Are Mussels Endangered?
Mussel populations have declined alarmingly in recent decades because of siltation, pollution, and competition from exotic mollusks like the zebra mussel. Of the 80 mussel species native to Illinois, more than half are currently threatened, endangered, extirpated, or extinct. We can protect mussels and other aquatic wildlife. Cleaning up our streams and lakes will create healthy habitats where these animals can thrive.