Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Oplegnathidae (Knifejaws)
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335).
Environment / Climate / Range
Ecology
Marine; reef-associated; depth range 1 - 10 m (Ref. 58302). Temperate
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 80.0 cm TL male/unsexed; (Ref. 559); max. published weight: 6.4 kg (Ref. 40637)
Northwest Pacific: Japan, Korea, Taiwan. Eastern Central Pacific: Hawaii.
Inhabits coastal rocky reefs (Ref. 43239). Benthopelagic (Ref. 58302). Juveniles associate with drifting seaweed (Ref. 12114, 12115, 58302).
Nakabo, T., 2002. Fishes of Japan with pictorial keys to the species, English edition II. Tokai University Press, Japan, pp 867-1749.
IUCN Red List Status (Ref. 90363)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00000 (0.00000 - 0.00000), b=0.00 (0.00 - 0.00), based on (Ref.
93245).
Trophic Level (Ref.
69278): 3.6 ±0.50 se; Based on food items.
Resilience (Ref.
69278): .
Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100) .