Medionidus walkeri
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Medionidus walkeri faces severe population decline primarily due to habitat degradation from dam construction and water diversions that have altered natural flow regimes in its river systems. Sedimentation from agricultural runoff and urban development has degraded water quality and buried suitable substrate for reproduction. The species' dependence on specific fish hosts for larval development makes it particularly vulnerable to declining fish populations caused by habitat fragmentation and water quality deterioration.
Habitat
This freshwater mussel inhabits clean, flowing waters of medium to large rivers with stable gravel and sand substrates. It requires well-oxygenated water with minimal sedimentation and depends on specific fish species as hosts for its larval stage.
