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Boreogadus saida (Lepechin, 1774)

Polar cod
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Boreogadus saida   AquaMaps   Data sources: GBIF OBIS
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Boreogadus saida
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Russian Federation country information

Common names: Polar cod, Polyarnaya treska, Saika
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref: Morrow, J.E., 1980
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Migrates inshore to spawn. Forms large aggregations in the coastal waters and river mouths (Northern Dvina, Pesha and Indiga river (Ref. 26334). The commercial catch mostly used for animal food (Ref. 27547). Also Ref. 1371, 6793, 123027. Barents, Pechora, Kara, Leptev and East-Siberian seas (Ref. 117985).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rs.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997
National Database:

Common names from other countries

Morue polaire, Bacalao polar, Сайка (=полярная тресочка), ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> 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 生態学

海; 汽水性の 底生の; 海洋回遊性 (Ref. 12074); 深さの範囲 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)

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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.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL オス/雌雄の選別がない; (Ref. 1371); common length : 25.0 cm TL オス/雌雄の選別がない; (Ref. 1371); 最大記録サイズ: 7 年 (Ref. 1371)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 0; 背鰭 (合計): 42-57; 肛門の骨 0; 臀鰭: 33 - 44; 脊つい: 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).

生物学     用語集 (例 epibenthic)

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.

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生

Oviparous, sexes are separate (Ref. 101194). Fish move close inshore, often in large numbers to spawn (Ref. 27547).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

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のレッドリストの状況は (Ref. 130435)

  評価されなかった 

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 高い商業の
FAO(水産業: 代謝, 種の外形; publication : search) | FishSource | 私達の周りの海

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Estimates based on models

Preferred temperature (Ref. 115969): -1.3 - 4, mean 0.2 (based on 1585 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
栄養段階 (Ref. 69278):  3.1   ±0.1 se; based on diet studies.
回復力 (Ref. 120179):  手段, １．４年～４．４年の倍増期間の最小個体群 (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).
価格帯 (Ref. 80766):   High.