Puffadder shyshark (Haploblepharus edwardsii) fish species and information / pictures of Puffadder shyshark - Haploblepharus edwardsii

Puffadder shyshark (Haploblepharus edwardsii) fish species information

Scientific Name
Haploblepharus edwardsii

Common Name
Puffadder shyshark

Biology
Found in inshore and offshore waters of the continental shelf, on sandy and rocky bottoms (Ref. 244). Feeds on bony fishes, crustaceans and cephalopods (Ref. 244). Oviparous (Ref. 50449). Caught by surf anglers (Ref. 244).

Classification

Classified By

Schinz, 1822

Class

Sharks and Rays (Elasmobranchii)

Order

Ground sharks (Carcharhiniformes)

Family

Cat sharks (Scyliorhinidae)

Distribution

Region

Southeast Atlantic

Distribution

Southeast Atlantic: Cape Agulhas to Natal in South Africa. There are two different forms of this species, the 'Cape' and 'Natal' types, which differ in coloration and habitat and might be geographic variants or two distinct species (Ref. 6782).

Range

29°S - 35°S

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

130 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 130 m (Ref. 5510), usually 40 - 130 m (Ref. 5510)

Trophic Level

3.83 s.e. 0.51 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

59.0 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: subsistence fisheries; gamefish: yes

Vulnerability

Low to moderate vulnerability (34 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Fec assumed to be

Threat To Humans

Harmless

IUCN Red List Status

Near Threatened (NT)