Blacktailed spurdog (Squalus melanurus) fish species and information / pictures of Blacktailed spurdog - Squalus melanurus

Blacktailed spurdog (Squalus melanurus) fish species information

Scientific Name
Squalus melanurus

Common Name
Blacktailed spurdog

Biology
Dorsal spines (total): 2; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Conspicuous black tips on dorsal fins, black dorsal caudal margin, black ventral caudal lobe (Ref. 247).

Classification

Classified By

Fourmanoir & Rivaton, 1979

Class

Sharks and Rays (Elasmobranchii)

Order

Bramble, Sleeper and Dogfish sharks (Squaliformes)

Family

Dogfish sharks (Squalidae)

Distribution

Region

Western Central Pacific

Distribution

Western Central Pacific: New Caledonia.

Range

21°S - 23°S, 166°E - 168°E

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

320 m

Depth To - meters

340 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 320 - 340 m (Ref. 31367)

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

75 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 vulnerability (60 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Fec=1)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)