Ecological restoration options for Clear Lake and South Lake (Riding Mountain National Park), Manitoba
Butcher, Aubrey (author) Ransome, Doug (thesis advisor) Ashley, Ken Bendell, Leah British Columbia Institute of Technology School of Construction and the Environment (Degree granting institution) Simon Fraser University Faculty of Environment (Degree granting institution)
Dissertation/thesis
© Aubrey Butcher, 2017. All rights reserved. No part of this work covered by the copyright heron may be reproduced or used in any form or by any means - graphics, electronics, or mechanical including photocopying, taping, or information storage and receiving systems - without written permission of the author.http://rightsstatements.org/vocab/InC/1.0/
British Columbia Institute of Technology
2017-04-28
102 pages
Options for ecological restoration are discussed for the Clear Lake – South Lake complex of Riding Mountain National Park, Manitoba. This project consisted of a) a review of studies conducted on Clear Lake and South Lake and b) a stream water quality sampling program. The review of previous studies was to gain an in-depth understanding of historical processes which shaped Clear Lake and South Lake. Previous condition, current condition and ecological stressors are all identified based on literature from Riding Mountain National Park. The stream water quality sampling program identifies major sources of nutrients into Clear Lake. Ecological restoration options pertain specifically to the Clear Lake – South Lake complex. South Lake restoration options include supplemental planting, dredging and chemical treatments. A novel technique designed to disrupt wind driven nutrient loading is also discussed. These methods are designed to return the South Basin to a macrophyte dominated system. Addressing hypolimnetic oxygen deficiency, two forms of hypolimnetic aeration are discussed to improve water quality in Clear Lake including a ‘Full lift’ design as well as a Speece Cone. Three options regarding the isthmus and connectivity between Clear Lake and South Lake are examined including a fishway installation and a wattle fence installation.
Restoration ecology Lake restoration Water quality
electronic
Master of Science