus Mountains
* Aeolis
* Paphlagonia
* Phasiane
* Isauria
* Ionia
* Bithynia
* Cilicia
* Cappadocia
* Caria
* Corduene
* Chaldia
* Doris
* Lycaonia
* Lycia
* Lydia
* Galatia
* Pisidia
* Pontus
* Mysia
* Arzawa
* Speri
* Sophene
* Biga Peninsula
* Troad
* Tuwana
* Alpide belt

South|

* Orient
* Greater India
* Indian subcontinent
* Himalayas
* Hindu Kush
* Bactria
* Carnatic region
* Tamilakam
* Western Ghats
* Eastern Ghats
* Ganges Basin
* Ganges Delta
* Guzgan
* Pashtunistan
* Punjab
* Balochistan
* Gedrosia
* Makran
* Marathwada
* Kashmir
* Kashmir Valley
* Pir Panjal Range
* Thar Desert
* Indus Valley
* Indus River Delta
* Indus Valley Desert
* Indo-Gangetic Plain
* Eastern Coastal Plains
* Kalinga
* Western Coastal Plains
* Meghalaya subtropical forests
* MENASA
* Lower Gangetic plains moist deciduous forests
* Northwestern Himalayan alpine shrub and meadows
* Doab
* Bagar tract
* Great Rann of Kutch
* Little Rann of Kutch
* Deccan Plateau
* Coromandel Coast
* Konkan
* False Divi Point
* Hindi Belt
* Ladakh
* Aksai Chin
* Gilgit-Baltistan
* Baltistan
* Shigar Valley
* High-mountain Asia
* Karakoram
* Saltoro Mountains
* Siachen Glacier
* Bengal
* Bay of Bengal
* Gulf of Khambhat
* Gulf of Kutch
* Halar
* Gulf of Mannar
* Trans-Karakoram Tract
* Wakhan Corridor
* Wakhjir Pass
* Lakshadweep
* Laccadive Islands
* Amindivi Islands
* Paropamisadae
* Andaman and Nicobar Islands
* Andaman Islands
* Nicobar Islands
* Maldive Islands
* Alpide belt
* Asia-Pacific
* Tropical Asia

Southeast|

* Orient
* Sundaland
* Mainland
* Indochina
* Malay Peninsula
* Northern Triangle temperate forests
* Maritime
* Peninsular Malaysia
* Sunda Islands
* Greater Sunda Islands
* Lesser Sunda Islands
* Indonesian Archipelago
* Wallacea
* Timor
* Philippine Archipelago
* Luzon
* Visayas
* Mindanao
* Leyte Gulf
* Gulf of Thailand
* East Indies
* Nanyang
* Alpide belt
* Far East
* Ring of Fire
* Asia-Pacific
* Tropical Asia

* v
* t
* e

Regions of Europe

North|

* Arctic
* Arctic Circle
* Nordic
* Northwestern
* Scandinavia
* Scandinavian Peninsula
* Fennoscandia
* Baltoscandia
* Jutland
* Gotland
* Sápmi
* Ingria
* West Nordic
* Baltic
* Baltic Sea
* Gulf of Bothnia
* Gulf of Finland
* Iceland
* Faroe Islands
* British Isles

East|

* Danubian countries
* Prussia
* Galicia
* Volhynia
* Wallachia
* Transylvania
* Moldavia
* Bukovina
* Bessarabia
* Livonia
* Ruthenia
* Carpathian Ruthenia
* Donbass
* Sloboda Ukraine
* Sambia Peninsula
* Amber Coast
* Curonian Spit
* Izyum Trail
* Lithuania Minor
* Nemunas Delta
* Baltic
* Baltic Sea
* Vyborg Bay
* Karelia
* East Karelia
* Karelian Isthmus
* Lokhaniemi
* Southeastern
* Crimea
* Epirus
* Rumelia
* Balkans
* Aegean Sea
* Aegean Islands
* Attica
* Boeotia
* Opuntian Locris
* Phocis
* Megaris
* Peloponnese
* Chalkidiki
* Aetolia
* Gulf of Chania
* North Caucasus
* Greater Caucasus
* Kabardia
* Istria
* European Russia
* Arctic
* Arctic Circle
* Taman Peninsula
* Southern Russia
* Kola Peninsula

Central|

* North European Plain
* Baltic
* Baltic Sea
* Alpine states
* Alpide belt
* Visegrád Group
* Rhineland
* Eastphalia
* Westphalia
* Prussia
* Lusatia
* Bohemia
* Moravia
* Silesia
* Czech Silesia
* Pomerania
* Pomerelia
* Kashubia
* Bukovina
* Istria
* Transdanubia
* Polesia
* Germania
* Germania Slavica

