Oldtimr I said I was being the devil's advoate. I beg to differ on the fish population. https://www.ducks.org/hunting/waterf...mon-merganser; https://www.answers.com/Q/What_do_cormorants_eat; https://www.mossyoak.com/our-obsessi...ing-your-fish;
I drive over one bridge on a regular basis and I've seen as many as 150+ comorants standing side by side across the breast of the dam (I'm a pretty darn good estimator). Not knowing how many are in the water plus you add in the merganzers in the area and that is a lot of fish taken. Both trash fish and game fish like bass, perch, pike, pickerel, musky etc.that never get a chance to grow.
And just for the record I never said I shot them I just said that those animals were not used sans maybe coyotes for their pelts. As a kid I heard of several people going to the landfill and shooting rats with their 22s but something I never did.