Actinopteri (ray-finned fishes) > Siluriformes
(Catfish) > Ariidae
(Sea catfishes) > Ariinae
Etymology: Ariopsis: Greek, ari = very, strength, superiority + Greek, opsis = appearance (Ref. 45335). More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; demersal; pH range: 6.8 - 8.0; dH range: 8 - 30. Tropical; 22°C - 26°C (Ref. 2060); 24°N - 5°S
Central and South America: Pacific draining rivers and estuaries from Mexico to Peru.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 39.5 cm TL male/unsexed; (Ref. 115882)
Common in coastal marine and brackish waters (Ref. 9271). Inhabits medium and large rivers to an elevation of at least 25 m (Ref. 36880). Marketed fresh or salted (Ref. 9271). Aquarium keeping: not suitable for home aquarium; adults in seawater; minimum aquarium size >150 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Betancur-R, R., A. Acero P, E. Bermingham and R. Cooke, 2007. Systematics and biogeography of New World sea catfishes (Siluriformes: Ariidae) as inferred from mitochondrial, nuclear, and morphological evidence. Mol. Phylogen. Evol. 45:339-357. (Ref. 86580)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Traumatogenic (Ref. 58010)
Fisheries: commercial; aquarium: public aquariums
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00430 - 0.01340), b=3.05 (2.90 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.55 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (37 of 100) .