分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Isopisthus: Greek, isos = equal + Greek, opisthe = behind (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 居于水底的; 深度上下限 1 - 45 m (Ref. 3702). ; 10°N - 27°S, 83°W - 34°W
Western Atlantic: Costa Rica to southern Brazil.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 15.9  range ? - ? cm
Max length : 41.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 122735); common length : 20.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3702); 最大体重: 740.00 g (Ref. 122735)
背棘 (总数) : 8 - 9; 背的软条 (总数) : 19 - 20; 臀棘: 2; 臀鳍软条: 18 - 19. Silver grey, darker above. A diffuse black spot at pectoral-fin bases, fins pale to yellowish. Mouth large, strongly oblique, lower jaw projecting. Upper jaw with a pair of large canine-like teeth at tip. Chin without barbel or pores, lower margin of snout with 2 marginal pores. Two widely separated dorsal fins. Gas bladder with a pair of horn-like anterior appendages. Sagitta (large earstone) moderately thick and oval (Ref 51721).
Found in shallow coastal waters over sandy mud or soft mud bottoms (Ref. 3702). Feeds mainly on small shrimps (Ref. 3702). Important food fish.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Cervigón, F., 1993. Los peces marinos de Venezuela. Volume 2. Fundación Científica Los Roques, Caracas,Venezuela. 497 p. (Ref. 9626)
人类利用
渔业: 低经济; 诱饵: usually
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Estimates based on models
Preferred temperature (Ref.
123201): 24.8 - 27.9, mean 27.4 °C (based on 110 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00727 - 0.00868), b=3.07 (3.05 - 3.09), in cm total length, based on LWR estimates for this species (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.4 se; based on diet studies.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (32 of 100).
Nutrients (Ref.
124155): Calcium = 209 [116, 401] mg/100g; Iron = 1.19 [0.63, 2.15] mg/100g; Protein = 19.3 [18.1, 20.4] %; Omega3 = 0.269 [0.138, 0.466] g/100g; Selenium = 43.8 [22.6, 88.2] μg/100g; VitaminA = 23.3 [8.3, 72.3] μg/100g; Zinc = 1.4 [1.0, 2.0] mg/100g (wet weight);