分类 / Names
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Teleostei >
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).
More on authors: Géry, Planquette & LeBail.
Issue
See Géry, Planquette & Le Bail (1991): for detailed description.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Coppename, Nickerie, Suriname, and Oyapock River basins.
南美洲: Coppename , Nickerie ,蘇利南與 Oyapock 河流域。
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 13.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 38289)
The size of the eyes, which is relatively large in relation to body size, suggests a crepuscular activity (Ref. 12225). Oviparous (Ref. 205).
眼的大小,是相当大的相较于身体大小, 建议一个晨昏的活动.(参考文献 12225) 卵生的.(参考文献 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Distinct pairing (Ref. 205).南美洲: Coppename , Nickerie ,蘇利南與 Oyapock 河流域。
Planquette, P., P. Keith and P.-Y. Le Bail, 1996. Atlas des poissons d'eau douce de Guyane. Tome 1. Collection du Patrimoine Naturel Volume 22, MNHN, Paris & INRA, Paris. 429 p. (Ref. 12225)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00363 - 0.03629), b=2.93 (2.68 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).