Alepocephalus tenebrosus  Gilbert, 1892

California slickhead
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Alepocephalus tenebrosus   AquaMaps   Data sources: GBIF OBIS
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Image of Alepocephalus tenebrosus (California slickhead)
Alepocephalus tenebrosus
Picture by Van Orden, W.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Osmeriformes (Smelts) > Alepocephalidae (Slickheads)
Etymology: Alepocephalus: Greek, alepos, alepidotos = without scales + Greek, kephale = head (Ref. 45335);  tenebrosus: tenebrosus meaning dark or gloomy, coming from the great depths where not even shadows occur..   More on author: Gilbert.

Environment / Climate / Range Ecology

Marine; bathydemersal; depth range 46 - 5500 m (Ref. 4525).   Deep-water

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 61.0 cm TL male/unsexed; (Ref. 2850)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 15-18; Anal spines: 0; Anal soft rays: 15 - 18; Vertebrae: 51 - 55. Branchiostegal rays: 6-7.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri

North Pacific: Bering Sea to at least California, USA. Southeast Pacific: Chile (Ref. 35724).

Biology     Glossary (e.g. epibenthic)

Found near or on bottoms (Ref. 2850). Feed on small crustaceans. Regarded as inferior food because of its soft, fleshy texture (Ref. 4525). Oviparous, with mesopelagic and bathypelagic larvae (Ref. 35724).

Main reference Upload your references | References | Coordinator | Collaborators

Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 336 p.

IUCN Red List Status (Ref. 90363)

  Not Evaluated 

Threat to humans

  Harmless




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FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00610 (-0.22499 - 0.23719), b=3.08 (2.95 - 3.20), based on LWR estimates for this family-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.5   ±0.50 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.30).
Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100) .
Price category (Ref. 80766):   Unknown.