Animalia > Chordata > Actinopterygii > Scorpaeniformes > Sebastidae > Sebastolobus > Sebastolobus alascanus

Sebastolobus alascanus (Channel rockcod; Idiotfish; Rock cod; Shortspine channel rockfish; Shortspine thornyhead; Spinycheek rockfish)

Synonyms: Sebastodes alascanus
Language: Heiltsuk; Japanese; Mandarin Chinese; Polish; Russian; Spanish

Wikipedia Abstract

The shortspine thornyhead (Sebastolobus alascanus) is a species of fish in the Sebastidae family. It is sometimes referred to as the "idiot fish" or "idiot cod" due to its large oversize head/eyes. It is found in Canada, Russia, and the United States. Adult S. alascanus live predominantly in the oxygen minimum zone (OMZ), and thus require specific adaptations/exaptations in order to overcome the problems posed by the extremely low levels of oxygen saturation. Allowing for an increased ventilation frequency during exposure to progressively hypoxic conditions, as compared to its more shallow relative Scorpaena guttata, enables S. alascanus to compensate for the inherent low concentrations of oxygen in the OMZ. Further, heightened levels of lactate dehydrogenase, specifically the anaerobic is
View Wikipedia Record: Sebastolobus alascanus

Endangered Species

Status: Endangered
View IUCN Record: Sebastolobus alascanus


Adult Weight [1]  2.80 lbs (1.27 kg)
Maximum Longevity [2]  115 years

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Aleutian Islands Biosphere Reserve 2720489 Alaska, United States    
Gwaii Haanas National Park Reserve II 366714 British Columbia, Canada
Pacific Rim National Park Reserve II 137900 British Columbia, Canada

Prey / Diet

Anonyx nugax[3]
Argis ovifer (spliteye argid)[3]
Atheresthes stomias (Turbot)[4]
Bathyagonus nigripinnis (Blackfin poacher)[3]
Bathyraja aleutica (Aleutian skate)[3]
Chionoecetes bairdi (southern Tanner crab)[3]
Chionoecetes tanneri (grooved Tanner crab)[3]
Clupea pallasii (Pacific herring)[4]
Cololabis saira (Skipper)[4]
Erimacrus isenbeckii (hair crab)[3]
Eualus avinus (beaked eualid)[3]
Eualus biunguis (deepsea eualid)[3]
Euphausia pacifica (Pacific krill)[4]
Gadus chalcogrammus (Whiting)[3]
Glyptocephalus zachirus (Witch)[4]
Holmesiella anomala[3]
Icelinus borealis (Comb sculpin)[3]
Lithodes aequispinus (golden king crab)[3]
Lithodes couesi (scarlet king crab)[3]
Lycodes brevipes (Shortfin eelpout)[3]
Malacocottus zonurus (Bartail sculpin)[3]
Mallotus villosus (Capelin)[3]
Merluccius productus (Whiting)[4]
Meterythrops robusta[3]
Neocrangon communis (gray shrimp)[3]
Oregonia gracilis (graceful decorator crab)[3]
Pandalus borealis (northern shrimp)[3]
Pandalus jordani (ocean shrimp)[3]
Pandalus montagui (Aesop shrimp)[3]
Pasiphaea pacifica (Pacific glass shrimp)[4]
Pleurogrammus monopterygius (Atka mackerel)[3]
Protomyctophum thompsoni (Bigeye lanternfish)[3]
Pseudomma truncatum[3]
Sarritor frenatus (Sawback poacher)[3]
Sebastolobus alascanus (Channel rockcod)[3]
Thysanoessa spinifera[4]
Triglops scepticus (Spectacled sculpin)[3]


Anoplopoma fimbria (Skil)[3]
Atheresthes evermanni (Kamchatka flounder)[3]
Atheresthes stomias (Turbot)[3]
Gadus chalcogrammus (Whiting)[3]
Gadus macrocephalus (Pacific cod)[3]
Hemitripterus bolini (Bigmouth sculpin)[5]
Hippoglossus stenolepis (Pacific halibut)[3]
Raja rhina (Longnose skate)[3]
Sebastolobus alascanus (Channel rockcod)[3]
Zalophus californianus (California Sealion)[3]
Zalophus japonicus (Japanese Sealion)[3]
Zalophus wollebaeki (Galapagos Sea Lion)[3]


Parasitized by 
Echinorhynchus sebastolobi[6]
Microcotyle sebastis[6]
Steringophorus furciger[6]


Alaska (USA); California Current; Canada; East Bering Sea; Gulf of Alaska; Japan; Kuroshio Current; Mexico; North Pacific: Sea of Okhotsk north to the Navarin Canyon in the Bering Sea and from Stalemate Bank and Ulm Plateau in the Aleutian Islands southeast to Cedros Island, Baja California, Mexico. Reported from Japan (Ref. 559).; Pacific Ocean; Pacific, Eastern Central; Pacific, Northeast; Pacific, Northwest; Russian Federation; Sea of Japan; Sea of Okhotsk; USA (contiguous states); West Bering Sea;



Attributes / relations provided by
1de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
2Frimpong, E.A., and P. L. Angermeier. 2009. FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
3Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
4Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Forage species in predator diets: synthesis of data from the California Current. Ecological Informatics 29(1): 45-56. Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Data from: Forage species in predator diets: synthesis of data from the California Current. Dryad Digital Repository.
5Life history traits of sculpins in the eastern Bering Sea and Aleutian Islands, Todd T. TenBrink and Kerim Y. Aydin, NPRB Project 628 Final Report (2009)
6Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
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Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access