分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
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.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: rio Tocantins drainage in Brazil.
南美洲: 在巴西的 rio Tocantins 流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
简单描述
检索表 | 型态特徵 | 形态测量图
Differs from its congeners by having 48-53 perforated scales along the lateral line, a large caudal-peduncle spot, the presence of bony hooks on dorsal, anal, pelvic and pectoral fins of males, one or two vertically-elongated humeral spots, one maxillary tooth and 22-27 branched anal-fin rays (Ref. 56789).
有别于它的同类借着具有 48-53个有排孔的鳞片沿着侧线，一个大的尾柄斑点, 那在雄性的背鳍、臀鳍，腹鳍与胸鳍，一或二个垂直延长的肩部斑点上有多骨的钩, 一个颚的牙齿与 22-27个分枝的臀鳍棘条.(参考文献 56789)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在巴西的 rio Tocantins 流域。
Bertaco, V.A. and P.H.F. Lucinda, 2005. Astyanax elachylepis, a new characid fish from the rio Tocantins drainage, Brazil (Teleostei: Characidae). Neotrop. Ichthyol. 3(3):389-394. (Ref. 56789)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00493 - 0.02437), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
