Stygobromus nortoni
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Stygobromus nortoni faces primary threats from groundwater contamination and aquifer depletion due to agricultural runoff and urban development in its limited range. The species' obligate dependence on pristine groundwater systems makes it extremely vulnerable to pollution from pesticides, fertilizers, and industrial chemicals that can persist in aquifer systems for decades. Water table lowering from excessive pumping for irrigation and municipal use directly reduces available habitat and can fragment already isolated populations.
Habitat
This obligate groundwater amphipod inhabits pristine aquifer systems and underground water bodies in limestone karst regions. The species requires stable, unpolluted groundwater with consistent temperature and chemical composition, typically found in cave systems and interstitial spaces within sediment layers.
