Natal knifejaw (Oplegnathus robinsoni)

Scientific name: Oplegnathus robinsoni Regan, 1916

Natal knifejaw (Oplegnathus robinsoni)

The Natal knifejaw (Oplegnathus robinsoni) is a marine fish of the family Oplegnathidae. Native range: Western Indian Ocean, occurs only in Mozambique and Natal, South Africa.

Biology

Dorsal spines (total): 11; Dorsal soft rays (total): 20-24; Anal spines: 3; Anal soft rays: 14 - 17. Adults dark grey in color; juveniles yellow with black bars (very similar to young Diplodus cervinus hottentotus.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Oplegnathus robinsoni
Family
Oplegnathidae (Knifejaws)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
60.0
Common length
40.0
Depth range
20–100 m (66–328 ft)
Environment
Marine; reef-associated; depth range 20 - 100 m
Climate
Subtropical
Distribution
Western Indian Ocean: occurs only in Mozambique and Natal, South Africa.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial; gamefish: yes
Resilience
Low, minimum population doubling time 4.5 - 14 years (tmax > 10)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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