This year's booklet of Minnesota fishing regulations carries a new half-page message that departs from the age-old public view that our lakes and rivers are better off without suckers, bullheads, dogfish, gar and other nongame species.
"Don't kill and dump rough fish," the Department of Natural Resources admonishes in its public service advertisement.
The information campaign, launched recently on the DNR's social media channels, will be amped up during the state's traditional fishing opener in mid-May. State Fisheries Chief Brad Parsons said it's designed to reverse prevalent beliefs that nongame fish are "trash" or "junk."
"These are fish we need," Parsons said. "There's still a perception that if it's not a sunfish or another game fish, it's a carp."
Fisheries managers of yore helped plant the culture of disrespect by poisoning so-called "rough fish" to rid them from waterways. Myths have grown up around some species that they stunt walleye production.
With the exception of common carp, a destructive, nonnative fish still targeted by the DNR for mass removal from shallow lakes, nongame species have important roles in the ecosystem, the agency is teaching. Redhorse and other suckers are a vital food source for game fish. Buffalo eat unwanted algae. Gar and dogfish (bowfin) are among the few fish that eat carp. Minnows thrive by eating suckers' eggs. There's also growing interest around the country in targeting certain native, nongame species for table fare and catch-and-release sport.
Just last year, DNR championed a bill at the Legislature that elevated eelpout (burbot) from unprotected rough fish to game fish. The new designation gives DNR the authority to establish a season and bag limit for the species.
Asked if the agency will seek similar protection for other species that can now be caught in unlimited numbers, Parsons said the topic receives ongoing internal discussion. At least two species of rough fish in Minnesota — the black redhorse and black buffalo — are currently designated by wildlife officials as species of special concern, he said.