West|

* Benelux
* Low Countries
* Northwest
* British Isles
* English Channel
* Channel Islands
* Cotentin Peninsula
* Doggerland
* Upper Rhine Plain
* Upper Rhine
* Gaul
* Gascony
* Normandy
* Brittany
* Septimania
* Batavia
* Gulf of Lion
* Iberia
* Al-Andalus
* Baetic System
* Pyrenees
* Alpide belt

South|

* Po Valley (Padania)
* Italian Peninsula
* Tuscan Archipelago
* Insular Italy
* Aegadian Islands
* Occitania
* Iberia
* Al-Andalus
* Baetic System
* Gibraltar Arc
* Southeastern
* Mediterranean
* Alpide belt

* Germanic
* Romance
* Celtic
* Slavic countries
* European Plain
* Eurasian Steppe
* Pontic–Caspian steppe
* Wild Fields
* Pannonian Basin
* Great Hungarian Plain
* Little Hungarian Plain
* Eastern Slovak Lowland

* v
* t
* e

Regions of North America

North
(Canada)|

| Eastern|

* Central Canada
* Atlantic Canada
* Atlantic Northeast
* The Maritimes
* Great Lakes region

|

Western|

* Pacific Northwest
* Prairie Pothole Region

Northern|

* Arctic
* Arctic Circle
* Canadian Arctic Archipelago
* Greenland

* Canadian Prairies
* The Maritimes
* French Canada
* English Canada
* Acadia
* Acadian Peninsula
* Quebec City–Windsor Corridor
* Peace River Country
* Cypress Hills
* Palliser's Triangle
* Canadian Shield
* Interior Alaska-Yukon lowland taiga
* Kodiak Island
* Newfoundland (island)
* Vancouver Island
* Gulf Islands
* Strait of Georgia
* Labrador Peninsula
* Gaspé Peninsula
* Avalon Peninsula
* Bay de Verde Peninsula
* Brodeur Peninsula
* Melville Peninsula
* Bruce Peninsula
* Banks Peninsula (Nunavut)
* Cook Peninsula
* Gulf of Boothia
* Georgian Bay
* Hudson Bay
* James Bay

North
(United States)|

| Arctic|

* Aleutian Arc
* Aleutian Range
* Alaska Peninsula
* Aleutian Islands
* Arctic
* Arctic Circle
* Bering Strait
* Gulf of Alaska

|

Eastern|

* East Coast
* Northeast
* Atlantic Northeast
* The Maritimes
* New England
* Mid-Atlantic
* Commonwealth
* Southeast

Western|

* West Coast
* Mountain states
* Intermountain West
* Great Basin
* Basin and Range Province
* Northwestern United States
* Inland Northwest
* Pacific Northwest
* Southwest
* Old Southwest
* Four Corners

Central|

* Great Lakes
* Tallgrass prairie
* Midwest
* Upper Midwest
* South Central
* Gulf Coast

Southern|

* Deep South
* Old South
* Upland South
* Santa Fe de Nuevo México

* Pacific Coast Ranges
* Oregon Trail
* Mormon Corridor
* Calumet Region
* Llano Estacado
* Third Coast
* Backcountry
* Trans-Mississippi
* Great North Woods
* Great Plains
* Interior Plains
* Great Basin
* Great Basin Desert
* Acadia
* Ozarks
* Ark-La-Tex
* Waxhaws
* Siouxland
* Twin Tiers
* Driftless Area
* Palouse
* Piedmont
* Atlantic coastal plain
* Outer Lands
* Black Dirt Region
* Blackstone Valley
* Piney Woods
* Rocky Mountains
* Mojave Desert
* The Dakotas
* The Carolinas
* Shawnee Hills
* San Fernando Valley
* Tornado Alley
* North Coast
* Lost Coast
* Emerald Triangle
* San Francisco Bay Area
* San Francisco Bay
* North Bay
* East Bay
* Silicon Valley
* Interior Alaska-Yukon lowland taiga
* Gulf of Mexico
* Lower Colorado River Valley
* Sacramento–San Joaquin River Delta
* Yukon–Kuskokwim Delta
* Colville Delta
* Arkansas Delta
* Mobile–Tensaw River Delta
* Mississippi Delta
* Mississippi River Delta
* Columbia River Estuary
* Great Basin
* High Desert
* Monterey Peninsula
* Upper Peninsula of Michigan
* Lower Peninsula of Michigan
* Virginia Peninsula
* Keweenaw Peninsula
* Middle Peninsula
* Delmarva Peninsula
* Alaska Peninsula
* Kenai Peninsula
* Niagara Peninsula
* "Belt" regions
* Bible Belt
* Black Belt
* Corn Belt
* Cotton Belt
* Frost Belt
* Rice Belt
* Rust Belt
* Sun Belt
* Snow Belt

