Sawback angelshark (Squatina aculeata) fish species and information / pictures of Sawback angelshark - Squatina aculeata

Sawback angelshark (Squatina aculeata) fish species information

Scientific Name
Squatina aculeata

Common Name
Sawback angelshark

Biology
Found mainly on muddy bottom (Ref. 26999). Feeds on small sharks and jacks. Ovoviviparous (Ref. 50449). Utilized dried salted and fresh for human consumption; liver oil and hide also utilized (Ref. 247).

Classification

Classified By

Cuvier, 1829

Class

Sharks and Rays (Elasmobranchii)

Order

Angel sharks (Squatiniformes)

Family

Angel sharks (Squatinidae)

Distribution

Region

Eastern Atlantic

Distribution

Eastern Atlantic: western Mediterranean, Morocco, Senegal, Guinea to Nigeria, Gabon to Angola.

Range

43°N - 19°S, 18°W - 30°E

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

30 m

Depth To - meters

500 m

Zone

demersal

Environment

Marine; demersal; depth range 30 - 500 m (Ref. 247)

Trophic Level

3.97 s.e. 0.59 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

188 cm

Common Length

100.0 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: minor commercial

Vulnerability

High to very high vulnerability (75 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Critically Endangered (CR) (A2bcd+3cd+4cd)