Odontesthes bicudo
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Odontesthes bicudo faces severe population decline primarily due to habitat degradation in its restricted freshwater range. Dam construction and water diversion projects have altered natural flow regimes and fragmented populations. Water pollution from agricultural runoff and urban development further compromises water quality in the limited river systems where this endemic silverside persists.
Habitat
This endemic silverside inhabits freshwater river systems and associated tributaries in southeastern Brazil. The species requires clean, flowing waters with specific temperature and oxygen conditions typical of its restricted geographic range.