African sawtail catshark (Galeus polli) fish species and information / pictures of African sawtail catshark - Galeus polli

African sawtail catshark (Galeus polli) fish species information

Scientific Name
Galeus polli

Common Name
African sawtail catshark

Biology
Found on the outermost shelf and upper slope. Feeds mainly on small bony fish, including lanternfish, hakes, grenadiers, rockfish and lightfish, also squid and crustaceans. Ovoviviparous (Ref. 50449). Tolerates bottom with low oxygen levels (Ref. 5578). Utilized fresh (Ref. 244).

Classification

Classified By

Cadenat, 1959

Class

Sharks and Rays (Elasmobranchii)

Order

Ground sharks (Carcharhiniformes)

Family

Cat sharks (Scyliorhinidae)

Distribution

Region

Eastern Atlantic

Distribution

Eastern Atlantic: southern Morocco to Namibia.

Range

26°N - 26°S

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

200 m

Depth To - meters

720 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 200 - 720 m (Ref. 244), usually 300 - 500 m (Ref. 9996)

Trophic Level

4.21 s.e. 0.69 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

45.0 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: minor commercial

Vulnerability

Low to moderate vulnerability (28 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Fec=12)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)