分類 / Names
俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii
輻鰭魚綱 (條鰭魚) >
Characiformes (Characins) >
Serrasalmidae ()
Etymology: Piaractus: Greek, piar = fat, the side with grease of a body + Greek, aktos , ago = to carry.
環境 / 氣候 / 範圍
生態學
; 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 / 年齡
Maturity: Lm ?, range 52 - ? cm
Max length : 88.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 40637); 最大體重: 25.0 kg (Ref. 2060); 最大年齡: 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 | 產卵場 | 卵 | 孕卵數 | 仔魚
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
人類使用
漁業: 低經濟; 養殖: 商業性; 水族館: 商業性
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合作者照片Stamps, Coins聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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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).
營養階層 (Ref.
69278): 2.5 ±0.22 se; Based on food items.
回復力 (Ref.
69278): 低的, 最小族群倍增時間4.5 - 14 年 (tm=7; tmax=28).
瀕危性 (Ref.
59153): High to very high vulnerability (66 of 100) .