Common names from other countries
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: Metynnis: Greek, meta = with, after + Greek, ynnis, -eos = ploughshare (Ref. 45335).
More on author: Kner.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性; pH range: 6.0 - 7.2; dH range: ? - 10. 熱帶; 20°C - 28°C (Ref. 2059)
South America: Amazon and Paraguay River basins.
南美洲: 亞馬遜河與巴拉圭河到阿根廷流域.(參考文獻 9086)
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 18.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 39031)
This fish feeds on fruits and plants, and in extreme conditions or in captivity, may go for fish, crustaceans or maybe meat, but still are not considered dangerous.
持有能引起嚴重的咬的有力的牙齒。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Lays about 150 non-sticky eggs.南美洲: 亞馬遜河與巴拉圭河到阿根廷流域.(參考文獻 9086)
Zarske, A. and J. Géry, 1999. Revision der neotropischen Gattung Metynnis Cope, 1878. 1. Evaluation der Typusexemplare der nominellen Arten (Teleostei: Characiformes: Serrasalmidae). Zool. Abh. Mus. Tierk. Dresden 50(13):169-216. (Ref. 34077)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 November 2018
CITES (Ref. 128078)
Not Evaluated
人類使用
漁業: 低經濟; 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=0.01995 (0.01187 - 0.03353), b=3.08 (2.94 - 3.22), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.9 ±0.32 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 (10 of 100).