Luther Aadland (video #2)
"The other problem that's created for the stream when we straighten it is that we simplify it. Instead of having a series of riffles and pools and a diversity of habitat, we've made a homogenized habitat with uniform depths and uniform velocities. And this really has an impact on the entire fish community, and instead of having numerous species and a high density and diversity of fish, we tend to have very few fish at all that will occur in this type of homogenous habitat. In natural rivers, we have found up to 300 times higher standing stock of fish like trout, in a meandering stream than one that has been altered and straightened. "