The invasive black carp has been caught near Indiana for the first time, and wildlife specialists are worried about what that could mean for mussels in the state's waterways.

Two of the fish were caught in June on the Ohio River near Shawneetown, Illinois, about 10 miles south of the Indiana state line, according to Eric Fischer, aquatic invasive species coordinator for the Indiana Division of Fish and Wildlife.

Black carp is one of four species of invasive Asian carp that have been working their way up through the Mississippi and Ohio rivers for years.