Risso's smooth-head (Alepocephalus rostratus) fish species and information / pictures of Risso's smooth-head - Alepocephalus rostratus

Risso's smooth-head (Alepocephalus rostratus) fish species information

Scientific Name
Alepocephalus rostratus

Common Name
Risso's smooth-head

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

Classification

Classified By
Risso, 1820
Class
Ray-finned fishes (Actinopterygii)
Order
Smelts (Osmeriformes)
Family
Slickheads (Alepocephalidae)

Distribution

Region
Eastern Atlantic
Distribution
Eastern Atlantic: northeast Atlantic and western Mediterranean to Cape Verde (Ref. 4736); Morocco to Cameroon, then from Angola to Namibia (Ref. 4460).
Range
64°N - 17°S, 166°E - 22°E

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
300 m
Depth To - meters
2250 m
Zone
bathydemersal
Environment
Marine; bathydemersal; depth range 300 - 2250 m (Ref. 28822)
Trophic Level
3.48 s.e. 0.49 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
50.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest
Vulnerability
High to very high vulnerability (70 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated