The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive
information, make sure you’re on a federal government site.
The site is secure.
The https:// ensures that you are connecting to the official website
and that any information you provide is encrypted and transmitted securely.
Upper Midwest Environmental Sciences Center
Recent records of the crystal darter in the middle Mississippi River
Stewart, J. G., Barko, V. A., Herzog, D. P., Henry, D. B., Ridings, J. W., Kelley, A. F., and Wallace, J. E., 2005, Recent records of the crystal darter (Crystallaria asprella) in the middle Mississippi River: American Midland Naturalist, v. 153, no. 2, p. 199-201.
