Longnose velvet dogfish (Centroscymnus crepidater) fish species and information / pictures of Longnose velvet dogfish - Centroscymnus crepidater

Longnose velvet dogfish (Centroscymnus crepidater) fish species information

Scientific Name
Centroscymnus crepidater

Common Name
Longnose velvet dogfish

Biology
A fairly common species found on continental and insular slopes (Ref. 6871), on or near the bottom (Ref. 5578). Feeds mainly on fish and cephalopods (Ref. 6871). Ovoviviparous (Ref. 205), with 4-8 young in a litter (Ref. 6871), born at 28-35 cm (Ref. 26346). The flesh is high in mercury; utilized as fishmeal and source of squalene (Ref. 6871).

Classification

Classified By

Barbosa du Bocage & de Brito Capello, 1864

Class

Sharks and Rays (Elasmobranchii)

Order

Bramble, Sleeper and Dogfish sharks (Squaliformes)

Family

Sleeper sharks (Somniosidae)

Distribution

Region

Eastern Atlantic

Distribution

Eastern Atlantic: Iceland, Faeroe Islands along Atlantic slope to Portugal, Senegal, Madeira, Gabon to Democratic Republic of the Congo, Namibia. Indian Ocean: Aldabra and the Travancore coast of India. Western Pacific: New South Wales, Australia and New Zealand. Southeast Pacific: northern Chile.

Range

64°N - 45°S

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

230 m

Depth To - meters

1500 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 230 - 1500 m (Ref. 26346)

Trophic Level

4.16 s.e. 0.56 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

130 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5156 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 (78 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Fec=4-8, tmax=54, tm=9-15)

Threat To Humans

Poisonous to eat (Ref. 6871)

IUCN Red List Status

Least Concern (LC)