Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Ariidae
(Sea catfishes) > Ariinae
Etymology: Genidens: Greek, geny, -yos = face, jaw + Latin, dens, dentis = teeth (Ref. 45335).
More on author: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; demersal; oceanodromous (Ref. 51243); depth range 8 - 33 m (Ref. 121781). Subtropical; 4°S - 37°S, 61°W - 34°W
Southwest Atlantic: Atlantic coast from La Plata basin to eastern Brazil.
Length at first maturity / Size / Weight / Age
Maturity: Lm 41.5, range 22 - 73 cm
Max length : 120 cm TL male/unsexed; (Ref. 39852); max. reported age: 36 years (Ref. 6428)
soft rays: 14 - 15. Body dark blue dorsally, silvery white ventrally. Dorsal fin, adipose fin, soft ray of pectoral fin and maxillary barbel dark blue. Posterior margins of caudal and anal fins slightly blackish (Ref. 27363).
Males carry the eggs in their mouth (Ref. 205). Depth range based on occurrence (Ref. 121781); to be replaced with a better reference.
Males carry the eggs in their mouth (Ref. 205).
Marceniuk, A.P. and C.J. Ferraris Jr., 2003. Ariidae (Sea catfishes). p. 447-455. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the freshwater fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 39852)
IUCN Red List Status (Ref. 125652)
Threat to humans
Traumatogenic (Ref. 58010)
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00617 - 0.00850), b=3.06 (3.01 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (K=0.13; tmax=36; Fec=32).
Fishing Vulnerability (Ref. 59153
): High to very high vulnerability (69 of 100).
Nutrients (Ref. 124155
): Calcium = 59.8 [26.9, 133.4] mg/100g ; Iron = 1.14 [0.69, 1.88] mg/100g ; Protein = 17.9 [16.3, 19.6] % ; Omega3 = 0.662 [0.299, 1.417] g/100g ; Selenium = 42.9 [19.4, 90.7] μg/100g ; VitaminA = 11.8 [3.8, 36.9] μg/100g ; Zinc = 0.777 [0.473, 1.451] mg/100g (wet weight);