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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/24577

Title: Assessing the Natural Variability in the Fish Communities of the Lakes of the Northern Bruce Peninsula
Authors: Harpur, Cavan Andrews
Advisor: Mandrak, Nicholas E.
Harvey, Harold
Department: Ecology and Evolutionary Biology
Keywords: Bruce Peninsula
aquatic ecology
community ecology
fish communities
Issue Date: 26-Jul-2010
Abstract: To monitor and assess direct anthropogenic impacts on an aquatic system requires knowledge of its natural variation. The goal of this study explored natural variation in the lake fish communities of the northern Bruce Peninsula, which may act as a reference condition for other studies. The results of this study indicated there has been a shift towards more small-bodied, native species present in the fish communities, potentially a result of beaver activity in the area. A second goal was to calculate gear sampling efficiencies to enable the design of efficient monitoring protocols for fish communities in small, shallow lakes. It was concluded that a wide variety of gears are required to assess the fish species composition in a lake. Fine-mesh hoops were the most effective gear; however, saturation was never obtained for boat electrofishing; therefore, additional research is required to determine effectiveness relative to the fine-mesh hoop net.
URI: http://hdl.handle.net/1807/24577
Appears in Collections:Master
Department of Ecology & Evolutionary Biology - Master theses

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