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Hydrolagus colliei  (Lay & Bennett, 1839)

Spotted ratfish
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Image of Hydrolagus colliei (Spotted ratfish)
Hydrolagus colliei
Picture by Nichols, J.


United States (contiguous states) country information

Common names: Ratfish, Spotted ratfish, Spotted rattfish
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Monterey Bay (Ref. 12091). Common on sandy beaches in Puget Sound, Washington in 1895 (Ref. 28609). Also Ref. 4925, 6793.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: https://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983
National Database:

Classificação / Names

Holocephali (quimeras) (chimaeras) > Chimaeriformes (Chimaeras) > Chimaeridae (Shortnose chimaeras or ratfishes)
Nomes comuns | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Referência principal

Tamanho / Peso / Idade

Max length : 100.0 cm TL macho/indeterminado; (Ref. 96339)

Length at first maturity
Lm ?, range 19 - ? cm

Ambiente

; marinhas demersal; intervalo de profundidade 0 - 913 m (Ref. 6793), usually 50 - 400 m (Ref. 43939)

Clima / Intervalo

Temperate, preferred 14°C (Ref. 107945); 59°N - 8°N, 141°W - 83°W

Distribuição

Northeastern Pacific: west coast of North America from southwestern Alaska to Baja California, Mexico, including the Gulf of California, and Costa Rica.
Países | Áreas FAO | Ecossistemas | Ocorrências | Introduções

Descrição breve

This species is distinguished by the following characters: short and bluntly rounded snout; oral and preopercular lateral line canals not sharing a short common branch from the infraorbital canal; anterior edge of dorsal-fin spine non-serrated; anterior and posterior regions of second dorsal-fin considerably taller than the middle region; pectoral fins when depressed do not reach beyond to origin of pelvic fins; no anal fin; caudal-fin axis horizontal with the fin nearly symmetrical, epaxial and hypaxial lobes equal sized; coloration brown or reddish brown with small white spots on head and trunk (Ref. 97389).

Biologia     Glossário (ex. epibenthic)

Found near the bottom, from close inshore to about 913 m (Ref. 2850). Abundant in cold waters at moderate depths. Feed on mollusks, crustaceans and fishes (Ref. 37955); also echinoderms and worms (Ref. 28499). The spine can be dangerous and cause a painful wound (Ref. 2850). Fishers are reputed to fear the jaws of the ratfish more than they do the dorsal spine. Its flesh is edible but bland and leaves an unpleasant aftertaste (Ref. 28499). The liver was used as a source of machine oil (Ref. 28499).

Categoria na Lista Vermelha da IUCN (Ref. 115185)

Ameaça para o homem

  Traumatogenic (Ref. 4690)



Utilização humana

Pescarias: sem interesse; Aquário: Aquários públicos

Mais informação

Nomes comuns
Sinónimos
Metabolismo
Predadores
Ecotoxicologia
Reprodução
Maturidade
Desova
Fecundidade
Ovos
Desenvolvimento dos ovos
Idade/Tamanho
Crescimento
Comprimento-peso
Comprimento-comprimento
Frequência de comprimento
Morfometria
Morfologia
Larvas
Dinâmica larvar
Recrutamento
Abundância
Referências
Aquacultura
Perfil para aquacultura
Estirpes
Genética
Frequência dos alelos
Hereditariedade
Doenças
Processamento
Mass conversion
Colaboradores
Fotografias
Stamps, Coins
Sons
Ciguatera
Velocidade
Tipo de natação
Área branquial
Outras referências
Cérebros
Visão

Ferramentas

Relatórios especiais

Descarregue XML

Fontes da internet

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Nível Trófico (Ref. 69278)
3.7   ±0.54 se; Based on food items.

Resiliência (Ref. 69278)
Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (K=0.2-0.22; Fec=2)

Vulnerabilidade (Ref. 59153)
Moderate to high vulnerability (50 of 100)
Categoria de preço (Ref. 80766)