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Scombriformes (Mackerels) >
Icosteidae (Ragfish)
Etymology: Icosteus: Greek, eikoo = to sag, to bend something that is soft + Greek, osteon = bone.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
marinhas batipelágico; intervalo de profundidade 0 - 1420 m (Ref. 50550), usually 18 - 732 m (Ref. 2850). Deep-water; 66°N - 32°N
North Pacific: Japan to southeastern Alaska and to Point Loma, southern California, USA.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 213 cm TL macho/indeterminado; (Ref. 2850)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Raios dorsais moles (total) : 52 - 55; Espinhos anais: 0; Raios anais moles: 34 - 40. Pectorals rounded, pedunculate (Ref. 6885). Generally of a chocolate color (Ref. 6885). Young more robust, with an expanded and rounded caudal fin, 5 pelvic rays, and a brown and yellow irregularly blotched with faint purple color, dusky on fins (Ref. 6885).
Body shape (shape guide): short and / or deep.
Adults occur near bottom; juveniles in shallow water or offshore near the surface (Ref. 50277). Feeds on jellyfish (Ref. 50277), fishes and squids (Ref. 2850), as well as octopuses (Ref. 4525).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Pescarias: bycatch
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Temperatura preferida (Ref.
123201): 2 - 14.1, mean 6.2 °C (based on 1370 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 4.5 ±0.57 se; based on food items.
Generation time: 8.5 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliência (Ref.
120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (K=0.13; Fec=293,000).
Vulnerabilidade da pesca (Ref.
59153): High to very high vulnerability (71 of 100).
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