分类 / Names
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.
Environment: milieu / climate zone / depth range / distribution range
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
Maturity: 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)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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)
濒危 (EN) (B2ab(iii)); Date assessed: 07 November 2018
人类利用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00315 - 0.03034), b=3.03 (2.78 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±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).
