Please welcome Eyoyo Underwater Fishing Cameras.https://amzn.to/3siEgXn
Landlocked alewife population in there. Going to be all about trolling the basins.Fish them through the ice just like you do crappies. But you'll have to move to find them.
Start with a map of the lake, I have fished this lake once before and had limited success.Tight linesERIEDIVER
check out Google earth too, you'll see more structure.