We are still not out of the ballpark; they have to make it through this winter. They have to hit 50 millimeters [about 2 inches] to be able to survive over winter. A lot of the ones we looked at in Michigan were in the 30- to 40-millimeter range. They usually quit growing about Sept. 15.

My guess is they are looking for food, and there are not many alewives around. The fact they are eating yellow perch does surprise me.