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).
Issue
See Toledo-Piza & Menezes, 1996:579 for detailed description.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 5.5 - 6.5. 熱帶; 18°C - 28°C (Ref. 13614)
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 : 37.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 111697); 最大體重: 230.00 g (Ref. 111518)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 2; 背的軟條 (總數) : 8 - 10; 臀棘: 3 - 5; 臀鰭軟條: 22 - 30. Possesses a minute spot behind the opercle; lateral line scales 91-131; small eye 17.9-34.1% head length; snout length 32.5-50.0% head length (Ref. 52916).
持有在鰓蓋後面的一個細小的斑點; 側線鱗片 91-131; 小的眼 17.9-34.1% 頭長; 吻的長度 32.5-50.0% 頭長.(參考文獻 52916)
Common in black and clear water streams and rivers, as well as lagoons and other off-channel habitats associated with whitewater rivers (Ref. 52916). Prefers slow currents and a silty or sandy bottom. Like other species of the genus, it is a formidable predator (Ref. 12225). Strict piscivore; however, it consumes insects during the dry periods of the year (Ref. 27188).
常見於黑色與清澈的水域溪流與河川, 以及潟湖與其他的外海-峽道棲息地伴隨著白水的河了.(參考文獻 52916) 偏愛和緩的水流與一淤泥的或沙質底部。 相似的其他種的本屬, 它是一個強大的掠食者.(參考文獻 12225) 嚴厲的魚食性; 然而，它在每年的乾時期的時候消費昆蟲。 (參考文獻 27188)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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)
無危 (LC) ; Date assessed: 13 February 2020
人類使用
漁業: 商業性; 水族館: 商業性
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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=0.00724 (0.00461 - 0.01138), b=3.06 (2.93 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.4 ±0.76 se; based on food items.
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 (27 of 100).
