Common names from other countries
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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); rhotheus: rhotheus -- rushing of the torrent, referring to habitat (Ref. 1998).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Temperate; 52°N - 42°N
North America: upper Fraser River drainage in British Columbia in Canada to Nehalem River in Oregon, USA (including Columbia River drainage of British Columbia in Canada, and Washington, Idaho, Montana and Oregon in the USA).
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 15.5 cm TL macho/indeterminado; (Ref. 1998); common length : 6.8 cm TL macho/indeterminado; (Ref. 12193)
Espinhos dorsais (total) : 7 - 9; Raios dorsais moles (total) : 15 - 18; Raios anais moles: 11 - 14.
Inhabits rubble and gravel riffles of rivers and rocky lake shores. Individuals up to 5 cm feed on planktonic crustaceans and aquatic insect larvae especially that of midges and mayflies (Ref. 1998). Larger sculpins feed on minnows and other fishes (Ref. 1998). Possibly spawns in June (Ref. 1998).
Life cycle and mating behavior
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
Categoria na Lista Vermelha da IUCN (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.4 ±0.45 se; based on food items.
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Fec=448).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).