分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Pygocentrus: Greek, pyge = rump + Greek, kentron = sting (Ref. 45335).
Issue
The genus allocation is uncertain, it could be in Serrasalmus Lacepède, 1803 according to Nico 2001. Please send references or more studies are needed.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性. 熱帶
South America: widely distributed in the Orinoco River basin lowlands and tributaries.
南美洲: 廣泛分佈於奧里諾科河河流域低地與支流。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 13 - ? cm
Max length : 27.9 cm TL 雄魚/尚未辨別雌雄; (Ref. 39031); 最大體重: 560.00 g (Ref. 6870)
Has powerful dentition that can inflict serious bites (Ref. 4537).
有能施放嚴重的咬的有力的牙齒。 (參考文獻 4537)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 廣泛分佈於奧里諾科河河流域低地與支流。
Fink, W.L., 1993. Revision of the piranha genus Pygocentrus. Copeia 1993(3):665-687. (Ref. 27142)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00841 - 0.03761), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.6 ±0.76 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 (18 of 100).
