VU

Melanorivulus rubromarginatus

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Melanorivulus rubromarginatus faces severe pressure from agricultural expansion and cattle ranching activities that degrade and fragment its freshwater habitats in Brazil's Cerrado region. Urban development and water extraction for irrigation further reduce available breeding sites, while pollution from agricultural runoff degrades water quality in remaining streams and seasonal pools.

Threat summary

Habitat

This killifish inhabits small freshwater streams, temporary pools, and seasonal wetlands within Brazil's Cerrado savanna ecosystem. It typically occurs in shallow, slow-moving waters with dense aquatic vegetation and soft substrates.

Savanna· major

Other threatened species in RIVULIDAE

EN

Flame Rivulus

Cynodonichthys uroflammeus

Unknown
CR

Campellolebias brucei

Unknown
CR

Hypsolebias gilbertobrasili

Unknown
CR

Kryptolebias campelloi

Unknown

Frequently asked questions

Why is Melanorivulus rubromarginatus classified as Vulnerable?
Melanorivulus rubromarginatus is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Melanorivulus rubromarginatus faces severe pressure from agricultural expansion and cattle ranching activities that degrade and fragment its freshwater habitats in Brazil's Cerrado region. Urban development and water extraction for irrigation further reduce available breeding sites, while pollution from agricultural runoff degrades water quality in remaining streams and seasonal pools.
Where does Melanorivulus rubromarginatus live?
Melanorivulus rubromarginatus occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Melanorivulus rubromarginatus?
The main threats to Melanorivulus rubromarginatus are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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