Actinopteri (ray-finned fishes) > Eupercaria/misc
(Various families in series Eupercaria) > 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. 125652)
Threat to humans
Reports of ciguatera poisoning (Ref. 31174)
Fisheries: minor commercial; gamefish: yes; aquarium: commercial
Estimates based on models
Preferred temperature (Ref. 123201
): 16.7 - 27.8, mean 24.7 °C (based on 1098 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01698 (0.01317 - 0.02190), 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).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (25 of 100).
Nutrients (Ref. 124155
): Calcium = 39.6 [21.9, 86.1] mg/100g ; Iron = 0.97 [0.59, 1.59] mg/100g ; Protein = 20.6 [19.6, 21.5] % ; Omega3 = 0.223 [0.135, 0.373] g/100g ; Selenium = 22.5 [11.5, 43.8] μg/100g ; VitaminA = 24.9 [7.7, 80.9] μg/100g ; Zinc = 0.812 [0.540, 1.234] mg/100g (wet weight);