Alabama hickorynuts and other freshwater mussels are threatened by dams, sedimentation, pollution, climate change and development. There are an estimated 3,404 dams within the Mobile River basin alone ...

The Connecticut Department of Public Health has loosened the consumption advisory it had issued for fish caught in four sections of Hockanum River in East Hartford, Vernon, Manchester and Ellington.

Industrial agriculture, urban development and impoundments have pushed it out of the springs ... “The spring pygmy sunfish is disappearing because its freshwater habitat was polluted and destroyed,” ...