2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/20/2019 | 12:00 PM - 12:15 PM | STRATEGIC MANAGEMENT OF ATLANTIC SALMON THERMAL REFUGES IN THE RESTIGOUCHE RIVER WATERSHED | 151 ABC
STRATEGIC MANAGEMENT OF ATLANTIC SALMON THERMAL REFUGES IN THE RESTIGOUCHE RIVER WATERSHED
Extended low flow events resulting in warmer water temperatures are an emerging problem in eastern Canadian rivers. In the context of climate change, thermal refuges are increasingly becoming key habitats for resilient Atlantic salmon populations. Evidence-based decision-making is at the forefront of our collaborative partnerships with indigenous communities to protect Atlantic salmon habitat. Therefore, between 2011 and 2013, we acquired high resolution optical and thermal imagery on 862 km of river, creating a database of 1825 classified thermal refuges throughout the Restigouche River watershed. This comprehensive mapping enabled us to create a decision matrix tool based on refuge type to help managers prioritize efforts towards identifying, mapping, preserving and enhancing these critical habitats for Atlantic salmon. Our recent management efforts, to mitigate climate change-driven habitat loss, target thermal refuges types that can be protected under conservation agreements with land-owners. Detailed mapping of the drainage areas of these thermal refuges using LiDAR will allow us to identify catchment area and identify land-use practices that threaten cold-water persistence that Atlantic salmon rely upon. This project is a perfect example of how fundamental research on river thermal regimes can inform local management efforts.
- Fish
- ClimateChange
- Management
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Presenters/Authors
Carole-Anne Gillis
(), Gespe'gewaq Mi'gmaq Resource Council, gilliscaroleann@hotmail.com;
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Pascale Gosselin
(), Gespe'gewaq Mi'gmaq Resource Council, pgosselin@gmrc.ca;
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David Leblanc
(), Restigouche River Watershed Management Council, restigouche@globetrotter.net;
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Stephen J Dugdale
(), University of Nottingham, Stephen.Dugdale@nottingham.ac.uk;
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