Classificatie / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Anablepidae (Four-eyed fishes, onesided livebearers & white-eye) > Anablepinae
Etymology: darwini: Named after Leonard Jenyns (1800-1893) and Charles Darwin (1809-1882)..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water; brak water benthopelagisch. Tropical
South America: Brazil.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 3.4 cm SL mannelijk / geslacht onbekend; (Ref. 128887); 5.3 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 8 - 10; Anale zachte stralen: 10; Wervels: 29 - 31. This speices is distinguished from its congeners by the following characters: except for J. lineata, J. onca, J. sanctaecatarinae, J. maculata, J. luxata, by its colour pattern of round or dash-shaped marks forming multiple irregular rows; differs from J. onca and J. sanctaecatarinae by having a swelling between the urogenital opening and the base of the anal fin of females (vs. absent); differs from J. onca by the not having a distinct dorsal convex expansion at subdistal segments of right hemitrichs of sixth anal-fin ray of adult males (vs. present); differs from J. maculata by having the left and right hemitrichs of anal-fin ray six laterally identical in adult males (vs. not laterally identical); differs from J. luxata by having the medial processes of left and right pelvic bones overlapping at the ventral midline (vs. reduced processes not overlapping); and from J. lineata by the dorsal postcleithrum being three times deeper than wide (vs. less than twice as deep as wide) and with half of the caudal peduncle of females having rows of chromatophores segmented into unaligned spots (vs. spots forming lines) (Ref. 128887).
Occurs mostly in brackish water lagoons in sand-spit areas; Phalloptychus januarius and Poecilia vivipara were found in the same habitat (Ref. 128887).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Amorim, P.F., 2018. Jenynsia lineata species complex, revision and new species description (Cyprinodontiformes: Anablepidae). J. Fish Biol. 92:1312-1332. (Ref. 128887)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
