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Teleostei (teleosts) > Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
More on authors: Jordan & Starks.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; freshwater; brackish; demersal; catadromous (Ref. 35893), usually ? - 1 m (Ref. 35893). Temperate; 5°C - 33°C (Ref. 56353); 41°N - 31°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Japan.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 30.0 cm SL male/unsexed; (Ref. 56353)

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).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

From an aquarium observation, parental care is provided by the male which guarded and cared for the eggs until they hatch (Ref. 56353).

Main reference Upload your references | References | Coordinator | Collaborators

Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 02 March 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
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Length-weight rel.
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Anatomy
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Visual pigment(s)
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.73 se; based on food items.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Fec = 15,000).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (27 of 100).

Price category (Ref. 80766): Low.

Cottus kazika Jordan & Starks, 1904