VU

Melanorivulus crixas

Unknown

Overview

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

Melanorivulus crixas faces severe pressure from agricultural expansion and cattle ranching activities that degrade and fragment its wetland habitats in the Brazilian Cerrado. Water pollution from agricultural runoff containing pesticides and fertilizers poses an additional threat to this small killifish. The species' restricted range makes it particularly vulnerable to localized habitat destruction and water quality degradation.

Threat summary

Habitat

This small killifish inhabits shallow freshwater environments including temporary pools, small streams, and seasonal wetlands within the Cerrado savanna ecosystem of central Brazil. The species is adapted to waters with fluctuating levels and relies on interconnected aquatic habitats for breeding and survival.

Savanna· major

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EN

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Frequently asked questions

Why is Melanorivulus crixas classified as Vulnerable?
Melanorivulus crixas 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 crixas faces severe pressure from agricultural expansion and cattle ranching activities that degrade and fragment its wetland habitats in the Brazilian Cerrado. Water pollution from agricultural runoff containing pesticides and fertilizers poses an additional threat to this small killifish. The species' restricted range makes it particularly vulnerable to localized habitat destruction and water quality degradation.
Where does Melanorivulus crixas live?
Melanorivulus crixas 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 crixas?
The main threats to Melanorivulus crixas 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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