1. Berkman, P.A.: Lewandowski, A.; van Bloem, S.; Garton, D.W.: and Kennedy, G. 1995.Proc. 5 th Internat. Zebra M ussel and OtherA quatic Nuisance Species Conf., Toronto, Can., 12.
2. Binelli, A.; Provini, A; and Galassi, S. 1997.Water, Air, and Soil Poll. (in press).
3. Dermott, R. and Munawar, M. 1993.Can. Jour. Fish. Aquat. Sci. 50, 2298.
4. Carey, I. 1978. U.S. Naval Oceanographic office TN 3432-01-78.
5. Fitzsimons, J.D.; Leach, J.H., Nepszy, S.J.; and Cairns, V.W. 1995.Can. Journal Fish. Aquat. Sci. 52, 578.