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) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Alfaro: Taken from Anastasio Alfaro zoologist of the Natural Museum of Costa Rica.
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性; pH range: 6.0 - 8.0; dH range: 5 - 12; 非迁移的. 熱帶; 24°C - 26°C (Ref. 30491)
Central America: Costa Rica, Panama and Nicaragua.
中美洲: 哥斯大黎加，巴拿馬與尼加拉瓜。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 7.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 50894); 8.0 cm (female)
Inhabits waters of low to moderate velocity, between 0 and 300 m elevation. Lives on creeks of more than 0.5 m deep, in ditches and near shorelines of large rivers. Generally swims in small groups at a depth of 20 cm. Insectivorous, the young eat mainly aquatic insects and the adults feed specifically on terrestrial insects (Ref. 36880). Found in a rapidly flowing rainforest stream (Ref. 26130).
在 0 与 300 公尺海拔之间,栖息于低到中速度的水域。 生活在超过 0.5 公尺深的小溪, 在沟渠中与在大河的海岸线的附近。 通常群游于小群鱼群中深度 20 公分。 食虫的, 幼鱼主要地吃水生昆虫而成鱼特别地吃陆栖的昆虫.(参考文献 36880) 发现于快速流动的雨林水流了。 (参考文献 26130)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Gestation lasts for about 24 days. Produces 10 to 30, rarely more, young. Reaches sexual maturity in about 5 or 6 months.中美洲: 哥斯大黎加，巴拿馬與尼加拉瓜。
Rodriguez, C.M., 1997. Phylogenetic analysis of the tribe Poeciliini (Cyprinodontiformes: Poeciliidae). Copeia 1997(4):663-679. (Ref. 26855)
人类利用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00451 - 0.01762), b=3.19 (3.02 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.45 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (tm=0.5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
