Pond Boss Forums INTRO Questions & Observations Bluegill breeding article

When I originally heard of BG spawning multiple times each year, I envisioned the same fish spawning over and over. But, if I now understand the situation more clearly, it is more the case of some of the BG spawning during the first time window (full moon? I'm still unsure how much of that "spawn during the full moon" legend is fact and how much is Farmer's Almanac quality CW.) and others spawning later (due to later maturation, poor RW/condition early in the season, being beat out for nesting sites early on, etc.). So it's kind of a "rolling spawn," where some BG may spawn more than once but much of the "multiple"ness comes from different BG being out of synchronization for one reason or another.

Dr. Dave & BC (et. al.):

Could Northern waters where a single BG spawn predominates be due to local conditions (available nesting geography, BG population demographics, population structure of other species, water temperature vs. time of year, etc.) which limit or focus the BG spawning activity to a single time window? (The longer I make that question, the more it sounds like "Could the increased luminosity experienced in early morning be due to the sun coming up over the horizon?" so maybe the answer is obviously yes.)