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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.
Eponymy: Reverend Leonard Jenyns (1800–1893) was a clergyman and amateur naturalist. [...] (Ref. 128868), visit book page.
More on authors: Lucinda, Reis & Quevedo.
Environment: milieu / climate zone / kisaran kedalaman / distribution range
Ekologi
; air tawar pelagis, permukaan. Tropical
South America: tributaries of the lower Rio Uruguai in Brazil and Uruguay.
Size / Weight / umur
Kematangan: Lm ? range ? - ? cm
Max length : 8.0 cm TL jantan/; (Ref. 59729)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 6 - 9; Sirip dubur lunak: 10; vertebrata, bertulang belakang: 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).
Body shape (shape guide): elongated.
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
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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)
Status IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Acuan
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00527 - 0.01814), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Acuan
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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