分類 / Names
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Centrarchiformes (Basses) >
Oplegnathidae (Knifejaws)
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335).
Eponymy: David Barry Conway (d: 1832) was a Royal navy surgeon who was medical superintendant on two different convict ships to Australia. [...] (Ref. 128868), visit book page.
More on author: Richardson.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 関連する礁; 深さの範囲 ? - 150 m. Subtropical; 28°S -
Western Indian Ocean: South Africa.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL オス/雌雄の選別がない; (Ref. 4387)
背面の脊椎 (合計) : 12; 背鰭 (合計) : 11 - 14; 肛門の骨: 3; 臀鰭: 11 - 13.
Found in coastal waters down at a depth of about 150 m. Adults found near reefs, juveniles found near floating objects. Feed on benthic invertebrates and algae (Ref. 5213). May live longer than 10 years. Spawning occurs throughout the year (Ref. 57746). Rarely hooked but easily speared (Ref. 4387).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
van der Elst, R., 1981. A guide to the common sea fishes of southern Africa. C. Struik, Cape Town. 367 p. (Ref. 3670)
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
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 2.7 ±0.24 se; based on food items.
回復力 (Ref.
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (tmax > 10).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
Nutrients (Ref.
124155): Calcium = 19.4 [8.6, 35.0] mg/100g; Iron = 0.515 [0.294, 0.877] mg/100g; Protein = 19.3 [18.1, 20.5] %; Omega3 = 0.148 [0.083, 0.264] g/100g; Selenium = 26.6 [12.9, 56.1] μg/100g; VitaminA = 14.8 [3.5, 62.2] μg/100g; Zinc = 0.602 [0.387, 0.917] mg/100g (wet weight);