分类 / Names
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Teleostei >
Characiformes (Characins) >
Acestrorhynchidae (Smallscale pike characins) > Acestrorhynchinae
Etymology: Acestrorhynchus: Greek, agkistron = hook + Greek, rhyngchos = snout (Ref. 45335).
More on author: Bloch.
Issue
See Menezes, 1969:37 for detailed description. Photograph of the holotype of Salmo pulverulentus Linnaeus, 1758 examined.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Amazon and Orinoco River basins and rivers of Guyana, Suriname and French Guiana.
南美洲: 蓋亞那，蘇利南與法屬圭亞那的亞馬遜河與奧里諾科河河流域與河。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 111518); 最大体重: 255.00 g (Ref. 111518)
背棘 (总数) : 2; 背的软条 (总数) : 9; 臀棘: 3 - 5; 臀鳍软条: 21 - 27. Possesses a humeral spot shaped as an oval or inverted teardrop, occupying not less than a quarter of the height of the body; caudal peduncle with a black spot covering between one third and almost the totality of its depth (Ref. 52916).
持有一个肩部的斑点状似一个椭圆形或者反转了泪滴,占领不少于身体的高度的四分之一; 尾梗有一个黑色的斑点覆盖在三分之一之间与几乎它的深度的总体.(参考文献 52916)
Attains a length of around 20 cm. As indicated by its dentition and body form, it is a formidable predator which feeds exclusively on fish. A ubiquitous species, but frequently found throughout the length of waters with moderate flow. Reproduction begins with the onset of the rainy season (Ref. 12225).
达到大约 20 公分的长度。 依照用它的生齿与体型指出，它是专门地在鱼上吃的一个强大的掠食者。 到处存在的种但是在水域的长度各处时常被发现有中等的水流。 繁殖开始具有雨季的开始.(参考文献 12225)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 蓋亞那，蘇利南與法屬圭亞那的亞馬遜河與奧里諾科河河流域與河。
Menezes, N.A., 2003. Family Acestrorhynchidae (Acestrorhynchids). p. 231-233. 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. 38248)
人类利用
渔业: 低经济
工具
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00421 - 0.01086), b=3.15 (3.01 - 3.29), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.2 ±0.73 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
