分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: Trigonectes: Greek, trygon = a sting ray + Greek, nekton = swimmer (Ref. 45335).
More on author: Myers.
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; 非迁移的. 熱帶
South America: Tocantins River basin, Brazil.
南美洲: Tocantins 河流域。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 12.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 36579)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 10 - 12; 臀鳍软条: 16 - 17. Diagnosed by having straight mouth cleft; smaller pelvic fin of the male (tip reaching to the base of the 5th anal ray); and the presence of a pale pink stripe along the ventral margin of the male caudal fin (Ref. 26656).
鉴定借着具有直的嘴裂缝; 雄鱼 (顶端延伸到第 5个臀鳍鳍条的基底) 的较小的腹鳍; 而且那有一条白粉红色的斑纹沿着雄鱼尾鳍的下缘.(参考文献 26656)
Bottom spawner, 2 months incubation. Is easy to maintain in the aquarium (Ref. 27139).
底部产卵鱼, 2 个月孵育时间。 容易在水族馆维持。 (参考文献 27139)
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: Tocantins 河流域。
Costa, W.J.E.M., 1990. Systematics and distribution of the neotropical annual fish genus Trigonectes (Cyprinodontiformes, Rivulidae), with description of two new species. Ichthyol. Explor. Freshwat. 1(2):135-150. (Ref. 26656)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
濒危 (EN) (B2ab(iii)); Date assessed: 07 November 2018
人类利用
工具
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 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00661 (0.00312 - 0.01398), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
营养阶层 (参考文献 69278) |
3.4 ±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 (10 of 100). 🛈 |