First off, I tend to overthink things a s well and can appreciate your mathematical approach. Secondly, my experience level with pond management is very limited and I have no experience with YP, SMB, etc. (the northern types of fish). And lastly, in short, if I understand your thoughts...it seems like you are driving towards a same sex population within the species for your pond. Without that, the mathematical approach goes haywire with "what-ifs".
Assuming that the planktons can all be consumed by a forage base or a predictable forage population can be calculated, then the following larger participants in the food chain need a control. Meaning population control in particular and same sex populations would seem to fit the bill. Throw recruitment into the equations and it could go too many directions for adequate confidence in the actual outcome.
As far as moving algae up the food chain...I would suggest keeping it to a minimum, but look forward to a lesson from the experts.
Just my take, I'll be interested in following your thread!
