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Industrial resource development in Canada’s boreal forest has resulted in several thousand hanging culverts and many other stream crossing structures. These structures disrupt ecological connectivity in streams, which degrades and reduces available fish habitat.

This project determines and compares the characteristics of culverted, bridged and undisturbed streams. Differences in depth, water velocity, turbidity, temperature and dissolved oxygen are recorded, as well as any changes in fish communities.

Once the impact of these stream crossings has been determined, cost-benefit curves can be developed to prioritize habitat restoration.
 

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