There are a couple I have access to in my area, but they seem to fill up with small perch and bluegills early on through mid-winter. Later, like late March, when you have to stand on the dock and chip out a hole, I've had luck with crappies suspended at about 10' deep fishing in 24' of water, fishing with minnows. Off the bottom is usually still just 4"-5" perch and walleye/sauger about the same size. Also usually catch a few medium sized drum, not on purpose though.
This marina is directly connected to the Mississippi river, so I would imagine if a guy put in some time, you'd find pike, bass, and who knows what else in there.