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This is a field course designed to provide students with practical, hands-on experience to evaluate the physical, chemical and biological parameters of lake and stream ecosystems. Students will produce a depth contour map and a lake physical features map based on field data. In addition, the Ontario habitat Suitability Index (OHSI) will be used to assess the suitability of stream habitat for specific indicator fish. The purpose, procedure and data analysis for a creel survey will be considered and a creel survey will be conducted on the St. Mary`s River during the salmon run. A freshwater invertebrate collection of 25 identified specimens is required for submission.