You can use whatever you wish, live or artificial. The gamefish season is still open till the end of Feb. so if you get a walleye you have the choice of keeping it, but the Smallies are catch and release only. Then after the game fish season closes you can still fish there but you better make it very obvious to a CO that your fishing for cats!
"Aqua est Animus, Animus est Bonus"
(Water is life, life is good")