Classificação / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: ivinhemensis: Named for its type locality, Rio Ivinhema basin..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
South America: Brazil.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL macho/indeterminado; (Ref. 119399); 3.0 cm SL (female)
Found in marginal areas of small first order streams and in wetlands completely exposed to the sun on a slightly undulating terrain at altitudes ranging from 267 to 315 m a.s.l. One of the wetlands was deep (about 70 cm of maximum depth), with muddy substratum and turbid water, while in the other localities wherein the species was recorded, the areas were shallow, not exceeding 20 cm depth, in crystalline waters with a clayey substrate. Eight species recorded to be co-occurring with were: Aphyocharax dentatus, Pyrrhulina australis, Hyphessobrycon anisitsi, Hyphessobrycon eques, Serrapinnus kriegi, Cichlasoma dimerus, Hoplerythrinus unitaeniatus and Moenkhausia sanctaefilomenae (Ref. 119399).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Volcan, M.V., F. Severo-Neto and L.E.K. Lanés, 2018. Unrecognized biodiversity in a world’s hotspot: three new species of Melanorivulus (Cyprinodontiformes: Rivulidae) from tributaries of the right bank of the Rio Paraná basin, Brazilian Cerrado. Zoosyst. Evol. 94(2):263-280. (Ref. 119399)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00311 - 0.01404), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).