The complete paper can be found in the following document:
Fisheries and Oceans Canada. 2004. A scientific review of the potential environmental effects of aquaculture in aquatic ecosystems. Volume III. Near-field organic enrichment from marine finfish aquaculture (D.J. Wildish, M. Dowd, T.F. Sutherland and C.D. Levings); Environmental fate and effect of chemicals associated with Canadian freshwater aquaculture (R.J. Scott). Can. Tech. Rep. Fish. Aquat. Sci. 2450: ix + 117 p.