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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 / djupintervall / distribution range Ekologi

; sötvatten bentopelagisk. Tropical

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South America: Brazil.

Size / Vikt / Age

Könsmognad: L_m ? range ? - ? cm
Max length : 3.0 cm SL hane/ej könsbestämd; (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).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator : Costa, Wilson J.E.M. | Medarbetare

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)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Endangered (EN) (B1ab(iii)+2ab(iii)); Date assessed: 23 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00661 (0.00305 - 0.01429), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100). 🛈

Melanorivulus ivinhemensis Volcan, Severo-Neto & Lanés, 2018