Hello,
I frequent a section of the Kish's south branch. In several places there are trees and branches that have formed a sort of damn, causing a bunch of flotsam to collect. In one place, it makes the river impossible to navigate in normal water levels. From an ecological standpoint, is this sort of thing a disturbance to the natural cycle, or part of it?
I guess the point of my question is - is it safe to remove these obstacles, or would that mess up the larger ecosystem?