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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
Eponymy: One of the ‘heavenly twins’ in Greek mythology (see also Castor). The etymology is not explicit, but apparently so named because the author viewed this species as a ‘twin’ to Cottus gobio. (Ref. 128868), visit book page.
More on author: Günther.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten bottenlevande; amfidrom (Ref. 51243). Temperate; 40°N - 31°N
Asia: in mountain streams of Honshu, Shikoku and Kyushu, Japan.
Length at first maturity / Size / Vikt / Age
Könsmognad: Lm 7.4, range 6 - 9.5 cm
Max length : 15.0 cm SL hane/ej könsbestämd; (Ref. 559); rapporterad maxålder: 4 år (Ref. 74384)
Bottom-dwelling fish of mountain streams.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
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: Version 2024-2)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00281 - 0.01234), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tm=2; Fec=200).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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