Sebastes semicinctus

Species of fish

Sebastes semicinctus

Scientific classification
Domain:  | Eukaryota
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Actinopterygii
Order:  | Scorpaeniformes
Family:  | Scorpaenidae
Genus:  | Sebastes
Species:  |

S. semicinctus

Binomial name
Sebastes semicinctus

(C. H. Gilbert, 1897)

Synonyms[1]

* Sebastodes semicinctus Gilbert, 1897

Sebastes semicinctus, the halfbanded rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the Eastern Pacific.

## Taxonomy[edit]

Sebastes semicinctus was first formally described was first formally described as Sebastodes semicinctus in 1897 by the American ichthyologist Charles Henry Gilbert with the type locality given as the Santa Barbara Channel in California.[2] Some authorities place this species in the subgenus Allosebastes.[3] The specific name aemicinctus is a compound of semi meaning “half” and cinctus which means “belt”, presumed to be an allussion to the twodark saddle marks extending from the base of the dorsal fin to below the lateral line.[4]

## Description[edit]

Sebastes semicinctus is a relatively slender-bodied rockfish, its body's depth being between a aquarter and a third of its standard length. The head is long and has a short snout, extremely large eyes and a quite small terminally positioned mouth. The dorsal fin has 13 spines and between 12 and 14 soft rays while the anal fin has 3 spines and 6 to 8 rays. The caudal fin is slightly forked.[5] This is one of the "dwarf" rockfishes[6] attaining a maximum length of 25 cm (9.8 in).[1] This species has 8 weak spines on each side of its head and the space between the eyes is smooth. The overall color is dusky pink on the back, paler silvery pink on the flanks with 2 obvious dark red saddle blotches on the rear half of the body, these darken to brown on the back. The caudal fin has brown streaks and the other fins are pink. There can be a yellow green tint on the back.[7]

## Distribution and habitat[edit]

Sebastes semicinctus is found in the eastern Pacific Ocean along the western coast of North America between Guerrero Negro in Baja California[5] north to Point Pinos in Monterey County in central California. This species is a demersal fish which is found at depths between 58 and 402 m (190 and 1,319 ft).[1] It is found mainly over flat bottoms with soft substrates.[6]

## Biology[edit]

Sebastes semicinctus gathers in large midwater aggregation.[6] They are zooplankton feeders and their prey includes amphipods, copepods, crustacean larva, and krill.[5] Like other rockfishes in the genus Sebastes this species is ovoviviparous, the females give birth to a single brood of larvae each year. Each female can bear from 3,400 to just under 31,000 ooctyes which are fertlised internally in early winter with the eyed larvae being extruded in the following spring.[6]

## References[edit]

1. ^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2021). "Sebastes semicinctus" in FishBase. August 2021 version.
2. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Sebastes". Catalog of Fishes. California Academy of Sciences. Retrieved 10 December 2021.
3. ^ Z. Li; A.K. Gray; M.S. Love; A. Goto; A.J. Gharrett (2007). "Are the Subgenera of Sebastes Monophyletic?" (PDF). Biology, Assessment, and Management of North Pacific Rockfishes. Alaska Sea Grant College Program.
4. ^ Christopher Scharpf & Kenneth J. Lazara, eds. (22 May 2021). "Order Perciformes (Part 8): Suborder Scorpaenoidei: Families Sebastidae, Setarchidae and Neosebastidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 10 December 2021.
5. ^ a b c "Halfbanded rockfish". Mexican Fish. Retrieved 10 December 2021.
6. ^ a b c d Milton S. Love; Pamela Morris; Merritt McCrae; Robson Collins (1990). "Life History Aspects of 19 Rockfish Species (Scorpaenidae: Sebastes) from the Southern California Bight" (PDF). NOAA Technical Report. NMFS87.
7. ^ J.W. Orr; M.A. Brown; D.C. Baker (1998). "AFSC Guide to Rockfishes (Scorpaenidae) of the Genera Sebastes, Sebastolobus and Adelosebastes of the Northeast Pacific Ocean" (PDF). NOAA Technical Memorandum. NMFS-AFSC-95.

## External links[edit]

* Media related to Sebastes semicinctus at Wikimedia Commons
* Data related to Sebastes semicinctus at Wikispecies

* v
* t
* e

Extant Sebastidae species (rockfish)

Adelosebastes|

Adelosebastes latens

Helicolenus|

* Helicolenus alporti
* Helicolenus avius
* Bigeye sea perch (H. barathri)
* Blackbelly rosefish (H. dactylopterus)
* Helicolenus fedorovi
* Hilgendorf's saucord (H. hilgendorfii)
* Helicolenus lahillei
* Helicolenus lengerichi
* Helicolenus mouchezi
* Red gurnard perch (H. percoides)

