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Alepocephalus rostratus  Risso, 1820

Risso's smooth-head
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Native range | All suitable habitat | Point map | Year 2100
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Alepocephalus rostratus   AquaMaps   Data sources: GBIF OBIS
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Image of Alepocephalus rostratus (Risso\
Alepocephalus rostratus
Picture by Wirtz, P.

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).   More on author: Risso.

Environment / Climate / Range Ecology

Marine; bathydemersal; depth range 300 - 2250 m (Ref. 28822).   Deep-water, preferred 18°C (Ref. 107945); 64°N - 17°S, 22°W - 22°E (Ref. 57317)

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

Eastern Atlantic: northeast Atlantic and western Mediterranean to Cape Verde (Ref. 4736); Morocco to Cameroon, then from Angola to Namibia (Ref. 4460).

Length at first maturity / Size / Weight / Age

Maturity: Lm 27.7  range ? - ? cm
Max length : 50.0 cm SL male/unsexed; (Ref. 4460); max. reported age: 23 years (Ref. 32893)

Short description Morphology | Morphometrics

Dorsal spines (total): 16 - 20; Anal spines: 17-20

Biology     Glossary (e.g. epibenthic)

Found over soft bottoms (Ref. 4736). Feeds on pelagic crustaceans like euphausiids, decapods and mysids (Ref. 27637).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Markle, D.F., 1981. Family Alepocephalidae. In W. Fischer, G. Bianchi and W.B. Scott (eds.) FAO species identification sheets for fishery purposes. Eastern Central Atlantic; fishing areas 34, 47 (in part). Department of Fisheries and Oceans Canada and FAO. vols. 1-7. pag. var. (Ref. 2719)

IUCN Red List Status (Ref. 115185)

  Least Concern (LC) 

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00188 - 0.00556), b=3.17 (3.01 - 3.33), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  3.7   ±0.2 se; Based on diet studies.
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High to very high vulnerability (70 of 100) .