G10, I wouldn't waste my time reporting it. My first report to the Ministry about lamprey was over 30 yrs ago. I received zero info on the creature or what I should do with it. And Alfie, I doubt the MNR has been taking measures on anything for some time. They keep telling me the American Eel is an endangered species. Not up this way! A buddy and me have made numerous reports with absolutely no response. Just caught my second eel of the year tdy, dam near 4' long. I'm sure I'll be good for another 8-10 this yr, Yeah for me!!! Lamprey are a parasite, just like mosquitoes, ticks, leaches, or weeds. If you'll swat a mosquito, or squeesh a tick, or pull a weed, well ya know.