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).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; 非迁移的. 熱帶; 22°C - 28°C (Ref. 13614)
South America: Paraguay River basin.
南美洲: 巴拉圭河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 16.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 27139)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 9 - 11; 臀鳍软条: 14 - 17. Having curved mouth cleft; small eyes (the orbital diameter is 7.7-10.0% SL in adult males; adult males have smaller eyes than adult females); large body depth of adults (23.2-26.2% SL); great head (29.2-30.6% SL in juveniles; no adults available) (Ref. 26656).
有被弯曲的嘴裂缝; 小的眼 (眼窝的直径在雄性成鱼中是 7.7-10.0% SL; 雄性成鱼超过雌性成鱼有小的眼); 成鱼 (23.2-26.2% SL) 的大体高; 大的头部 (在稚鱼中的 29.2-30.6% SL; 有用的没有成鱼).(参考文献 26656)
Bottom spawner, 5-7 months incubation. Is easy to maintain in the aquarium (Ref. 27139).
底部产卵鱼， 5-7 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: 巴拉圭河流域。
Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36579)
人类利用
渔业: 商业性; 水族馆: 商业性
工具
特别资料
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网络资源
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=0.00661 (0.00311 - 0.01404), b=3.09 (2.91 - 3.27), 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).
