分類 / 名前
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Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Metynnis: Greek, meta = with, after + Greek, ynnis, -eos = ploughshare (Ref. 45335).
More on author: Kner.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 外洋の; pH range: 6.0 - 7.2; dH range: ? - 10. Tropical; 20°C - 28°C (Ref. 2059)
South America: Amazon and Paraguay River basins.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 18.0 cm TL オス/雌雄の選別がない; (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.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Lays about 150 non-sticky eggs.
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のレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 少数商業の; 水族館・水槽: 商業
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.01193 - 0.03338), b=3.08 (2.94 - 3.22), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.9 ±0.32 se; based on food items.
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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栄養素 (Ref.
124155): Calcium = 195 [88, 504] mg/100g; Iron = 2.78 [1.29, 6.88] mg/100g; Protein = 18.6 [16.4, 20.9] %; Omega3 = 0.469 [0.165, 1.385] g/100g; Selenium = 67.9 [23.8, 199.1] μg/100g; VitaminA = 19.2 [5.6, 67.6] μg/100g; Zinc = 2.12 [1.34, 3.31] mg/100g (wet weight); based on
nutrient studies.
