Hey urban, I second that. I have seen fish on beds well into July at our local lagoon. There is also that alpine lake that the local guide talks about a large mouth spawn in late june. On that particular lake the water temp. and day light are prime well befor june. Just a thought. At my home water there is not enough prime spawning areas for all the able fish to do there thing all at the same time with out being harassed by other spawners.(or fisherman) It also doesn't make sence for all fish to have a magic temp. or time to turn on. I'm sure that for the survival of the species they are all programed a little different and pass that on to there young.(a late spawner will bread late spawning offspring.) just my thoughts, but I really dont know what I'm talkin about.:-)