Not sure of the impact on…

Not sure of the impact on fishing, can assume it is large. What I can state as fact is the destruction of trees and other cover caused by these birds. Their waste kills all trees and vegetation. This has caused islands to disappear from erosion. I have seen 2 small islands that have been there for years, just disappear, as the trees that were on the islands died from Cormorants. With no roots from the living trees to hold the soil, they just eroded away. Other larger islands are now bare of all life take the smaller islands west of Pelee Island, there are no trees there now. All of this caused by these birds. Cormorants have a place in this world, just no in the numbers they are at.