Navigational pools aren't their preferred habitat. As their name implies, they prefer riffles and shallow water. |
We don't require monumental surveys; they're all site specific. We don't have a good handle on how significant mussel resources are but we have committees working on trying to come up with a satisfactory way to survey and protect them, and allow dredging to continue. |
We need to look at three things -- how many species there are, how abundant they are and how big an area they occupy. |