Don't expect to see YP spawn until the water temp stabilizes at 45F-50F; often closer to 50f. The peak spawn is usually 48F-52F lasting for 8 to 19 days. Day length plays a large role in the annual spawning cycle. Spawn has been reported to continue until the water gets 64-66F. To my knowledge, the spawn of YP is not related to moon phase. I've seen female YP as small as 3.75" with eggs (this fish was probably stunted of unknown age, possibly 2 yrs old). I will report here when I see my first YP eggs. Southern Ohio often has YP eggs Mar 6-12, whereas northern OH sees eggs Mar 19-30.
Last edited by Bill Cody; 03/09/12 04:02 PM.
