It's an area of open research, but especially if it doesn't cover 100% of the water body it's fairly benign: https://www.sciencedirect.com/science/article/pii/S

It's an area of open research, but especially if it doesn't cover 100% of the water body it's fairly benign: https://www.sciencedirect.com/science/article/pii/S136403212100914X https://www.sciencedirect.com/science/article/pii/S136403212... For instance, birds perch on the panels, turtles loaf on the floats, fish hide from predators under them. It changes the water body, but not in a way that would be different from, say, trees that have fallen halfway into the water and are shading part of the surface.