Common names from other countries
分類 / Names
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Teleostei >
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
生態學
海洋; 半鹹淡水 居於水底的; 海洋洄游的 (Ref. 51243); 深度上下限 8 - 33 m (Ref. 121781). ; 4°S - 37°S, 61°W - 34°W
Southwest Atlantic: Atlantic coast from La Plata basin to eastern Brazil.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 41.5, range 22 - 73 cm
Max length : 120 cm TL 雄魚/尚未辨別雌雄; (Ref. 39852); 最大年齡: 36 年 (Ref. 6428)
背棘 (總數) : 1; 背的軟條 (總數) : 7; 臀棘: 0; 臀鰭軟條: 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)
CITES (Ref. 128078)
Not Evaluated
人類使用
漁業: 商業性
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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).
營養階層 (Ref.
69278): 3.8 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (K=0.13; tmax=36; Fec=32).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (69 of 100).