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); totae: Named from Tota, nickname of Adelinyr Azevedo de Moura Cordeira, in recognition of her contribution to MHNCI fish collection..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: Rio Cascata of the upper rio Iguaçu basin in Brazil.
南美洲: 在巴西的上面 rio Iguacu 流域的 Rio Cascata。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 56783)
简单描述
检索表 | 型态特徵 | 形态测量图
Distinguished from most species of Astyanax by the vertically elongated humeral spot, slightly expanded above the lateral line to posterodorsal margin of opercle, followed by a midlateral dark stripe expanded from the humeral region to the median caudal-fin rays, maxilla with 2-5 teeth (usually 3) and anal fin with 15-18 branched rays (Ref. 56783).
垂直地与 Astyanax 的大多数鱼种区分了藉由瘦长的肩部斑点,些微地上方侧线到扩大了鳃盖的背部后方边缘, 跟随着一条侧面中央的深色斑纹扩大从肱骨的区域到中动脉尾鳍鳍条, 颚骨有两个 -5个齿 (通常 3) 与臀鳍有 15-18个分支条.(参考文献 56783)
描述: D. ii, 9; A. iii-iv,15,16,17,18; P.10-14; V.8.(参考文献 56783)
Found in headwater stream with clear water, light to moderate water current and bottom consisting of stones, sand and moderate amount of vegetal debris (Ref. 56783). Feeds most frequently on microcrustaceans (Cladocera and Copepoda), insect larvae (Chironomidae), adult insects and plant fragments (Ref. 56783).
发现于源头的水流了，水质清澈的地方, 淡色到中等的水流而且底部包含石头，沙子与中等量的植物残枝.(参考文献 56783) 在小型甲壳类动物 (枝角目浮游动物与桡脚类) ，昆虫幼生 (摇蚊) ，昆虫成虫与植物碎片上为食得最时常。 (参考文献 56783)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 在巴西的上面 rio Iguacu 流域的 Rio Cascata。
Ferreira Haluch, C. and V. Abilhoa, 2005. Astyanax totae, a new characid species (Teleostei: Characidae) from the upper rio Iguaçu basin, southeastern Brazil. Neotrop. Ichthyol. 3(3):383-388. (Ref. 56783)
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this 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).
