分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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
生態學
海洋; 半鹹淡水 居於水底的; 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 / 年齡
Maturity: Lm 15.9 range ? - ? cm
Max length : 41.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 122735); common length : 20.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 3702); 最大體重: 740.00 g (Ref. 122735)
背棘 (總數) : 8 - 9; 背的軟條 (總數) : 19 - 20; 臀棘: 2; 臀鰭軟條: 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).
銀色的灰色, 背面顏色較深。 在胸鰭基底的一個擴散的黑色斑點, 鰭灰白的到淡黃色的。 嘴大的﹐極傾斜, 下頜突出的。 在頂端上頜有一對大的像犬齒一樣的齒。 沒有觸鬚或者孔的下巴, 下緣吻部有 2個邊緣的孔。 二個分開很遠的背鰭。 氣鰾有一對像觸角一樣的前肢。 矢耳石 (大的 earstone) 一般厚與橢圓形的 (參考文獻 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.
發現於在沙的泥或軟泥底上的沿岸淺水區了。 (參考文獻 3702) 主要吃小的蝦。 (參考文獻 3702) 重要的食用魚。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
人類使用
漁業: 低經濟; 誘餌: 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).
營養階層 (Ref.
69278): 4.0 ±0.4 se; based on diet studies.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 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);
