Last month, the United States Geological Survey released a report confirming four grass carp were born and raised in the Sandusky River. Earlier this year, Ohio Division of Wildlife biologists found one grass carp born and raised in the Maumee River.
This is cause for alarm, because it suggests that a pair of infamous “cousins” of the grass carp, the bighead and silver carp, could thrive in Lake Erie tributaries.
Grass carp are a subspecies of the non-native Asian carp. Though not nearly as destructive as the bighead and silver carp, grass carp are not benign, either. They eat large marine plants, which in turn can affect fish and waterfowl habitat.