This cant be good at all... http://www.syracuse.com/news/index.ssf/2014/05/high_levels_of_toxic_mercury_found_in_onondaga_lake_birds_bats_new_studies_revea.html#incart_river_default
Round Gobies were captured from Onondaga Lake recently and positively identified by fisheries personel at Shackleton Point. If they haven't spread thru the canals to Cayuga, Seneca and Oneida, its only a matter of time.........