ice fishing duluth harbor for walleye, perch, crappie, and pike

hi there, I am wondering how late in the season you guys catch walleyes in the st louis river Duluth harbor area when ice fishing?
I am wondering if you guys also catch perch, crappie, or pike in the bay and harbor area when ice fishing? also, what depths should I be looking for when targeting these species fo fish? thanks in advance!!