Tracking the Yellow Perch

Is the perch an aquatic 'Canary in a Coal Mine'? They may be...

Dr. Hal Schramm grew up fishing yellow perch in Lake Michigan. These are fish that are sometimes seen as a nuisance to anglers.

He noticed population peaks and crashes over the years, and it turns out that these populations mirrored other fish that have faster growth rates among females.

So next time you get frustrated catching perch, understand that if that population is on the upswing, so are most of the others.


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