Middle|

| Northern|

* Basin and Range Province
* Baja California Peninsula
* Gulf of California
* Colorado River Delta
* Gulf of Mexico

|

Southern|

* Soconusco
* Tierra Caliente
* La Mixteca
* La Huasteca
* Bajío
* Valley of Mexico
* Mezquital Valley
* Sierra Madre de Oaxaca
* Yucatán Peninsula
* Gulf of Mexico

Central|

* Northern Triangle of Central America
* Western Caribbean Zone
* Isthmus of Panama
* Gulf of Panama
* Pearl Islands
* Azuero Peninsula
* Mosquito Coast

Caribbean|

* Antilles
* Greater Antilles
* Lesser Antilles
* Leeward
* Leeward Antilles
* Windward
* Lucayan Archipelago
* Southern Caribbean
* West Indies

* Aridoamerica
* Mesoamerica
* Oasisamerica
* Anglo
* Latin
* French
* Hispanic
* American Cordillera
* Ring of Fire
* LAC

* v
* t
* e

Regions of Oceania

Australia|

| Australian Capital Territory|

* Australian Capital Territory

|

New South Wales|

* Central Coast
* Central Tablelands
* Central Western Slopes
* Greater Western Sydney
* Hunter
* Mid North Coast
* Northern Rivers
* North West Slopes
* Northern Tablelands
* Riverina
* South Coast
* South West Slopes
* Southern Tablelands
* Western Plains

Northern Territory|

* Arnhem Land
* Barkly Tableland
* Central Australia
* Darwin
* Katherine

Queensland|

* Central West
* Central
* Darling Downs
* Far North
* Gulf Country
* North
* South East
* South West
* Wide Bay–Burnett

South Australia|

* Adelaide Hills
* Barossa Light and Lower North
* Eastern Adelaide
* Eyre Western
* Far North
* Fleurieu and Kangaroo Island
* Limestone Coast
* Murray and Mallee
* Northern Adelaide
* Southern Adelaide
* Western Adelaide
* Yorke and Mid North

Tasmania|

* Central Highlands
* East Coast
* Midlands
* North East
* North West
* Northern
* South West
* Southern
* West Coast

Victoria|

* Barwon South West
* Gippsland
* Grampians
* Greater Melbourne
* Hume
* Loddon Mallee

Western Australia|

* Gascoyne
* Goldfields-Esperance
* Great Southern
* Kimberley
* Mid West
* Peel
* Pilbara
* South West
* Wheatbelt

Melanesia|

* Islands Region
* Bismarck Archipelago
* Solomon Islands
* North Solomon Islands
* Solomon Islands
* Fiji
* New Caledonia
* New Guinea
* Bonis Peninsula
* Papuan Peninsula
* Huon Peninsula
* Huon Gulf
* Bird's Head Peninsula
* Gazelle Peninsula
* Vanuatu

Micronesia|

* Caroline Islands
* Federated States of Micronesia
* Palau
* Kiribati
* Mariana Islands
* Guam
* Northern Mariana Islands
* Marshall Islands
* Nauru
* Wake Island

Polynesia|

* Easter Island
* Hawaiian Islands
* Cook Islands
* French Polynesia
* Austral Islands
* Gambier Islands
* Mangareva Islands
* Marquesas Islands
* Society Islands
* Tuamotus
* Kermadec Islands
* New Zealand
* South Island
* North Island
* Niue
* Pitcairn Islands
* Samoan Islands
* American Samoa
* Independent State of Samoa
* Tokelau
* Tonga
* Tuvalu

* Asia-Pacific
* Ring of Fire

* v
* t
* e

Regions of South America

East|

* Amazon basin
* Atlantic Forest
* Caatinga
* Cerrado

North|

* Caribbean South America
* West Indies
* Los Llanos
* The Guianas
* Amazon basin
* Amazon rainforest
* Gulf of Paria
* Paria Peninsula
* Paraguaná Peninsula
* Orinoco Delta

