分类 / Names
俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii
辐鳍鱼纲 (条鳍鱼) >
Characiformes (Characins) >
Serrasalmidae ()
Etymology: Piaractus: Greek, piar = fat, the side with grease of a body + Greek, aktos , ago = to carry.
环境 / 气候 / 范围
生态学
; 淡水 大洋性; pH range: 4.8 - 6.8; dH range: ? - 15. 23°C - 28°C (Ref. 2060), preferred ?; 23°N - 11°S
South America: Amazon and Orinoco River basins (Ref. 39031). Reported from Argentina (Ref. 9086).
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 52 - ? cm
Max length : 88.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); 最大体重: 25.0 kg (Ref. 2060); 最大年龄: 28 年 (Ref. 39139)
Juveniles mimic Serrasalmus nattereri. Feeds on insects and decaying plants (Ref. 32894). Possesses powerful dentition that can cause serious bites (Ref. 4537). An important foodfish (Ref. 12202).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Assuming standard charicid mode of reproduction. Replace ASAP.
Ortega, H. and R.P. Vari, 1986. Annotated checklist of the freshwater fishes of Peru. Smithson. Contrib. Zool. (437):1-25. (Ref. 6329)
CITES (Ref. 94142)
Not Evaluated
人类利用
渔业: 低经济; 养殖: 商业性; 水族馆: 商业性
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.01011 - 0.02987), b=3.11 (2.96 - 3.26), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 2.5 ±0.22 se; Based on food items.
回复力 (Ref.
69278): 低的, 最小族群倍增时间4.5 - 14 年 (tm=7; tmax=28).
脆弱性 (Ref.
59153): High to very high vulnerability (66 of 100) .
