Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
marinhas demersal; oceanódromo (Ref. 51243); intervalo de profundidade 55 - 914 m (Ref. 58452). Temperate; 55°N - 24°N, 80°W - 42°W (Ref. 54581)
Northwest Atlantic: coast of Canada and USA from Bell Isle Channel to the Bahamas; most common from southern Newfoundland to South Carolina.
Comprimento na primeira maturidade / Tamanho / Peso / Idade
Maturidade: Lm 23.2  range ? - ? cm
Max length : 76.0 cm TL macho/indeterminado; (Ref. 1371); common length : 37.0 cm TL macho/indeterminado; (Ref. 1371); common length :65 cm TL (female); peso máx. Publicado: 2.3 kg (Ref. 1371); Idade máx. registada: 12 anos (Ref. 1371)
Espinhos dorsais (total) : 1; Raios dorsais moles (total) : 47 - 54; Espinhos anais: 0; Raios anais moles: 37 - 41. Head large, about 30% of SL . Pectoral fins long, reaching origin of anal fin. Overall color is silvery, somewhat brownish on back, whitish on belly.
Body shape (shape guide): elongated; Cross section: oval.
Abundant on sandy grounds and strays into shallower waters. A voracious predator with cannibalistic habits. Individuals over 40 cm TL prey on fishes such as gadoids and herring, while smaller ones feed on crustaceans, i.e. euphausiids and pandalids; food also includes gaspereau, myctophids, smelt, silversides, mackerel, sand lance, butterfish, snakeblennies, longhorn sculpins and squids (Ref. 5951). The smallest specimen feeds mostly on crustaceans (Ref. 58452). Exhibits seasonal onshore-offshore migration (Ref. 9988). Spawning takes place from June-July in the mid-Atlantic region; July-August in the Gulf of Maine and to the north of Georges Bank, and August-September on the Scotian Shelf (Ref. 58452). Marketed fresh, smoked and frozen; fresh fish are exported to European markets; eaten fried, broiled, microwaved and baked (Ref. 9988).
Spawning appears to be strongly influenced by water temperature, and annual variations occur both in the peak and the range of the spawning period, which may influence considerably the growth of juveniles.
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Pescarias: altamente comercial; peixe desportivo: sim
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00490 (0.00405 - 0.00592), b=3.10 (3.05 - 3.15), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Nível Trófico (Ref. 69278) |
4.5 ±0.4 se; based on diet studies. |
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Generation time |
3.4 (2.7 - 4.3) years. Estimated as median ln(3)/K based on 10 growth studies. |
Resiliência (Ref. 120179) |
Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.18-0.4;tm=2-3; tmax=12). |
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Rate of population increase |
Prior r = 0.26, 95% CL = 0.17 - 0.39, Based on 3 full stock assessments. |
Vulnerabilidade da pesca (Ref. 59153) |
Moderate to high vulnerability (54 of 100). 🛈 |
Vulnerabilidade climática (Ref. 125649) |
Moderate to high vulnerability (47 of 100). 🛈 |
Categoria de preço (Ref. 80766) |
Low.
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Nutrientes (Ref. 124155) |
Calcium = 12.4 [6.5, 37.8] mg/100g; Iron = 0.245 [0.086, 0.595] mg/100g; Protein = 17.7 [16.6, 18.7] %; Omega3 = 0.276 [0.189, 0.400] g/100g; Selenium = 28.2 [14.6, 52.4] μg/100g; VitaminA = 17.2 [4.9, 58.6] μg/100g; Zinc = 0.279 [0.197, 0.387] mg/100g (wet weight); |