Higgin’s Eye

Higgin’s Eye – more than 250,000
Lampsilis higginsii
Genoa National Fish Hatchery, Genoa, Wisconsin

An important food source for muskrats, otters, and other wildlife, these native pearly mussels are losing ground to competing zebra mussels from abroad. Limited to drainages in the Upper Mississippi, it has been reduced to half its historic range. Industrial runoff also harms this bivalve, as toxic metals and chemicals become concentrated within the mussel.


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