Cottus aleuticus, Coastrange sculpin

Cottus aleuticus Gilbert, 1896

Coastrange sculpin
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Cottus aleuticus
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Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (peixes com raios nas barbatanas) > Scorpaeniformes (Scorpionfishes and flatheads) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335);  aleuticus: aleuticus meaning of the Aleutians (Ref. 1998).  More on author: Gilbert.

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

; marinhas; Água doce; estuarina demersal; catádromo (Ref. 51243).   Temperate; 68°N - 35°N, 175°W - 120°W

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

North America: Bristol Bay and Aleutian Islands, Alaska to northern California, USA. Isolated populations in lower Kobuk River (Alaska), Cultus Lake (British Columbia, Canada), and Lake Washington (USA) (Ref. 27547).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL macho/indeterminado; (Ref. 5723); common length : 6.0 cm TL macho/indeterminado; (Ref. 12193); Idade máx. registada: 8 anos (Ref. 27547)

Descrição breve Morfologia | Morfometria

Espinhos dorsais (total): 8 - 10; Raios dorsais moles (total): 17-20; Espinhos anais 0; Raios anais moles: 12 - 15; Vértebras: 34 - 38. Distinguished by having only a single pore on the tip of the chin, no palatine teeth and no pronounced gap between 1st and 2nd dorsal fins (Ref. 27547). Dark brown to greenish or grayish on back and sides, with darker blotches; sides lighter, ventral areas white; usually two or three dark saddle-like blotches below soft part of dorsal fin; dark bars on dorsal, anal, pectoral and caudal fins; orange edge on spiny dorsal fin of spawning males (Ref. 27547).

Biologia     Glossário (ex. epibenthic)

Inhabits gravel and rubble riffles of medium to large rivers and rocky shores of lakes (Ref. 5723). Occasionally enters estuaries (Ref. 5723) and nearshore coastal water (Ref. 43939). Feeds mostly at night and mostly on aquatic insects and benthic invertebrates (Ref. 27547). Generally solitary but large aggregations have been noted (Ref. 27547). Makes regular seasonal migrations associated with spawning (Ref. 27547). Considered a forage fish for some salmonids (Ref. 1998).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Adults make regular seasonal migrations associated with spawning. They move downstream to estuaries or at least to lower reaches of rivers in the spring, mostly at night (Ref. 27547). Eggs are deposited on the undersurface of a rock, in adhesive masses (Ref. 1998). Over 7,000 eggs have been found in a single nest, suggesting that a male may spawn with several females (Ref. 1998, 27547). The male guards the nest until all eggs have hatched (Ref. 1998, 27547). A reverse, upstream migration of yearlings and adults occur in late summer to early winter, from August to December (Ref. 27547).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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. 120744)

  Preocupação menor (LC) ; Date assessed: 08 November 2011

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem


Utilização humana

Pescarias: sem interesse
FAO(Publication : search) | FishSource |

Mais informação

Nomes comuns
Agregação para desova
Desenvolvimento dos ovos
Frequência de comprimento
Dinâmica larvar
Perfil para aquacultura
Frequência dos alelos
Mass conversion
Stamps, Coins Misc.
Tipo de natação
Área branquial
Outras referências


Relatórios especiais

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Fontes da internet

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genoma, nucleotídeo) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Árvore da vida | Wikipedia(ir para, procurar) | World Records Freshwater Fishing | Zoobank | Registo zoológico

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00302 - 0.01661), b=3.13 (2.93 - 3.33), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.2   ±0.3 se; Based on diet studies.
Resiliência (Ref. 120179):  Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (tm=3; tmax=8; Fec=100).
Vulnerabilidade (Ref. 59153):  Low to moderate vulnerability (34 of 100) .