ML :

I am not saying you are wrong . I agree gravel will not increase the number of beds. I don't think BG are into second homes and mortgages. \:D One per adult male per spawning event is enough.

There is a lot to BG spawning, hatching, recruitment and survival to age one, even to age 6 weeks or 6 days. A whole lot more than spawning #s and LMB/CC/Crappie/YP/fish predation . For example certain types of plants harbor a certain type of small hydra like zooplankton which if in close proximity to spawning beds can cause problems as they kill and eat lots of small larval BG at swim up . We just thought that BG eating plankton was a one way street -- not.