Japanese roughshark (Oxynotus japonicus) fish species and information / pictures of Japanese roughshark - Oxynotus japonicus

Japanese roughshark (Oxynotus japonicus) fish species information

Scientific Name
Oxynotus japonicus

Common Name
Japanese roughshark

Biology
Holotype trawled from a depth between 225 and 270 m (Ref. 31258). Ovoviviparous (Ref. 205).

Classification

Classified By

Yano & Murofushi, 1985

Class

Sharks and Rays (Elasmobranchii)

Order

Bramble, Sleeper and Dogfish sharks (Squaliformes)

Family

Rough sharks (Oxynotidae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: Suruga Bay, Japan.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

225 m

Depth To - meters

270 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 225 - 270 m (Ref. 31258)

Trophic Level

3.86 s.e. 0.58 Based on size and trophs of closest relatives

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

54.0 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

Unknown

Vulnerability

Moderate vulnerability (45 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)