Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
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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.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch. Tropical
South America: Brazil.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 3.0 cm SL Männchen/unbestimmt; (Ref. 133464)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenweichstrahlen (insgesamt) : 11; Afterflossenweichstrahlen: 13; Wirbelzahl: 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).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | 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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00661 (0.00312 - 0.01398), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Widerstandsfähigkeit (Ref. 120179) |
hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |