Jocks Lagoon

Lagoon in Tasmania, Australia

Jocks Lagoon

Jocks Lagoon

Location in Tasmania

Coordinates| 41°20′24″S 148°18′00″E﻿ / ﻿41.34000°S 148.30000°E﻿ / -41.34000; 148.30000
Type| Dystrophic
Basin countries| Australia
Designation| Ramsar site
Max. length| 650 m (2,130 ft)
Max. width| 150 m (490 ft)
Surface area| 18 hectares (44 acres)
Max. depth| 2–3 m (6 ft 7 in – 9 ft 10 in)

Ramsar Wetland

Designated| 16 November 1982
Reference no.| 258[1]

Jocks Lagoon is an 18-hectare (44-acre) freshwater coastal lagoon in north-eastern Tasmania, Australia. In 1982, it was designated as a wetland of international importance under the Ramsar Convention.[2]

## Description

[edit]

The lagoon is located approximately 5 kilometres (3.1 mi) south-east of the town of St Helens. It lies partly on private land and partly at the southern end of the St Helens Point conservation area. One of a chain of wetlands along St Helens Point, it is 200 to 300 metres (660 to 980 ft) inland from the coast, near a dunefield. About 650 metres (2,130 ft) long and 150 metres (490 ft) wide, it is dystrophic, with tannin-stained, low-nutrient, and acidic waters. Water levels fluctuate with rainfall and reach a depth of 2 to 3 metres (6 ft 7 in to 9 ft 10 in).

### Vegetation

[edit]

While the northern half of the lagoon is mainly open water, the southern half is mostly covered with emergent rushes and sedges. Threatened plants recorded from the site, or suspected to be present, include jointed twigsedge, slender twigsedge, zigzag bogsedge, yellow onion orchid and erect marshflower.[3]

A total of 51 vascular plant species were recorded from the lagoon by a recent study. Of that total, half were species that grow in swamps or damp areas; vegetation common to dry areas, coastal woodland and Melaleuca forest made up the remainder of the list. The lagoon's aquatic flora is equally rich. Several rare species occur there.[3]

## Ramsar criteria

[edit]

Although Jocks Lagoon is listed as a Ramsar Site, it does not meet all four criteria that determine a site as a Ramsar Site. The lagoon does not meet criterion four, which states that a Ramsar Site is one that "supports species at critical stages or provides refuge in adverse conditions."[3]

## See also

[edit]

* Australia portal
* Environment portal

* List of Ramsar sites in Australia
* List of lakes in Tasmania

## References

[edit]

1. ^ "Jocks Lagoon". Ramsar Sites Information Service. Retrieved 25 April 2018.
2. ^ "Jocks Lagoon". Ramsar Convention. 16 November 1982. Retrieved 12 August 2015.
3. ^ a b c Newall, P. R.; Lloyd, L. N.; Atchison, E. E. (2011). Ecological Character Description for the Jocks Lagoon Ramsar Site (PDF). Lloyd Environmental Project Report LE0930. Canberra: Department of Sustainability, Environment, Water, Population and Communities, Australian Government.

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Ramsar sites in Australia

Australian Capital Territory|

* Ginini Flats

New South Wales|

* Blue Lake
* Central Murray Forests
* Fivebough and Tuckerbil Swamps
* Gwydir Wetlands
* Hunter Estuary Wetlands
* Lake Pinaroo
* Little Llangothlin Lagoon
* Macquarie Marshes
* Myall Lakes
* Narran Wetlands
* Paroo Wetlands
* Towra Point

Northern Territory|

* Cobourg Peninsula
* Kakadu National Park

Queensland|

* Bowling Green Bay
* Currawinya Lakes
* Great Sandy Strait
* Moreton Bay
* Shoalwater Bay

South Australia|

* Banrock Station Wetland Complex
* Bool and Hacks Lagoons
* Coongie Lakes
* Coorong and Lakes Alexandrina and Albert Wetland
* Piccaninnie Ponds
* Riverland

Tasmania|

* Apsley Marshes
* Cape Barren Island east coast lagoons
* Interlaken Lakeside Reserve
* Jocks Lagoon
* Lavinia
* Little Waterhouse Lake
* Logan Lagoon
* Lower Ringarooma River
* Moulting Lagoon
* Pittwater–Orielton Lagoon

Victoria|

* Barmah Forest
* Corner Inlet
* Edithvale-Seaford Wetlands
* Gippsland Lakes
* Gunbower Forest
* Hattah-Kulkyne Lakes
* Kerang Wetlands
* Lake Albacutya
* Port Phillip Bay and Bellarine Peninsula
* Western District Lakes
* Western Port Bay

Western Australia|

* Becher Point Wetlands
* Eighty Mile Beach
* Forrestdale and Thomsons Lakes
* Lake Gore
* Lake Warden System
* Lakes Argyle and Kununurra
* Muir-Byenup System
* Ord River Floodplain
* Peel-Yalgorup System
* Roebuck Bay
* Toolibin Lake
* Vasse-Wonnerup System

External territories|

* Ashmore Reef
* Coral Sea Reserves
* The Dales (Christmas Island)
* Elizabeth and Middleton Reefs
* Hosnies Spring (Christmas Island)
* Pulu Keeling

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East Coast region of Tasmania, Australia

Settlements|

* Bicheno
* Binalong Bay
* Coles Bay
* Dunalley
* Fingal
* Orford
* Scamander
* St Helens
* St Marys
* Swansea
* Triabunna

Governance
former|

* Lyons (federal)
* Lyons (state)
* McIntyre (state, legislative council)
* Prosser (state, legislative council)
* Break O'Day Council
* Glamorgan–Spring Bay Council
* Sorell Council

Mountains|

* The Hazards

|

Protected areas,
parks and reserves|

* Freycinet National Park‎
* Maria Island National Park
* Mount William National Park

* Friendly Beaches Reserve

Harbours, bays, inlets and estuaries|

* Bay of Fires
* Great Oyster Bay
* Honeymoon Bay
* Marion Bay

Landmarks|

| Natural|

* Forestier Peninsula
* Freycinet Peninsula
* Jocks Lagoon
* Orielton Lagoon
* Tasman Peninsula

|

Man-made|

* Denison Canal
* St Helens Airport

People of note|

* Nicolas Baudin
* John Henry Cox
* René Maugé

Islands|

| Maria Island Group|

* Ile du Nord
* Lachlan
* Maria

|

Schouten Island Group|

* Governor
* des Phoques
* Picnic
* Schouten
* Taillefer Rocks

Books and newspapers|

* Tasmania's offshore islands

Flora, fauna, and fishlife|

* St Helens Important Bird Area

Bioregions|

* Ben Lomond (bioregion)
* South East (bioregion)

* Category
* Commons

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Lakes and other bodies of water in Tasmania, Australia

Coastal lagoons
and lakes|

* Bronte
* Dulverton
* Jocks
* Orielton
* Little Waterhouse

Freshwater|

* Beatrice
* Dora
* Edgar
* Flannigan
* Great
* Meston
* Pedder (originally natural; since flooded)
* St Clair

Glacial|

* Dove
* Selina
* Westwood

Salt|

* Fidler (Meromictic)

Man-made reservoirs|

* Burbury
* Gordon
* Mackenzie
* Mackintosh
* Margaret
* Murchison
* Pedder (originally natural; since flooded)
* Pieman
* Rosebery

Lakes portal

41°20′40″S 148°18′30″E﻿ / ﻿41.34444°S 148.30833°E﻿ / -41.34444; 148.30833
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