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Gadiformes (Cods) >
Gadidae (Cods and haddocks)
Etymology: Boreogadus: Greek, boreas = north wind + Latin, gadus = a fish, cod? (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري; مياه مخلوطة القاع; محيطية (Ref. 12074); نطاق العمق 0 - 1383 m (Ref. 58426), usually 0 - 400 m (Ref. 1371). Polar; -2°C - 8°C (Ref. 96379); 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.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 40.0 cm TL ذكر/ مختلط الجنس; (Ref. 1371); common length : 25.0 cm TL ذكر/ مختلط الجنس; (Ref. 1371); العمر: 7 سنين (Ref. 1371)
الأشواك الظهرية (المجموع): 0; الأشعة الظهرية الناعمة (المجموع): 42-57; شوكة شرجية 0; أشعه شرجية لينه: 33 - 44; فقرات: 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. 130435)
استخدامات بشرية
مصائد: ذو قيمة تاجرية عالية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): -1.3 - 4, mean 0.2 °C (based on 1585 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00360 - 0.00581), b=3.16 (3.09 - 3.23), in cm total length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.1 ±0.1 se; based on diet studies.
Generation time: 4.9 (2.6 - 5.8) years. Estimated as median ln(3)/K based on 11
growth studies.
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (K=0.22; tm=2-5; Fec=30,000).
Prior r = 0.32, 95% CL = 0.21 - 0.48, Based on 1 stock assessment.
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (46 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (40 of 100).
Nutrients (Ref.
124155): Calcium = 29.7 [14.9, 76.5] mg/100g; Iron = 0.406 [0.197, 0.920] mg/100g; Protein = 16.6 [15.0, 18.1] %; Omega3 = 0.269 [0.118, 0.607] g/100g; Selenium = 21.3 [7.3, 51.3] μg/100g; VitaminA = 9.34 [1.69, 52.12] μg/100g; Zinc = 0.575 [0.351, 0.941] mg/100g (wet weight);
