Hopliancistrus tricornis
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Hopliancistrus_tricornis
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Hopliancistrus tricornis faces severe pressure from habitat degradation in the Tocantins River basin, where dam construction and water diversions have altered natural flow regimes essential for this armored catfish's reproduction. Mining activities and agricultural runoff introduce sediments and pollutants that degrade the rocky substrates this species requires for feeding and shelter. The species' restricted range in Brazilian river systems makes it particularly vulnerable to localized environmental changes.
Habitat
This armored catfish inhabits fast-flowing rocky areas of the Tocantins River system in central Brazil, preferring clear waters with strong currents and abundant stone substrates. The species is typically found in well-oxygenated sections of rivers and streams where it can graze on algae and organic matter attached to rocks.
