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)
鱸形目 (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
石首魚科 (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). 熱帶; 10°N - 27°S, 83°W - 34°W
Western Atlantic: Costa Rica to southern Brazil.
西大西洋: 哥斯大黎加到巴西南部。
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).
银色的灰色, 背面颜色较深。 在胸鳍基底的一个扩散的黑色斑点, 鳍灰白的到淡黄色的。 嘴大的，极倾斜, 下颌突出的。 在顶端上颌有一对大的像犬齿一样的齿。 没有触须或者孔的下巴, 下缘吻部有 2个边缘的孔。 二个分开很远的背鳍。 气鳔有一对像触角一样的前肢。 矢耳石 (大的 earstone) 一般厚与椭圆形的 (参考文献 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.
发现于在沙的泥或软泥底上的沿岸浅水区了。 (参考文献 3702) 主要吃小的虾。 (参考文献 3702) 重要的食用鱼。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
西大西洋: 哥斯大黎加到巴西南部。
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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特别资料
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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);
