Variations in the Aquatic Vegetation of the Welland River (Ontario,Canada) Above and Below an Industrial Waste Discharge |
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| Authors: | Michael Dickman Cindy Prescott Klaus L.E. Kaiser |
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| Affiliation: | 1. Biological Sciences Department, Brock University, St. Catharines, Ontario L2S 3A1;2. Environmental Contaminants Division, National Water Research Institute, Burlington, Ontario L7R 4A6 |
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| Abstract: | The zonation of aquatic macrophytes, particularly Typha and Sagittaria sp. and associated periphyton communities, were investigated in relation to industrial point source discharges to the Welland River, Ontario. Severe reductions of macrophyte species densities and macrophyte and periphyton diversity were found immediately below the outfalls with distinct recovery zones in the downstream part. Normal macrophyte and periphyton density and diversity occurred at sites approximately 1.6 km below the outfall. |
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| Keywords: | Macrophytes phytoplankton industrial wastewater water pollution effects |
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