South|

* Tierra del Fuego
* Patagonia
* Pampas
* Pantanal
* Gran Chaco
* Chiquitano dry forests
* Valdes Peninsula
* Triple Frontier
* Río de la Plata
* Río de la Plata Basin

West|

* Andes
* Tropical Andes
* Wet Andes
* Dry Andes
* Pariacaca mountain range
* Altiplano
* Atacama Desert

* Latin
* Hispanic
* Bolivarian
* American Cordillera
* Ring of Fire
* LAC

* v
* t
* e

Earth's Polar regions of Earth

Antarctic|

* Antarctic Peninsula
* East Antarctica
* West Antarctica
* Eklund Islands
* Ecozone
* Extreme points
* Islands

Arctic|

* Arctic Alaska
* British Arctic Territories
* Canadian Arctic Archipelago
* Finnmark
* Greenland
* Northern Canada
* Northwest Territories
* Nunavik
* Nunavut
* Russian Arctic
* Sakha
* Sápmi
* Yukon
* North American Arctic

* v
* t
* e

Earth's Borders of the oceans

Arctic Ocean|

* Amundsen Gulf
* Barents Sea
* Beaufort Sea
* Chukchi Sea
* East Siberian Sea
* Greenland Sea
* Gulf of Boothia
* Kara Sea
* Laptev Sea
* Lincoln Sea
* Prince Gustav Adolf Sea
* Pechora Sea
* Queen Victoria Sea
* Wandel Sea
* White Sea

Atlantic Ocean|

* Adriatic Sea
* Aegean Sea
* Alboran Sea
* Archipelago Sea
* Argentine Sea
* Baffin Bay
* Balearic Sea
* Baltic Sea
* Bay of Biscay
* Bay of Bothnia
* Bay of Campeche
* Bay of Fundy
* Black Sea
* Bothnian Sea
* Caribbean Sea
* Celtic Sea
* English Channel
* Foxe Basin
* Greenland Sea
* Gulf of Bothnia
* Gulf of Finland
* Gulf of Lion
* Gulf of Guinea
* Gulf of Maine
* Gulf of Mexico
* Gulf of Saint Lawrence
* Gulf of Sidra
* Gulf of Venezuela
* Hudson Bay
* Ionian Sea
* Irish Sea
* Irminger Sea
* James Bay
* Labrador Sea
* Levantine Sea
* Libyan Sea
* Ligurian Sea
* Marmara Sea
* Mediterranean Sea
* Myrtoan Sea
* North Sea
* Norwegian Sea
* Sargasso Sea
* Sea of Åland
* Sea of Azov
* Sea of Crete
* Sea of the Hebrides
* Thracian Sea
* Tyrrhenian Sea
* Wadden Sea

Indian Ocean|

* Andaman Sea
* Arabian Sea
* Bali Sea
* Bay of Bengal
* Flores Sea
* Great Australian Bight
* Gulf of Aden
* Gulf of Aqaba
* Gulf of Khambhat
* Gulf of Kutch
* Gulf of Oman
* Gulf of Suez
* Java Sea
* Laccadive Sea
* Mozambique Channel
* Persian Gulf
* Red Sea
* Timor Sea

Pacific Ocean|

* Arafura Sea
* Banda Sea
* Bering Sea
* Bismarck Sea
* Bohai Sea
* Bohol Sea
* Camotes Sea
* Celebes Sea
* Chilean Sea
* Coral Sea
* East China Sea
* Gulf of Alaska
* Gulf of Anadyr
* Gulf of California
* Gulf of Carpentaria
* Gulf of Fonseca
* Gulf of Panama
* Gulf of Thailand
* Gulf of Tonkin
* Halmahera Sea
* Koro Sea
* Mar de Grau
* Molucca Sea
* Moro Gulf
* Philippine Sea
* Salish Sea
* Savu Sea
* Sea of Japan
* Sea of Okhotsk
* Seram Sea
* Seto Inland Sea
* Shantar Sea
* Sibuyan Sea
* Solomon Sea
* South China Sea
* Sulu Sea
* Tasman Sea
* Visayan Sea
* Yellow Sea

Southern Ocean|

* Amundsen Sea
* Bellingshausen Sea
* Cooperation Sea
* Cosmonauts Sea
* Davis Sea
* D'Urville Sea
* King Haakon VII Sea
* Lazarev Sea
* Mawson Sea
* Riiser-Larsen Sea
* Ross Sea
* Scotia Sea
* Somov Sea
* Weddell Sea

Endorheic basins|

* Aral Sea
* Caspian Sea
* Dead Sea
* Salton Sea

* Book
* Category

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