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); orthodus: Name from latinized Greek ‘orthodon’, meaning ‘straight tooth’, referring to the straight posterior surface of the inner premaxillary teeth and the cusps, which was used to distinguish this species from A. bimaculatus..
More on author: Eigenmann.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶; 24°C - 28°C (Ref. 36880)
South America: Colombia.
南美洲: Atrato 河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 10.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 91755)
简单描述
检索表 | 型态特徵 | 形态测量图
Predorsal midline with a continuous series of scales covering more than three quarters
of the distance between the posterior tip of supraoccipital spine and dorsal-fin origin and the caudal-peduncle spot restricted to the midlateral axis of the body, not extending on to the dorsal and ventral margins of bases of caudal-fin rays (Ref. 119406).
Recorded in streams and ponds between 1 and 60 m elevation. Schools are found in waters ranging from stagnant to swift current at temperatures of 24 to 28°C. Feeds on seeds, terrestrial and aquatic insects (Ref. 36880).
在 1 与 60 公尺海拔之间的溪流与池塘中记录。 鱼群被发现于范围从的水域污浊的对湍急的水流在 24 到 28个 ° C. 的温度 吃种子，陆生与水生昆虫。 (参考文献 36880)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: Atrato 河流域。
Ruiz-C., R.I., C. Román-Valencia, D.C. Taphorn, P.A. Buckup and H. Ortega, 2018. Revision of the Astyanax orthodus species-group (Teleostei: Characidae) with descriptions of three new species. European Journal of Taxonomy 402:1-45. (Ref. 119406)
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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=0.01738 (0.00782 - 0.03863), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.9 ±0.37 se; based on food items.
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).
