Scientific Name
Cottus kazika

Common Name
Fourspine sculpin

Biology
Adults are found in the middle reaches of rivers during the summer; migrates downstream in autumn (Ref. 559). River bed consists of cobbles, boulders and gravel in riffles and sand and gravel in pools (Ref. 56353). Feed on fishes (Ref. 559). Juveniles migrate from the spawning ground in the sea to the middle reaches of rivers to grow (Ref. 56353).

Classification

Classified By

Jordan & Starks, 1904

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Sculpins (Cottidae)

Distribution

Region

Asia

Distribution

Asia: Japan.

Range

41°N - 31°N

Environment

Climate

Temperate

Water Temperature From

5 °C

Water Temperature To

33 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; catadromous (Ref. 35893), usually ? - 1 m (Ref. 35893)

Trophic Level

4.2 s.e. 0.73 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

30.0 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: commercial

Vulnerability

High vulnerability (57 of 100)

Resilience

High, minimum population doubling time less than 15 months (Fec = 15,000)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated