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FishBase Names Scientific source: Integrated Taxonomic Information System Supported by National Biological Information Infrastructure National Science Foundation go to Discover Life's Facebook group Following modified from FishBase    Top | See original http://www.fishbase.org/Summary/speciesSummary.php?genusname=Somniosus&speciesname=pacificus ---> http://52.67.158.155/Summary/speciesSummary.php?genusname=Somniosus&speciesname=pacificus http://52.67.158.155/Summary/speciesSummary.php?genusname=Somniosus&speciesname=pacificus ---> https://fishbase.net.br/Summary/speciesSummary.php?genusname=Somniosus&speciesname=pacificus https://fishbase.net.br/Summary/speciesSummary.php?genusname=Somniosus&speciesname=pacificus ---> https://fishbase.net.br/summary/Somniosus-pacificus.html You can sponsor this page Common name (e.g. trout) contains begins with begins with ends with is Genus + Species (e.g. Gadus morhua) About this page More Info Plus d'info Mais info Languages Arabic Bahasa/Malay Bangla Chinese(Si) Chinese(Tr) Deutsch English Español Farsi Français Greek Hindi Italiano Japanese Lao Nederlands Português(Br) Português(Pt) Russian Swedish Thai Vietnamese User feedbacks Comments &   Corrections Fish Forum Guest Book Facebook Citation Uploads Attach website Upload photo Upload video Upload   references Fish Watcher Related species Species in    Somniosus Species in    Somniosidae - Classification - Somniosidae Squaliformes Elasmobranchii Chordata Animalia Somniosus pacificus Bigelow & Schroeder , 1944 Pacific sleeper shark Add your observation in Fish Watcher Native range | All suitable habitat | Point map | Year 2050 This map was computer-generated and has not yet been reviewed. Somniosus pacificus   AquaMaps   Data sources: GBIF OBIS Upload your photos  and  videos Pictures | Google image Somniosus pacificus Juvenile picture by Gadig, O.B.F. Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa Elasmobranchii (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Somniosidae (Sleeper sharks) Etymology: Somniosus: Latin for sleepy, reflecting Lesueur’s surmise that these sharks are slow or sluggish because of their relatively small fins (hence the name sleeper sharks). ( See ETYFish ) ;   pacificus: -icus (L.), belonging to: the Pacific Ocean (specifically, the North Pacific), where it occurs (also in Arctic Ocean). ( See ETYFish ) . Environment: milieu / climate zone / depth range / distribution range Ecology Marine; benthopelagic; depth range 0 - 2205 m (Ref. 119696 ). Boreal; 72°N - 23°N, 121°E - 110°W Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri North Pacific and Arctic: Taiwan to Japan and Kuril Islands, Sea of Okhotsk, southeastern Kamchatka, Commander and Aleutian Islands, and southern Baja California to Gulf of Alaska, Bering Sea, Chukchi Sea and Beaufort Sea. Size / Weight / Age Maturity: L m   ?   range ? - ? cm Max length : 440 cm TL male/unsexed; (Ref. 247 ); 430.0 cm TL (female) Short description Morphology | Morphometrics Dorsal spines (total): 0; Anal spines : 0; Anal soft rays : 0. Diagnosis: Somniosus pacificus differs from S. antarcticus by the following characters: interdorsal space about 70% of prebranchial length (vs. 80%); height of first dorsal fin about 3.7% of precaudal length (PCL) (vs. 3.0%); height of second dorsal fin about 3.4% of PCL (vs. 2.9%); number of turns in spiral valve 32-37 (mode 33) (vs. 36-41, mode 39); precaudal vertebrae 28-30 (mode 29) (vs. 30-31, mode 30) (Ref. 50224 ). Biology     Glossary (e.g. epibenthic) Demersal and mesobenthopelagic (Ref. 119696 ); found on continental shelves and slopes (Ref. 247 ). At high latitudes, occasionally occurs in littoral and even intertidal areas; in lower latitudes it may never come to the surface and ranges down to at least 2,000 m (Ref. 247 ), reported to about 2,205 m in the Hawaiian Is. as recorded by camera arrays (Ref. 119696 ). Feeds on bottom animals such as fishes, octopi, squids, crabs and tritons; also harbor seals and carrion (Ref. 247 ). Ovoviviparous (Ref. 205 ), with 300 pups in a litter (Ref. 247 ), length at birth about 42 cm or less (Ref. 26346 ). The flesh contains a type of toxin which, when eaten, produces symptoms of drunkenness (Ref. 583 ). Possibly reaches lengths greater than 700 cm (Ref. 247 ). It is of limited importance in fisheries, with older small-scale commercial harvests reported in southern areas; and based on its population dynamics it can be sensitive to overfishing (Ref. 117245 ). Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae Probably ovoviviparous (Ref. 247 ). Size at birth 42 cm or less (Ref. 26346 ). Distinct pairing with embrace (Ref. 205 ). Main reference Upload your references | References | Coordinator | Collaborators Yano, K., J.D. Stevens and L.J.V. Compagno , 2004. A review of the systematics of the sleeper shark genus Somniosus with redescriptions of Somniosus ( Somniosus ) antarcticus and Somniosus ( Rhinoscymnus ) longus (Squaliformes: Somniosidae). Ichthyol. Res. 51:360-373. (Ref. 50224 ) IUCN Red List Status (Ref. 130435 )   Near Threatened (NT)  (A2bd); Date assessed: 29 August 2019 CITES Not Evaluated CMS (Ref. 116361 ) Not Evaluated Threat to humans   Harmless (Ref. 6871 ) Human uses Fisheries: of no interest FAO - Fisheries: landings ; Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us More information Countries FAO areas Ecosystems Occurrences Introductions Stocks Ecology Diet Food items Food consumption Ration Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Spawning aggregation Fecundity Eggs Egg development Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment Abundance BRUVS References Aquaculture Aquaculture profile Strains Genetics Electrophoreses Heritability Diseases Processing Nutrients Mass conversion Collaborators Pictures Stamps, Coins Misc. Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision Tools E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY | Special reports Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets Download XML Summary page | Point data | Common names | Photos Internet sources AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Fisheries: landings ; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | OceanAdapt | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoobank | Zoological Record Estimates based on models Preferred temperature (Ref. 123201 ): 0.5 - 4.5, mean 2.3 °C (based on 400 cells). Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5313   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00575 (0.00316 - 0.01049), b=3.09 (2.93 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic level (Ref. 69278 ):  4.4   ±0.4 se; based on diet studies. Resilience (Ref. 120179 ):  Low, minimum population doubling time 4.5 - 14 years (Fec=300; assuming tm<=10). Fishing Vulnerability (Ref. 59153 ):  Very high vulnerability (90 of 100). Climate Vulnerability (Ref. 125649 ):  Moderate vulnerability (38 of 100). Comments & Corrections Back to Search Random Species Back to Top Accessed through: Not available FishBase mirror site : Laguna, Philippines Page last modified by : mrius-barile Updated: 2024-04-25 04:27:56 gmt FishBase | Search | All Living Things | Top © Designed by The Polistes Corporation