<div class=”d4p-bbt-quote-title”>CaptainMusky wrote:</div>
I have seen perch full of crayfishLots of fish eat crayfish. Stomach content studies have shown that up to 80% of a smallmouth bass’s diet consists of crayfish out of inland freshwater lakes/rivers.
In the Great Lakes, gobies are the main food source now.
I’m skeptical that any species of freshwater fish can frequently consume and digest zebra mussels though.
I was catching whitefish (not tullibees) on a north central lake and everyone of them was loaded with zebra mussels. I think eventually any fish that typically feeds on mollusks will eventually add them to their diet.