Steindachneridion melanodermatum
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Steindachneridion melanodermatum faces severe population declines primarily due to dam construction across its native river systems in southern Brazil, which fragments populations and disrupts spawning migrations. Overfishing has further reduced numbers, as this large catfish is highly valued for consumption and sport fishing. Water pollution from agricultural runoff and urban development degrades the clear, fast-flowing waters this species requires for successful reproduction.
Habitat
This large catfish inhabits clear, fast-flowing rivers and streams in the upper Paraná River basin of southern Brazil, particularly favoring rocky substrates and deeper pools. The species requires well-oxygenated waters with minimal sedimentation for spawning and juvenile development.
