Lou Heron,
I only have this current growing season as personnal experience with Tilapia but based on stocking Tilapia in three different ponds of different sizes, I can categorically say that 1) yes, there is no question that the bass in all three ponds have benefited significantly(as well as the Bluegill) from the Tilapia stocking and 2) my algae problems, which varied from mild to severe in the three ponds, is no longer a problem in any of the ponds.
After the die-off this year, I plan to write a "white" paper summarizing my Tilapia experience for anyone interested.
I would very much like to see real evidence of where Tilapia stocking has hurt the bass fishing...and an explaination of how that happened. Based on my experience, which granted is limited, that does not seem like a believable outcome.