During certain chemistries in the sediments bound metals can be released from the stable state. Hutchinson in his A Treatsie on Limnology touched on this topic. I am not a chemist and do not know all the specifics of the topic. More research needs to be conducted on the fate of Cu in aquatic habitats under varying conditions. A fisheries grad student at BGSU is looking into the lack of YP recruitment in a couple local municipal reservoirs - long term copper sulfate usage is one subject being investigated.

Last edited by Bill Cody; 10/07/22 10:47 AM. Reason: changed Cu to copper sulfate

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management