Oplegnathus conwayi Richardson, 1840

Cape knifejaw

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Oplegnathidae
Synonyms	Oplegnathus conwaii, Hoplegnathus conwayi, Hoplegnathus algoensis, ... more
Common names	... more

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Main reference

van der Elst, R. 1981. (Ref. 3670)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 90.0 cm TL male/unsexed; (Ref. 4387)

Environment

Reef-associated; marine; depth range ? - 150 m

Climate / Range

Subtropical; 28°S -

Western Indian Ocean: South Africa.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 12; Dorsal soft rays (total): 11 - 14; Anal spines: 3; Anal soft rays: 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).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: commercial; gamefish: yes


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment Abundance	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Phylogenetic diversity index (Ref. 82805)

PD₅₀ = 0.5156

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (tmax > 10)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (42 of 100)	Not marketed/unknown

Entered by Binohlan, Crispina B.

Modified by Luna, Susan M.

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