Japan country information

Common names: Japanese fluvial sculpin, Kajika, カジカ
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs from northern Kyushu to southern Hokkaido. Recorded from Lake Biwa (Ref. 78994). Status of threat in the 2005 Red Data Book of Shiga Prefecture : rare (Ref. 79825). Status of threat: Near threatened (Ref. 94887).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
National Database:

Common names from other countries

钝头杜父鱼, Kajika, 鈍頭杜父魚, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
More on author: Günther.

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

; süßwasser demersal; amphidrom (Ref. 51243). Temperate; 40°N - 31°N

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Asia: in mountain streams of Honshu, Shikoku and Kyushu, Japan.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 7.4, range 6 - 9.5 cm
Max length : 15.0 cm SL Männchen/unbestimmt; (Ref. 559); max. veröff. Alter: 4 Jahre (Ref. 74384)

Bottom-dwelling fish of mountain streams.

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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 Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 23 July 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

FAO(Publication : search) | FishSource |

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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): 3.4 ±0.5 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (tm=2; Fec=200).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Cottus pollux Günther, 1873