I love having gobies around. I grew up on the belle river on Lake st clair. i fished the area heavily my whole life. Every walleye i harvest in the fall is full of gizzard shad and gobies. In the past few years the walleye have been moving up river to shallow slow moving areas of the river where i catch crappie in the fall. Somewhere you would least expect a walleye. i believe they are following the large schools of shad gobies and crappies that seem to stay in the river for a good two months. As a kid pre goby times the walleye didn't go up river past the train tracks. now during goby times i find them past highway 42 in shallow muddy water. i can remember the first year they entered the river. i was just a kid checking my minnow trap and it was full of gobies, i remember how scared i was because of all the negative reports. ever since they invaded the belle river a very healthy supply of large mouth, musky, pike, crappie, channel cat, perch and bluegill and yes a very rarely trout have learned too call that river home.