Walleyes in Oneida LOVE to eat perch.
It is like the Oneida eyes are set in their ways. Older eyes will not eat gobies but I bet the smaller eyes (under 15") are eating them. They would rather starve than eat gobies! It is strange. Or maybe gobies are the very last resort over baby perch, baby walleye, shad, buckeyes, and mayfly larva?
It seems like the eyes have to learn to eat gobies from birth or when they are old enough to eat them. My guess is that in a year or two we will see them really start to hit the gobies.