Esox...Michigan just started a one legal and done for keeping...you have to pick up a tag, tag the fish, and you can't keep another legal fish until the following season. You can catch and release all you want though...which is what I do. The have been some good studies done that say that the pike fry harvest a ton of walleye fry, due to the fact that the pike spawn earlier than walleye, and even eat Musky fry too. Best fishes to you all.