Common names from other countries
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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Etymology: Genidens: Greek, geny, -yos = face, jaw + Latin, dens, dentis = teeth (Ref. 45335).
More on author: Lacepède.
Issue
Synonymy follows Higuchi et al (1982).
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin; saumâtre démersal; océanodrome (Ref. 51243); profondeur 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 / Taille / Poids / Âge
Maturity: Lm 41.5, range 22 - 73 cm
Max length : 120 cm TL mâle / non sexé; (Ref. 39852); âge max. reporté: 36 années (Ref. 6428)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 7; Épines anales: 0; Rayons mous anaux: 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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Menace pour l'homme
Traumatogenic (Ref. 58010)
Utilisations par l'homme
Pêcheries: commercial
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00624 - 0.00880), b=3.05 (3.00 - 3.10), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
Niveau trophique (Ref.
69278): 3.8 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.13; tmax=36; Fec=32).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (69 of 100).