CR

Atlantirivulus nudiventris

Declining

Overview

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

Atlantirivulus nudiventris faces severe threats from urban expansion and agricultural development in its extremely limited range along Brazil's Atlantic coast. The species' dependence on pristine freshwater streams makes it particularly vulnerable to water pollution from industrial runoff and domestic sewage. Climate change poses an additional threat through altered precipitation patterns that could disrupt the delicate hydrological balance of its coastal stream habitats.

Threat summary

Habitat

This critically endangered killifish inhabits small freshwater streams and shallow pools in coastal Atlantic Forest regions of southeastern Brazil. The species requires clean, well-oxygenated waters with specific temperature and pH ranges typical of pristine Atlantic coastal watersheds.

FRESHWATER· major