The only negative "conclusion" I have ever seen is by TPWD on a southern Texas lake that had a LMB decline.....the biologist in charge could not find any cause, so he simply blamed Tilapia, yet had nothing that supported Tilapia being at fault. (in fact, the report stated Tilapia were in all fish tested)..seems to me tilapia were keeping things fed....
Perhaps in that case the lake was so far south that the annual TP die-off doesn't happen?
