Nervous shark (Carcharhinus cautus) fish species and information / pictures of Nervous shark - Carcharhinus cautus

Nervous shark (Carcharhinus cautus) fish species information

Scientific Name
Carcharhinus cautus

Common Name
Nervous shark

Biology
A little-known reef shark found in shallow water on the continental and insular shelves, but may range in deeper water (Ref. 244). Feeds on small fishes and crabs (Ref. 244). Viviparous (Ref. 50449). Rather skittish and timid when approached (Ref. 244). Probably harmless or minimally hazardous to people (Ref. 244). Utilized for human consumption (Ref. 9997).

Classification

Classified By

Whitley, 1945

Class

Sharks and Rays (Elasmobranchii)

Order

Ground sharks (Carcharhiniformes)

Family

Requiem sharks (Carcharhinidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: southern New Guinea, Solomon Islands, and northern Australia (including Western Australia, Ref. 7300).

Range

5°S - 30°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

reef-associated

Environment

Marine; reef-associated

Trophic Level

4.47 s.e. 0.79 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

150 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

High vulnerability (58 of 100)

Resilience

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

Threat To Humans

Harmless (Ref. 244)

IUCN Red List Status

Data deficient (DD)