Environment: milieu / climate zone / depth range / distribution range
; marinhas bentopelágico; oceanódromo (Ref. 51243); intervalo de profundidade 0 - 868 m (Ref. 58496), usually 50 - 150 m (Ref. 4701). Polar; 80°N - 32°N, 95°W - 49°E
Western Atlantic: Nunavut, Hudson Bay to James Bay and Labrador in Canada to New Jersey in USA; rarely to Chesapeake Bay in USA and Bermuda. Eastern Atlantic: Barents Sea, Iceland and Greenland to Spain (Ref. 4701).
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 61.0 cm TL macho/indeterminado; (Ref. 58426); 42.9 cm SL (female); peso máx. publicado: 9.5 kg (Ref. 4701); peso máx. publicado: 9.5 kg; idade máx. registrada: 13 anos (Ref. 54207)
Espinhos dorsais (total): 5 - 9; Raios dorsais (total): 9-11; Espinhos anais 0; Raios anais : 9 - 10; Vértebras: 28 - 29. First dorsal fin present but covered by thick layer of skin forming a characteristic high crest with embedded spines. Bony tubercles present, arranged in 3 widely separated rows of large flattened tubercles on each side of body. Gill openings large, extend- extending below level of upper pectoral fin ray. Pyloric present 36-79. Ventral sucking disc formed by the modified pelvic fin (Ref. 232).
Basically solitary rather than a schooling fish. They exhibit a homing instinct (Ref. 9737). Adults inhabit rocky bottoms but may occur among floating seaweed. They migrate considerable distances in an annual cycle between deeper waters in winter and shallower waters in summer (Ref. 26141). Maximum depth reported at 868 m (Ref. 58426). Epibenthic-pelagic (Ref. 58426). Juveniles are found among algal clumps in bays and fjords moving offshore as they mature (Ref. 96431). During the spawning season the males become reddish in color on the underside, whereas females turn blue-green. Adults feed on ctenophores, medusas, small crustaceans, polychaetes, jelly fish and small fishes. Valued for their eggs, which make an inexpensive caviar (Ref. 9988). Eaten in Nordic countries, marketed fresh or smoked. Male flesh is most demanded and roe is sold fresh (Ref. 35388).
Eggs are laid in large numbers on stony bottoms (Ref. 9900). Male guards egg-mass aggressively.
Stein, D.L., 1986. Cyclopteridae. p. 1269-1274. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. III. (Ref. 4701)
Status na Lista Vermelha da UICN (Ref. 123251)
CITES (Ref. 123416)
Ameaça para os humanos
Uso pelos humanos
Pescarias: altamente comercial; isca: usually
Fontes da internet
Estimates based on models
Preferred temperature (Ref. 115969
): 0.6 - 11.4, mean 7.1 °C (based on 732 cells).
Índice de diversidade filogenética (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03090 (0.01166 - 0.08191), b=2.99 (2.76 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Nível Trófico (Ref. 69278
): 3.9 ±0.0 se; based on diet studies.
Resiliência (Ref. 120179
): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (K=0.12; tm=3-5; tmax=13; Fec=100,000).
Prior r = 0.17, 95% CL = 0.10 - 0.27, Based on 1 stock assessment.
Vulnerabilidade (Ref. 59153
): Moderate to high vulnerability (47 of 100) .
Nutrients (Ref. 124155
): Calcium = 12.5 [4.6, 48.9] mg/100g ; Iron = 0.414 [0.145, 1.097] mg/100g ; Protein = 14.5 [11.6, 18.0] % ; Omega3 = 0.408 [0.166, 1.256] g/100g ; Selenium = 24.4 [8.3, 61.6] μg/100g ; VitaminA = 16.5 [4.1, 63.5] μg/100g ; Zinc = 0.523 [0.208, 0.923] mg/100g (wet weight); based on nutrient studies.