Channel cats are starting to spawn in Sturgeon Bay. I was just recently introduced to catfishing up here, I used to fish them in Arkansas when I was younger and have since focused mostly on other species like Musky. Just used a nightcrawler on the bottom near the bridge structures as there is always current flowing toward the lake or back toward the bay (Sturgeon Bay/Green Bay). My wife and I caught 7 cats last night, all small but beats getting skunked! I work with a guy who caught a 30lb channel up here last year so now I need to find some more like that! Good fishing all!