分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Acestrorhynchidae (Smallscale pike characins)
狼牙脂鯉科 (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
生態學
; 淡水 底中水層性. 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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 111518); 最大體重: 255.00 g (Ref. 111518)
背棘 (總數) : 2; 背的軟條 (總數) : 9; 臀棘: 3 - 5; 臀鰭軟條: 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).
持有一個肩部的斑點狀似一個橢圓形或者反轉了淚滴,佔領不少於身體的高度的四分之一; 尾梗有一個黑色的斑點覆蓋在三分之一之間與幾乎它的深度的總體.(參考文獻 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).
達到大約 20 公分的長度。 依照用它的生齒與體型指出，它是專門地在魚上吃的一個強大的掠食者。 到處存在的種但是在水域的長度各處時常被發現有中等的水流。 繁殖開始具有雨季的開始.(參考文獻 12225)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 07 February 2020
人類使用
漁業: 低經濟
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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=0.00759 (0.00468 - 0.01229), b=3.12 (2.98 - 3.26), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.2 ±0.73 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
