By Terry Kovarik
It’s been nearly six-decades since Ciscos, a species of Lake Herring, were seen in the bay of Green Bay. Now there are indications that Ciscos are making a comeback. Fisheries Biologist Ted Streka, with the U.S. Fish and Wildlife Service in Green Bay, says a few have been found and the service plans to take to the bay this year to determine where the cisco are coming from.
Cisco populations were decimated in part by the infestation of non-native species like alewives, which fed on Cisco eggs. The species was once a viable commercial fish on all the Great Lakes but remains commonly found only in Lake Superior.