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Centrarchiformes (Basses) >
Oplegnathidae (Knifejaws)
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335).
Eponymy: Peão Lopes of the Lourenco Marques Museum was described as “…a most able collector and technician”. He collected eight of the records of fishes in or near Delagoa Bay that Smith discussed in his paper, presumably including the knifejaw holotype. (Ref. 128868), visit book page.
More on author: Smith.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien rifbewoner; diepte 20 - 130 m. Tropical
Western Indian Ocean: Delagoa Bay in Mozambique northwards (Ref. 4387), but the northern limit of its range in not known (Ref. 9660).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 75.0 cm TL mannelijk / geslacht onbekend; (Ref. 9660); common length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 9660)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 11; Dorsale zachte stralen (totaal) : 20 - 21; Anale stekels: 3; Anale zachte stralen: 16. Adults dark bronzy brown in color.
Body shape (shape guide): short and / or deep.
Inhabits reef areas and feeds on benthic invertebrates.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Heemstra, P.C., 1984. Oplegnathidae. In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing area 51). Vol. 3, FAO, Rome. (Ref. 9660)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
Tools
Speciale rapporten
Download XML
Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Trofisch niveau (Ref. 69278) |
3.5 ±0.37 se; based on food items. |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low to moderate vulnerability (32 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
Unknown.
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