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Angular roughshark (Oxynotus centrina) fish species and information / pictures of Angular roughshark - Oxynotus centrina

Angular roughshark (Oxynotus centrina) fish species information

Scientific Name
Oxynotus centrina

Common Name
Angular roughshark

Biology
Found on the outer continental shelf and upper slope (Ref. 5578). Depth range from 60-660 m (Ref. 247) and from 549-777 m in the eastern Ionian Sea (Ref. 56504). Feeds on polychaetes (Ref. 247) and sipunculids (apparenly a suction feeder which mainly feeds on worm-like prey), which are rapidly digested, and the rapid gastric evacuation could partially explain the vacuity of several guts; teleosts, crustaceans and echinoderms are considered as accessory prey items, thus recorded predation on egg cases of the smallspotted catshark Scyliorhinus canicula remains an occasional phenomenon (Ref. 81816). Ovoviviparous (Ref. 205). Utilized for fishmeal, oil, and smoked and dried salted for human consumption (Ref. 247).

Classification

Classified By
Linnaeus, 1758
Class
Sharks and Rays (Elasmobranchii)
Order
Bramble, Sleeper and Dogfish sharks (Squaliformes)
Family
Rough sharks (Oxynotidae)

Distribution

Region
Eastern Atlantic
Distribution
Eastern Atlantic: Bay of Biscay and Mediterranean Sea to Senegal, north to Cornwall, England (apparently as a stray). Compagno et al. (Ref. 5578) reports this species as ranging south to Cape Point, South Africa but Springer 1990 (Ref. 10718) notes Bass et al. 1976 as considering specimens from Walvis Bay distinct from Oxynotus centrina calling attention to the considerably greater distance between dorsal fins in Mediterranean specimens than in specimens taken south of the equator.
Range
70°N - 37°S, 17°W - 34°E

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
40 m
Depth To - meters
777 m
Zone
bathydemersal
Environment
Marine; bathydemersal; depth range 40 - 777 m (Ref. 56504)
Trophic Level
3.061 s.e. 0.26 Based on food items.
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
150 cm
Common Length
55.0 cm
Phylogenetic Diversity Index
PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: minor commercial
Vulnerability
Very high vulnerability (80 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (Fec=7)
Threat To Humans
  Harmless
IUCN Red List Status
  Vulnerable (VU) (A2bcd+4bd)