Cisco explosion in Lake Superior may be largest on record

DULUTH — A small, native fish in Lake Superior is having a population explosion, great news for the big lake’s ecosystem but maybe a mixed blessing for anglers.

The lake’s population of cisco, sometimes called lake herring, have rebounded with a massive group of young fish coming up through the system.

“From what we’re seeing so far, this is the biggest year class we’ve ever seen,” said Cory Goldsworthy, Lake Superior fisheries supervisor for the Minnesota Department of Natural Resources.

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