What are the walleye eating?

[hageman]

I’ve been fishing on the rocks at the shoals and the walleye we catch are eating goabies. I’m sure they are sucking up zebra mussels while feeding on the goabies in the rocks.

The shells in the walleye stomachs could also be what's left from the goby's stomachs after the walleyes digest the rest of their meal of these common island-area prey items.

Regarding color, people have long called the walleyes showing more gold color "Canadian fish." It may be caused from coming from more cooler water from north of the border. The Detroit River flow can often run just north of the islands, best seen when its clear water contrasts with the mud or algae stained water coming from Ohio's tributaries, especially after a heavy rain event. Also, fish that are on structure and weeds are often more colorful than the paler walleye and yellow perch orienting over mud flats.