. . "Canada. Department of Fisheries and Oceans." . . "Bayfield Institute." . . "Acid rain Canada, Southeastern Measurement." . . "This paper presents research using recent databases from over 2,000 water bodies to determine the pH (acid/alkaline) range of occurrence and regional pH minima for various aquatic biota (zooplankton, macroinvertebrates, fish, amphibians, and water birds) in southern Ontario. Multivariate logistic and linear regression models are developed to predict the occurrence and taxonomic richness of certain broadly distributed taxa for use in current national acid rain modelling efforts. The paper initially presents pH ranges for specific species and groups, and using these ranges, it develops a theoretical species richness or proportional response distribution for several taxonomic groups. Multivariate approaches are used to examine the important factors which affect distribution of certain species. Finally, the paper discusses how species richness, or the number of species in a taxonomic group, is affected by key factors such as pH, water body size, and dissolved organic carbon content."@en . "Species richness and species occurrence of five taxonomic groups in relation to pH and other lake characteristics in southeast Canada"@en . . . . . "Species richness and species occurence of five taxonomic groups in relation to pH and other lake characteristics in southeastern Canada" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Species richness and species occurrence of five taxonomic groups in relation to pH and other lake characteristics in southeastern Canada"@en . "Species richness and species occurrence of five taxonomic groups in relation to pH and other lake characteristics in southeastern Canada" . . . . . . . . "Species richness and species occurrence of five taxonomic groups in relations to pH and other lake characteristics in southeastern Canada"@en . . . "Publications officielles" . . . "Canada. Environment Canada. Ontario Region." . . "Great Lakes Laboratory for Fisheries and Aquatic Sciences." . . "Poissons, Effets de la pollution de l'eau sur les." . . "Canadian Wildlife Service. Ontario Region." . . "Acid pllution of rivers, lakes, etc. Canada, Southeastern." . . "Aquatic organisms Effect of water quality on Canada, Southeastern." . .