TY - Generic T1 - Effect of Stream Acidification on Periphyton Composition, Chlorophyll, and Productivity. Y1 - 1986 A1 - Mulholland, P.J. A1 - Elwood, J.W. A1 - Palumbo, A.V. A1 - Stevenson, R.J. JF - Canadian Journal of Fisheries and Aquatic Sciences VL - 43 ER -