分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335).
Eponymy: Astyanax was the son of Hector in Greek mythology. See Homer’s Iliad for details. The reasoning for its use for a genus of characins is not explained. (Ref. 128868), visit book page.
More on author: Meek.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性. 熱帶; 24°C - 28°C (Ref. 36880)
Central America: Lake Managua basin.
中美洲: 湖馬拿瓜流域。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 10.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 36880); common length : 5.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 36880)
Recorded from large rivers, in slow to moderate current at 5 to 20 m elevation. It was taken over sandy bottoms at 26°C. It seems to be principally an herbivorous fish, feeding on diatoms, seeds and other plant material (Ref. 36880).
在 5 到 20 公尺海拔的缓慢到中等的水流中, 记录自大河了。 它在 26个 ° C. 采集沙质底部之上 它似乎主要地是一个食草的鱼, 吃硅藻,种子与其他的植物.(参考文献 36880)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
中美洲: 湖馬拿瓜流域。
Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. 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. 38376)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
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基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00452 - 0.02424), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 2.0 ±0.00 se; based on food items.
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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