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) >
Anablepidae (Four-eyed fishes, onesided livebearers & white-eye) > Anablepinae
Etymology: onca: From its color pattern, resembling the wild cat Pantera onca; noun in apposition..
More on authors: Lucinda, Reis & Quevedo.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性. 熱帶
South America: tributaries of the lower Rio Uruguai in Brazil and Uruguay.
南美洲: 在巴西與烏拉圭的 Rio Uruguai 下游的支流。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 5.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 128591)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 6 - 9; 臀鳍软条: 10; 脊椎骨: 30. Having a large dorsal convex expansion at subdistal segments of right half of sixth anal-fin ray of adult males; distinct ovoid to circular dark spots confined to ventral half of flank posterior to pelvic fins; spots gradually more circular towards midventral line; predorsal scales 13-14; series of dashes or spots on body arranged in 6-8 irregular horizontal lines, consistent midlateral pattern absent; no swelling between the urogenital opening and anterior base of anal fin in females; no distinct dark rounded spot on the dorsal pectoral-fin base (Ref. 42933).
在雄性成鱼的第六臀鳍鳍条的右半部的子末梢部片段有一个大的背部中凸的扩充; 对局限于侧面的半边侧面的圆形深色的斑点明显的卵形体在腹鳍后面; 斑点逐渐更圆形的向腹部中央的线; 前背的鳞片 13-14; 在身体上的数列短线或斑点排列成 6-8个不规则的水平线了,一致的侧面中央的图案不存在; 在雌性中的没有在泌尿生殖孔与前面的臀鳍基底鳍之间的膨胀; 没有在背部胸鳍基底上的明显的深色圆形的斑点.(参考文献 42933)
Based on photo submitted, this species grow up to 8.0 cm TL and live for up to 7 years in captivity (P. Petersen, pers.comm. 12/2022).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 在巴西與烏拉圭的 Rio Uruguai 下游的支流。
Lucinda, P.H.F., R.E. Reis and R. Quevedo, 2002. Jenynsia onca, a new species of anablepid fish (Teleostei: Cyprinodontiformes) from southern Brazil and its phylogenetic position. Ichthyol. Explor. Freshwat. 13(1):33-40. (Ref. 42933)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00332 - 0.01582), b=3.23 (3.03 - 3.43), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 2.9 ±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).
