Longsnout dogfish (Deania quadrispinosa) fish species and information / pictures of Longsnout dogfish - Deania quadrispinosa

Longsnout dogfish (Deania quadrispinosa) fish species information

Scientific Name
Deania quadrispinosa

Common Name
Longsnout dogfish

Biology
A rare (Ref. 26346) and little-known species found on outer continental shelves and upper slopes (Ref. 247). Feeds on bony fishes (Ref. 247). Ovoviviparous (Ref. 50449).

Classification

Classified By

McCulloch, 1915

Class

Sharks and Rays (Elasmobranchii)

Order

Bramble, Sleeper and Dogfish sharks (Squaliformes)

Family

Gulper sharks (Centrophoridae)

Distribution

Region

Southeast Atlantic

Distribution

Southeast Atlantic: off Namibia and off Algoa Bay, South Africa. Indo-West Pacific: off southern Mozambique and Natal, South Africa; Australia and New Zealand (Ref. 6871).

Range

9°S - 54°S, 12°E - 172°W

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

150 m

Depth To - meters

1360 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 150 - 1360 m (Ref. 44037), usually 400 - 820 m (Ref. 6871)

Trophic Level

4.5 s.e. 0.80 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

115 cm

Common Length

Unknown 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

High to very high vulnerability (72 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be

Threat To Humans

Harmless

IUCN Red List Status

Near Threatened (NT)