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: Brachyrhaphis: Greek, brachys, eia = short + Greek, raphis = needle (Ref. 45335).
More on author: Meek.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性; pH range: 7.0 - 8.2; dH range: 4 - 10; 非迁移的. 熱帶; 23°C - 34°C (Ref. 36880)
Central America: Costa Rica.
中美洲: 哥斯大黎加。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 26130)
简单描述
检索表 | 型态特徵 | 形态测量图
Body and head grayish with fine black line along midside and a black blotch on the anal fin. Tail with a black oval blotch on its base (lacking in some individuals found in Río San Juan). Snout sharp and pointed. Anal fin shorter than head length. B. cascajalensis differs from this species in the absence of the black blotch on the base of the tail (mitochondrial DNA implies that the two are valid) (Ref. 36880).
身体与头部浅灰色的有细黑色的线在臀鳍上沿着侧面中央与一个黑色的斑块。 尾部有黑色的椭圆形的斑块在它的基底。 (没有一些个体发现于圣幻河了) 吻部尖而尖的。 臀鳍短于头长。 B. cascajalensis 有别于这种在那在尾部 (线粒体 DNA 暗示，两者是有效种) 的基底上缺乏黑色的斑块.(参考文献 36880)
Lives in current of low to moderate velocity between 5-50 m of elevation; at temperatures of 23-34°C. Found near the surface along large river banks, but not common in streams. Feeds on terrestrial insects and in small quantity on aquatic insects. Reproduces throughout the year (Ref. 36880).
生活在 5- 之间的低到中速度的水流海拔的 50 公尺; 在 23-34个 ° C. 的温度 沿着大的河岸发现于靠近表面了, 但是不常见于溪流。 吃陆栖的昆虫与在小的量吃水生昆虫中。 繁殖全年度。 (参考文献 36880)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
中美洲: 哥斯大黎加。
Lucinda, P.H.F., 2003. Poeciliidae (Livebearers). p. 555-581. 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, Brazil. (Ref. 50894)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
人类利用
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特别资料
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00374 - 0.01935), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.45 se; based on food items.
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).
