分類 / Names
共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
(Cods) > Merlucciidae
(Merluccid hakes) > Merlucciinae
Etymology: Macruronus: Greek, makros = great + Greek, onos = hake.
Environment: milieu / climate zone / depth range / distribution range
; 海; 汽水性の 底生の漂泳性; 海洋回遊性; 深さの範囲 0 - 1000 m (Ref. 26566), usually 200 - 700 m (Ref. 9563). Subtropical; 15°S - 55°S, 111°E - 173°W (Ref. 58452)
Southwest Pacific: New Zealand and southern Australia.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm ?, range 65 - 70 cm
Max length : 120 cm TL オス/雌雄の選別がない; (Ref. 1371); 130.0 cm TL (female); common length : 80.0 cm TL オス/雌雄の選別がない; (Ref. 1371); 最大公表体重: 1.5 kg (Ref. 1371); 最大公表体重: 1.5 kg; 最大記録サイズ: 25 年 (Ref. 6390)
背面の脊椎 (合計): 12 - 13; 背鰭 (合計): 96-106; 肛門の骨 0; 臀鰭: 89 - 93; 脊つい: 78 - 81. Dorsal surface silvery, with a purple or blue-green tinge; plank and belly silvery; fins darker. Body very elongate and compressed with a tapering tail, dorsal and anal fins confluent with the caudal fin (Ref. 33856).
Appear to live usually on or near the bottom, but may occasionally move up into mid-waters. Large adult fish generally occur deeper than 400 m, while juveniles may be found in shallower water (Ref. 9072), more commonly found in large estuaries and bays, and may even enter freshwaters (Ref. 1371). Juvenile specimens and especially adults belonging to the American subspecies, have been caught from the coastal zone to 110 m (Ref. 58452). Form schools. Feed primarily on lantern fishes. In New Zealand, it feeds in midwater on small fish, crustaceans and squid. Oviparous, spawn 1 million eggs on the average which are released all at one time (Ref. 6390). Utilized fresh and frozen; can be steamed, fried, cooked in microwave and baked (Ref. 9988).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Female blue grenadier produce about 1 million eggs on average, which are all released at once (Ref. 6390).
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)
CITES (Ref. 118484)
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
Estimates based on models
Preferred temperature (Ref. 115969
): 5.8 - 12.5, mean 8 (based on 300 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00236 - 0.00586), b=2.99 (2.85 - 3.13), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
栄養段階 (Ref. 69278
): 4.5 ±0.2 se; Based on diet studies.
Generation time: 5.5 (4.7 - 8.9) years. Estimated as median LN(3)/K based on 17 growth studies.
回復力 (Ref. 120179
): 低い, ４．５年～１４年の倍増期間の最小個体群 (K=0.12-0.2; tm=3-7; tmax=25; Fec = 1,000,000).
Prior r = 0.31, 95% CL = 0.20 - 0.49, Based on 4 stock assessments.
弱み (Ref. 59153
): High to very high vulnerability (66 of 100) .