分類 / Names
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Gadiformes (Cods) >
Gadidae (Cods and haddocks)
Etymology: Pollachius: Scottish dialect, podlock, paddle = bumpfish (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の漂泳性; 海洋回遊性 (Ref. 51243); 深さの範囲 40 - 200 m (Ref. 6302), usually 40 - 100 m (Ref. 54707). Temperate; 72°N - 36°N, 25°W - 28°E
Northeast Atlantic: Iceland, the Faeroes and Norway to the Bay of Biscay (Ref. 1371); also southern Baltic Sea (Ref. 89342) with records from Poland, Latvia and Estonia (Refs. 36252, 52079).
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 41.0, range 42 - ? cm
Max length : 130 cm TL オス/雌雄の選別がない; (Ref. 1371); common length : 75.0 cm TL オス/雌雄の選別がない; (Ref. 1371); 最大公表体重: 18.1 kg (Ref. 40637); 最大記録サイズ: 8 年 (Ref. 1371)
背面の脊椎 (合計) : 0; 背鰭 (合計) : 29 - 33; 臀鰭: 27 - 30; 脊つい: 52 - 55. Lower jaw distinctly projecting beyond upper ones. Lacks a chin barbel. Dark lateral line that sharply curves over the pectoral fin and continues over whole body. No dark spot at pectoral fin base. Dorsal and anal fin interspaces short. Sensory canals with large pores on head. Body color is variable; dark dorsally, sharply distinguished from silver-gray sides and belly; the upper part of the body with yellow to orange streaks or blotches; the lateral line greenish. The fins uniformly dark except for the pelvic fins which are yellowish.
Found in inshore waters but also down to 200 m depth, in areas with hard bottoms. Juveniles are pelagic, spending 2-3 years near the coast including rocky areas, kelp beds, sandy shores and estuaries (Ref. 1371, 58137, 89343, 89362). Juveniles may form schools with saithe (Pollachius virens) (Ref. 88187), and have also been found solitary and defending their feeding territory (Refs. 42174, 89363). Larger individuals move to the open sea and are often found around rocky areas at 40-100 m depth (Ref. 1371). Also observed around shipwrecks and oil platforms (Ref. 88187). Adults occur singly or in small dispersed shoals but is known to form dense shoals on spawning grounds (Ref. 89364). Suggested to undertake spawning migrations (Ref. 88171). Caught as bycatch in cod and saithe fisheries. Flesh is dry but of good flavor (Ref. 35388). Classified as a "hearing generalist" (89365); has also been found to produce sound. Juveniles have been reported to make repeated short grunts during competitive feeding and aggressive encounters (89366).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Oviparous and gonochorous (Ref. 205).
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: Version 2024-1)
Human uses
水産業: 商業; ゲームフィッシュ: はい
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 7 - 11.9, mean 8.9 °C (based on 283 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00588 - 0.00814), b=3.08 (3.04 - 3.12), in cm total length, based on LWR estimates for this species (Ref.
93245).
栄養段階 (Ref.
69278): 4.3 ±0.3 se; based on diet studies.
Generation time: 5.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth 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=0.19; tmax=8).
Prior r = 0.63, 95% CL = 0.42 - 0.95, Based on 3 data-limited stock assessments.
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (82 of 100).
Nutrients (Ref.
124155): Calcium = 8.53 [3.62, 29.51] mg/100g; Iron = 0.222 [0.085, 0.575] mg/100g; Protein = 17.7 [15.7, 19.8] %; Omega3 = 0.544 [0.279, 1.082] g/100g; Selenium = 25.4 [8.6, 76.9] μg/100g; VitaminA = 17.8 [4.6, 71.0] μg/100g; Zinc = 0.401 [0.206, 0.797] mg/100g (wet weight);
