Chasmocranus brachynemus
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Chasmocranus brachynemus faces severe pressure from deforestation and agricultural expansion throughout its limited range in South American river systems. Dam construction and water diversions have fragmented its freshwater habitat, while sedimentation from upstream mining activities degrades water quality essential for this catfish species. Overfishing in accessible river reaches has further reduced already small population numbers.
Habitat
This freshwater catfish inhabits clear, fast-flowing rivers and tributaries in the Amazon and Orinoco basins. It prefers rocky substrates and well-oxygenated waters with moderate to strong currents.