Actinopteri (ray-finned fishes) > Centrarchiformes
(Basses) > Oplegnathidae
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335). More on author: Kner.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 3 - 30 m (Ref. 55763). Tropical
Eastern Pacific: Paita, Peru to Antofagasta, Chile, including the Galapagos Islands (Ref. 5530).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 66.0 cm TL male/unsexed; (Ref. 55763); common length : 30.0 cm TL male/unsexed; (Ref. 55763); max. published weight: 1.6 kg (Ref. 53696)
Usually solitary. Constantly swims over rocky reefs, boulder strewn slopes and along walls. Occurs more commonly in shallow water (Ref. 5227). Feeds on algae and invertebrates (Ref. 28023).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Merlen, G., 1988. A field guide to the fishes of Galapagos. Wilmot Books, London, England 60 p. (Ref. 5590)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 18.5 - 24.8, mean 21 °C (based on 150 cells).
Phylogenetic diversity index (Ref. 82805
= 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 (Ref. 69278
): 3.9 ±0.2 se; based on diet studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tmax assumed to be > 10).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .