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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
Ekologi
laut berasosiasi dengan karang; kisaran kedalaman ? - 150 m. Subtropical; 28°S -
Western Indian Ocean: South Africa.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL jantan/; (Ref. 4387)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 12; duri punggung lunak (Keseluruhan (total)) : 11 - 14; Duri dubur: 3; Sirip dubur lunak: 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
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
van der Elst, R., 1981. A guide to the common sea fishes of southern Africa. C. Struik, Cape Town. 367 p. (Ref. 3670)
Status IUCN Red List (Ref. 130435: Version 2024-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial; Ikan buruan: ya
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
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).
Trophic level (Ref.
69278): 2.7 ±0.24 se; based on food items.
Daya lenting (Ref.
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (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);