Actinopterygii (ray-finned fishes) > Gadiformes
(Cods) > Gadidae
(Cods and haddocks)
Etymology: Boreogadus: Greek, boreas = north wind + Latin, gadus = a fish, cod? (Ref. 45335).
Environment / Climate / Range
Marine; brackish; demersal; oceanodromous (Ref. 51243); depth range 0 - 400 m (Ref. 1371). Polar; -2°C - 8°C (Ref. 96379), preferred -1°C (Ref. 107945); 87°N - 52°N, 180°W - 180°E (Ref. 1371)
Circumpolar in the Arctic. North Atlantic: White Sea, Iceland, and southern Greenland into the Miramichi River, New Brunswick in Canada. North Pacific: Bering Sea to Cape Olyutorski, the Pribilof Islands, and Bristol Bay.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 1371); common length : 25.0 cm TL male/unsexed; (Ref. 1371); max. reported age: 7 years (Ref. 1371)
soft rays: 33 - 44;
Vertebrae: 49 - 57. Caudal fin deeply concave. Lower jaw slightly longer than upper jaw. Chin barbel very small. No lateral line pores on head. Scales small and embedded, not overlapping. Brownish along the back with many fine points; the sides and belly silvery; the fins dusky with pale margins (Ref. 1371).
Occurs in coastal habitats during summer and winter (Ref. 1371). Cryopelagic or epontic, from surface down to 1383 m (Ref. 58426). In the Beaufort Sea, it may also be found in brackish lagoons and in almost fresh water in river mouths (Ref. 1371). Although associated with the occurrence of ice (White Sea), it is present in ice-free near-shore waters (Alaska) (Ref. 1371). Onshore-offshore movements are associated with spawning and movements of the ice (Ref. 27547). Feeds mostly on epibenthic mysids, also amphipods, copepods and fishes (Ref. 1371). Also caught with mid-water trawls (Ref. 1371). Utilized as fishmeal and source of oil (Ref. 1371). Euryhaline and eurythermic.
Oviparous, sexes are separate (Ref. 101194). Fish move close inshore, often in large numbers to spawn (Ref. 27547).
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 Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: highly commercial
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00267 - 0.00714), b=3.17 (3.02 - 3.32), based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.1 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.22; tm=2-5; Fec=30,000).
Prior r = 0.47, 2 SD range = 0.2 - 1.10, log(r) = -0.76, SD log(r) = 0.42, Based on: 3 M, 5 K, 7 tgen, 1 tmax, 11 Fec records
Vulnerability (Ref. 59153
): Moderate to high vulnerability (45 of 100) .