Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Priacanthidae
(Bigeyes or catalufas)
Etymology: Priacanthus: Greek, prion = saw + Greek, akantha = thorn (Ref. 45335). More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 10 - 200 m (Ref. 5403), usually 15 - 100 m (Ref. 10786). Subtropical; 44°N - 40°S, 98°W - 34°E
Tropical and tropically influenced areas of the Atlantic Ocean. Western Atlantic: Canada (Ref. 5951) to Bermuda and at least North Carolina, USA (Ref. 5403) southward to northern Argentina (Ref. 3800). Eastern Atlantic: Madeira to Namibia. Mediterranean (Ref. 50345). Reports from the Indo-Pacific are misidentifications.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL male/unsexed; (Ref. 40637); common length : 35.0 cm TL male/unsexed; (Ref. 3661); max. published weight: 2.9 kg (Ref. 40637)
Found on coral reefs and rocky bottoms (Ref. 3800). Forms small aggregations near the bottom (Ref. 10786). A nocturnal feeder (Ref. 5521), feeds mainly on small fishes, crustaceans and polychaetes (Ref. 3800). Most of its prey are larvae. Flesh considered excellent quality; marketed fresh (Ref. 5217).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Starnes, W.C., 1988. Revision, phylogeny and biogeographic comments on the circumtropical marine percoid fish family Priacanthidae. Bull. Mar. Sci. 43(2):117-203. (Ref. 5403)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Reports of ciguatera poisoning (Ref. 31174)
Fisheries: minor commercial; gamefish: yes; aquarium: commercial
Estimates based on models
Preferred temperature (Ref. 115969
): 16.7 - 27.8, mean 24.7 (based on 1098 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.01341 - 0.02253), b=2.90 (2.83 - 2.97), in cm Total Length, based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 4.0 ±0.0 se; Based on diet studies.
Generation time: 1.6 ( na - na) years. Estimated as median LN(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K=0.7).
Vulnerability (Ref. 59153
): Low vulnerability (25 of 100) .