Hozukius|

* Hozukius emblemarius
* Hozukius guyotensis

Sebastes|

* Rougheye rockfish (S. aleutianus)
* Pacific ocean perch (S. alutus)
* Kelp rockfish (S. atrovirens)
* Brown rockfish (S. auriculatus)
* Aurora rockfish (S. aurora)
* Redbanded rockfish (S. babcocki)
* Sebastes baramenuke
* Shortraker rockfish (S. borealis)
* Silvergray rockfish (S. brevispinis)
* Cape Redfish (S. capensis)
* Gopher rockfish (S. carnatus)
* Copper rockfish (S. caurinus)
* Japanese white seaperch (S. cheni)
* Greenspotted rockfish (S. chlorostictus)
* Black-and-yellow rockfish (S. chrysomelas)
* Dusky rockfish (S. ciliatus)
* Starry rockfish (S. constellatus)
* Cortez rockfish (S. cortezi)
* Darkblotched rockfish (S. crameri)
* Calico rockfish (S. dallii)
* Deacon rockfish (S. diaconus)
* Splitnose rockfish (S. diploproa)
* Greenstriped rockfish (S. elongatus)
* Puget Sound rockfish (S. emphaeus)
* Swordspine rockfish (S. ensifer)
* Widow rockfish (S. entomelas)
* Pink rockfish (S. eos)
* Buccaneer rockfish (S. exsul)
* Atlantic redfish (S. fasciatus)
* Sebastes flammeus
* Yellowtail rockfish (S. flavidus)
* Bronzespotted rockfish (S. gilli)
* Gray rockfish (S. glaucus)
* Chilipepper rockfish (S. goodei)
* Rosethorn rockfish (S. helvomaculatus)
* Squarespot rockfish (S. hopkinsi)
* Sebastes hubbsi
* Sebastes ijimae
* Japanese red seaperch (S. inermis)
* Sebastes iracundus
* Sebastes itinus
* Shortbelly rockfish (S. jordani)
* Sebastes joyneri
* Sebastes kawaradae
* Sebastes kiyomatsui
* Sebastes koreanus
* Freckled rockfish (S. lentiginosus)
* Cowcod (S. levis)
* Sebastes longispinis
* Mexican rockfish (S. macdonaldi)
* Atlantic redfish (S. marinus)
* Quillback rockfish (S. maliger)
* Red bream (S. matsubarae)
* Black rockfish (S. melanops)
* Semaphore rockfish (S. melanosema)
* Blackspotted rockfish (S. melanostictus)
* Blackgill rockfish (S. melanostomus)
* Atlantic redfish (S. mentella)
* Vermilion rockfish (S. miniatus)
* Sebastes minor
* Whitespeckled rockfish (S. moseri)
* Blue rockfish (S. mystinus)
* China rockfish (S. nebulosus)
* Tiger rockfish (S. nigrocinctus)
* Sebastes nivosus
* Red perch (S. norvegicus)
* Sebastes notius
* Sebastes oblongus
* Patagonian redfish (S. oculatus)
* Speckled rockfish (S. ovalis)
* Sebastes owstoni
* Sebastes pachycephalus
* Bocaccio rockfish (S. paucispinis)
* Sebastes peduncularis
* Chameleon rockfish (S. phillipsi)
* Canary rockfish (S. pinniger)
* Northern rockfish (S. polyspinis)
* Redstripe rockfish (S. proriger)
* Grass rockfish (S. rastrelliger)
* Yellowmouth rockfish (S. reedi)
* Rosy rockfish (S. rosaceus)
* Greenblotched rockfish (S. rosenblatti)
* Yelloweye rockfish (S. ruberrimus)
* Flag rockfish (S. rubrivinctus)
* Dwarf-red rockfish (S. rufinanus)
* Bank rockfish (S. rufus)
* Stripetail rockfish (S. saxicola)
* Korean rockfish (S. schlegelii)
* Sebastes scythropus
* Halfbanded rockfish (S. semicinctus)
* Olive rockfish (S. serranoides)
* Treefish (S. serriceps)
* Pinkrose rockfish (S. simulator)
* Blackmouth rockfish (S. sinensis)
* Sebastes spinorbis
* Sebastes steindachneri
* Sebastes swifti
* Ezo seaperch (S. taczanowskii)
* Sebastes thompsoni
* Sebastes trivittatus
* Honeycomb rockfish (S. umbrosus)
* Sebastes variabilis
* Harlequin rockfish (S. variegatus)
* Sebastes varispinis
* Japanese black seaperch (S. ventricosus)
* Norway redfish (S. viviparus)
* Fox jacopever (S. vulpes)
* Sebastes wakiyai
* Pygmy rockfish (S. wilsoni)
* Sharpchin rockfish (S. zacentrus)
* Sebastes zonatus

Sebastiscus|

* Sebastiscus albofasciatus
* False kelpfish (S. marmoratus)
* Sebastiscus tertius

Sebastolobus|

* Shortspine thornyhead (S. alascanus)
* Longspine thornyhead (S. altivelis)
* Broadbanded thornyhead (S. macrochir)

Trachyscorpia|

* Deepsea Scorpionfish (T. carnomagula)
* Trachyscorpia cristulata
* Cape rockfish (T. eschmeyeri)
* Stylish Scorpionfish (T. longipedicula)
* Trachyscorpia osheri
* Ecuadorian Deep-sea Scorpionfish (T. verai)

Taxon identifiers

Sebastes semicinctus|

* Wikidata: Q3101296
* BOLD: 160593
* FishBase: 4001
* GBIF: 2335564
* iNaturalist: 317368
* IRMNG: 10154982
* ITIS: 166762
* NCBI: 320568
* Observation.org: 796476
* OBIS: 274851
* WoRMS: 274851

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