分類 / 名前
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Characiformes (Characins) >
Hemiodontidae (Halftooths)
Etymology: Bivibranchia: Latin, bivium = a place where two ways meet; from Latin bi = two + latin, via = way; having or offering two ways; 1877 + Greek, brangchia = gills (Ref. 45335).
Eponymy: Henry Weed Fowler (1878–1965) was an American herpetologist, ornithologist, ichthyologist and artist. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Taxonomic Remarks
No recent work; see Eigenmann (1912: 259) for description.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性; pH range: 5.5 - 7.6; dH range: ? - 25. Tropical; 22°C - 28°C (Ref. 2060)
South America: Negro, Tocantins, Xingu, Tapajós, Madeira, Essequibo, and Orinoco River basins.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 19.2 cm TL オス/雌雄の選別がない; (Ref. 111518); 最大公表体重: 68.00 g (Ref. 111518)
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Distinct pairing (Ref. 205).
Langeani, F., 2003. Hemiodontidae (Hemiodontids). p. 96-100. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38289)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00399 - 0.01146), b=3.15 (2.99 - 3.31), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (参照
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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