Classificatie / Namen
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: melanopterus: Name 'melanopterus' from the Greek words 'melano' and 'pterus', meaning 'black' and 'fin', in reference to black band on caudal fin of the species.
Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: Brazil.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 3.0 cm SL mannelijk / geslacht onbekend; (Ref. 133464)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 11; Anale zachte stralen: 13; Wervels: 30. This species is distinguished from its congeners by the following set of characters: pelvic fin and pelvic girdle absent or extremely reduced; black band on whole caudal-fin margin present in males, typically more conspicuous on dorsal and ventral portion; conspicuous, wide dark brown bars, oblique anteriorly and wide chevron-like marks posteriorly to middle of flank (Ref. 133464).
Body shape (shape guide): elongated; Cross section: oval.
The species was collected from a small, partially dammed clear-water stream (2.0-8.0 m wide, 0.3-2.5 m deep) with moderate flow, submerged vegetation, grassy banks, and a sand-mud substrate (Ref. 133464).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Nielsen, D.T.B. and W.M. Ohara, 2024. A new restricted-range Melanorivulus (Cyprinodontiformes: Rivulidae) from
the upper rio Guaporé, Chapada dos Parecis, Brazil. Zootaxa 5496 (3):332-342. (Ref. 133464)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 3.1 ±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).
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