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Merluccius bilinearis (Mitchill, 1814)

Silver hake
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Image of Merluccius bilinearis (Silver hake)
Merluccius bilinearis
Picture by Flescher, D.

分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

条鰭類 > Gadiformes (Cods) > Merlucciidae (Merluccid hakes) > Merlucciinae
Etymology: Merluccius: Latin, mar, maris = the sea + Latin, lucius = pike (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range 生態学

; 海 底生の; 海洋回遊性 (Ref. 51243); 深さの範囲 55 - 914 m (Ref. 58452).   Temperate; 55°N - 24°N, 80°W - 42°W (Ref. 54581)

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Northwest Atlantic: coast of Canada and USA from Bell Isle Channel to the Bahamas; most common from southern Newfoundland to South Carolina.

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 23.2  range ? - ? cm
Max length : 76.0 cm TL オス/雌雄の選別がない; (Ref. 1371); common length : 37.0 cm TL オス/雌雄の選別がない; (Ref. 1371); common length :65 cm TL (female); 最大公表体重: 2.3 kg (Ref. 1371); 最大記録サイズ: 12 年 (Ref. 1371)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 1; 背鰭 (合計): 47-54; 肛門の骨 0; 臀鰭: 37 - 41. Head large, about 30% of SL . Pectoral fins long, reaching origin of anal fin. Overall color is silvery, somewhat brownish on back, whitish on belly.

生物学     用語集 (例 epibenthic)

Abundant on sandy grounds and strays into shallower waters. A voracious predator with cannibalistic habits. Individuals over 40 cm TL prey on fishes such as gadoids and herring, while smaller ones feed on crustaceans, i.e. euphausiids and pandalids; food also includes gaspereau, myctophids, smelt, silversides, mackerel, sand lance, butterfish, snakeblennies, longhorn sculpins and squids (Ref. 5951). The smallest specimen feeds mostly on crustaceans (Ref. 58452). Exhibits seasonal onshore-offshore migration (Ref. 9988). Spawning takes place from June-July in the mid-Atlantic region; July-August in the Gulf of Maine and to the north of Georges Bank, and August-September on the Scotian Shelf (Ref. 58452). Marketed fresh, smoked and frozen; fresh fish are exported to European markets; eaten fried, broiled, microwaved and baked (Ref. 9988).

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

Spawning appears to be strongly influenced by water temperature, and annual variations occur both in the peak and the range of the spawning period, which may influence considerably the growth of juveniles.

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. 119314)

  絶滅危惧に近い (NT) ; Date assessed: 06 January 2015

CITES (Ref. 115941)

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 of some properties based on models

Preferred temperature (Ref. 115969): 0.9 - 7.8, mean 4.9 (based on 155 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00375 - 0.00843), b=3.11 (2.98 - 3.24), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  4.5   ±0.4 se; Based on diet studies.
回復力 (Ref. 69278):  手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.18-0.4;tm=2-3; tmax=12).
Prior r = 0.35, 95% CL = 0.28 - 0.43, Based on 2 stock assessments.
弱み (Ref. 59153):  Moderate to high vulnerability (54 of 100) .
価格帯 (Ref. 80766):   Low.