Common names from other countries

Lieu de l'Alaska, Colín de Alaska, قدّيّة ألاسكا, ... more

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> Gadiformes (Cods) > Gadidae (Cods and haddocks)
Etymology: Gadus: Latin, gadus = a fish, cod? (Ref. 45335); chalcogrammus: Name from the Greek 'chalcos' meaning brass and 'gramma' meaning mark (Ref. 6885).
More on author: Pallas.

Issue
This species is placed in the genus Gadus in Eschmeyer (CofF ver. Jan. 2012: Ref. 89336). More studies are needed for a complete revision of all genera of Gadidae.

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

seewasser; brackwasser benthopelagisch; standorttreu; tiefenbereich ? - 1280 m (Ref. 50550), usually 30 - 400 m (Ref. 54255). Polar; 68°N - 34°N, 129°E - 120°W (Ref. 54255)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

North Pacific: from Kivalina, Alaska, to the southern Sea of Japan and to Carmel, California, USA. The occurrence off the northern part of Baja California (Mexico), as reported from Quast and Hall, (1972) (Ref. 6876) is apparently erroneous.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 36.9 range ? - ? cm
Max length : 91.0 cm TL Männchen/unbestimmt; (Ref. 2850); max. veröff. Gewicht: 3.9 kg (Ref. 56335); max. veröff. Alter: 28 Jahre (Ref. 55701)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 38 - 48; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 33 - 42. The dorsal fins are widely separated. The pelvic fins have a slightly elongated filament. The lateral line is continuous to about the back end of the first dorsal-fin base; it is interrupted at the read of the body. On the head are lateral line pores. Body color is olive green to brown on the back and becomes silvery on the sides and pale ventrally, often with mottled patterns or blotches.

The adults usually live near to the sea floor, but sometimes they also appear near the surface (Ref. 1371). They perform diurnal vertical migrations (Ref. 1371). They mainly feed on krill (Ref. 39882) but they also eat fishes and crustaceans (Ref. 6885). The adults which are spawning are often solely captured for their roe (may have been the case in the first years of the fishery in the U.S., but hasn't been true for some time. In 1994, the North Pacific Fishery Management Council/NOAA enacted an amendment to the Bering Sea and Gulf of Alaska Fishery Management Plans effectively banning the practice of stripping roe and discarding the carcasses, R. Rogness, pers.comm. April 2022). The meat is used to produce surimi (this is an imitation of shellfish meat) (Ref. 28499). They are traded as fresh fish, boneless flesh, in frozen blocks or as surimi. The fish is cooked in the microwave, steamed or fried in butter (Ref. 9988).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Oviparous, sexes are separate (Ref. 205). Congregate in dense schools to spawn, usually at 50 to 250 m depth.

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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)

IUCN Rote Liste Status (Ref. 130435)

Nicht untersucht

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: hoch kommerziell

FAO(Fischereien: production, Artbeschreibung; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 0.4 - 5.6, mean 1.6 (based on 444 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00631 (0.00550 - 0.00723), b=3.03 (2.99 - 3.07), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.1 se; based on diet studies.

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Musick et al. 2000 (Ref. 36717); tmax = 28).

Prior r = 0.29, 95% CL = 0.19 - 0.44, Based on 16 full stock assessments.

Fishing Vulnerability (Ref. 59153): High vulnerability (59 of 100).

Climate Vulnerability (Ref. 125649): High vulnerability (55 of 100).

Preiskategorie (Ref. 80766): Low.

Gadus chalcogrammus Pallas, 1814