VU

Pachypanchax arnoulti

Declining

Overview

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

Pachypanchax arnoulti faces severe pressure from habitat degradation in Madagascar's freshwater systems, where deforestation and agricultural expansion have altered water quality and flow patterns. The species is particularly vulnerable to introduced fish species that compete for resources and prey on juveniles. Climate change-induced droughts and irregular rainfall patterns further threaten the limited freshwater habitats this endemic killifish depends upon for survival.

Threat summary

Habitat

This endemic Madagascar killifish inhabits shallow freshwater streams, pools, and wetlands in coastal and lowland regions. The species prefers slow-moving or still waters with dense aquatic vegetation and soft substrates.

Wetlands (inland) - Permanent rivers/streams· majorWetlands (inland) - Bogs, marshes, swamps, fens· major

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Frequently asked questions

Why is Pachypanchax arnoulti classified as Vulnerable?
Pachypanchax arnoulti 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. Pachypanchax arnoulti faces severe pressure from habitat degradation in Madagascar's freshwater systems, where deforestation and agricultural expansion have altered water quality and flow patterns. The species is particularly vulnerable to introduced fish species that compete for resources and prey on juveniles. Climate change-induced droughts and irregular rainfall patterns further threaten the limited freshwater habitats this endemic killifish depends upon for survival.
Where does Pachypanchax arnoulti live?
Pachypanchax arnoulti occurs in Madagascar, and Mozambique. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Pachypanchax arnoulti?
The main threats to Pachypanchax arnoulti 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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