分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers)
鱂形目 (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids)
花鱂科 (Poeciliids) > Poeciliinae
Etymology: Alfaro: Taken from Anastasio Alfaro zoologist of the Natural Museum of Costa Rica.
Eponymy: Don Anastasio Alfaro (1865–1951) was an archaeologist, geologist, ethnologist, zoologist and famous Costa Rican writer. [...] (Ref. 128868), visit book page.
More on author: Regan.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 大洋性; pH range: 6.0 - 8.0; dH range: 5 - 12; 非遷移的. 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 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 7.5 cm TL 雄魚/尚未辨別雌雄; (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 與 300 公尺海拔之間,棲息於低到中速度的水域。 生活在超過 0.5 公尺深的小溪, 在溝渠中與在大河的海岸線的附近。 通常群游於小群魚群中深度 20 公分。 食蟲的, 幼魚主要地吃水生昆蟲而成魚特別地吃陸棲的昆蟲.(參考文獻 36880) 發現於快速流動的雨林水流了。 (參考文獻 26130)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
無危 (LC) ; Date assessed: 06 February 2020
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00461 - 0.01803), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (參考文獻
69278): 3.4 ±0.45 se; based on food items.
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (tm=0.5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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