"A number of things could lower the perch stocks in Lake Michigan, and overfishing is one of those," Rutherford says. "There's also habitat alteration due to exotic species coming in like zebra mussels. These are all factors that could lower the nursery habitat. Combine that with overfishing of adults and this is what brings the yellow perch population down."
Rutherford says nuisance species such as the zebra mussel are changing habitats and affecting the food available for young fish. A recent study showed zebra mussels had nearly eliminated diporeia, a crucial food for whitefish, from lakes Michigan and Huron. "People should be concerned," he says.
Before heading to work Friday, Michael Trombley, executive chef at the Golden Mushroom in Southfield, saw a cooking segment on the Food Network featuring Chilean sea bass. Trombley was dismayed, saying the network "should know better." Because of TV segments like that and other things, Trombley says there is an ignorance out there about the overfishing problem.
"Stupidly we are overfishing," Trombley says. "Fish will be wiped off the planet. Why are we doing this?" He thinks chefs and restaurant owners can do a lot to educate diners, either by word of mouth or by describing how fish are caught on the menu. "If people were educated about it, we wouldn't be overfishing," Trombley says. "If we're more aware as consumers and as restaurateurs and create less of a demand, hopefully we can make an impact."
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