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); microschemos: From the Greek mikroschemos, meaning low stature, in reference to the shallow body depth of the species.
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.
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. 热带
South America: Rio Itapemirim drainage in Espirito Santo State, Brazil.
南美洲: 在 Espirito 圣者的 Rio Itapemirim 流域说巴西。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 5.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 57404)
简单描述
检索表 | 型态特徵 | 形态测量图
脊椎骨: 35 - 36. A member of the Astyanax scabripinnis species complex that distinguishes from species outside this complex by having anal fin with 14-18 branched rays and body depth shallow (26.9-29.7% of SL). Differs from other species of the species complex by its shallow body depth (26.9-29.7% SL) and the smaller interorbital width (26.9-30.4% HL) (Ref. 57404).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
在这一个复合体之外从种区别的 Astyanax scabripinnis 复合种的一个成员借着具有臀鳍有 14-18个分支条与体高浅滩 (26.9-29.7% 的 SL) 。 用它的浅身体深度 (26.9-29.7% SL) 与较小的眼间骨宽度 (26.9-30.4% HL) 有别于其他此鱼种复合体的种。 (参考文献 57404) 描述: D.11,9; A. iv-v,15-17; P. i,11-13; V. i,7.(参考文献 57404)
The type locality is about 2 m wide brook with clear water, segments with rapids, riparian vegetation and a substrate of stones and rocks; associated with Characidium sp.,
Neoplecostomus sp. and Trichomycterus sp. (Ref. 57404).
模式标本产地是大约 2条公尺宽小溪,水质清澈的地方, 用急流, 河岸的植物与石头与岩石的一个底部的片段.(参考文献 57404)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在 Espirito 圣者的 Rio Itapemirim 流域说巴西。
Bertaco, V.A. and C.A.S. de Lucena, 2006. Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) from eastern Brazil, with a synopsis of the Astyanax scabripinnis species complex. Neotrop. Ichthyol. 4(1):53-60. (Ref. 57404)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 没有兴趣
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特别资料
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网络资源
基于模型的估算
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01047 (0.00461 - 0.02381), 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) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
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 (12 of 100). 🛈 |