>
Centrarchiformes (Basses) >
Oplegnathidae (Knifejaws)
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335).
Eponymy: John Benjamin Romer Robinson (1869–1949) was a South African attorney and businessman. [...] (Ref. 128868), visit book page.
More on author: Regan.
Environment: milieu / climate zone / kisaran kedalaman / distribution range
Ekologi
laut berasosiasi dengan karang; kisaran kedalaman 20 - 100 m (Ref. 4387). Subtropical
Western Indian Ocean: occurs only in Mozambique and Natal, South Africa.
Size / Weight / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 60.0 cm TL jantan/; (Ref. 4387); common length : 40.0 cm TL jantan/; (Ref. 9660)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 11; duri punggung lunak (Keseluruhan (total)) : 20 - 24; Duri dubur: 3; Sirip dubur lunak: 14 - 17. Adults dark grey in color; juveniles yellow with black bars (very similar to young Diplodus cervinus hottentotus.
Body shape (shape guide): short and / or deep.
Occur in coastal rocky and coral reefs to a depth of 100 m; juveniles pelagic in currents (Ref. 4332). Benthic omnivores. May live longer than 10 years. Spawning occurs throughout the year (Ref. 57746). Marketed fresh (Ref. 9660).
Heemstra, P.C., 1986. Oplegnathidae. p. 632-633. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4387)
Status IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial; Ikan buruan: ya
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Preferred temperature (Acuan
123201): 23.6 - 26.7, mean 25.8 °C (based on 16 cells).
Phylogenetic diversity index (Acuan
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 (Acuan
69278): 3.2 ±0.42 se; based on food items.
Daya lenting (Acuan
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (tmax > 10).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
🛈