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Report: Theodosia River - Summer Flow Distribution Assessment (Technical Memorandum)
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If you have any questions on the information presented, or require additional report data or attachments, please contact the Report Contact
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The BC Conservation Foundation (BCCF) with support from National Resources Canada is investigating the health of the Theodosia River summer run Chum Salmon population and their river spawning habitat. As part of the study, Kerr Wood Leidal Associates Ltd. (KWL) has been retained to complete a summer flow distribution assessment of the lower Theodosia River below the Olsen Lake diversion.
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Author: Craig Sutherland; Kerr Wood Leidal. Prepared for BC Conservation Foundation
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Date Published: Dec 2011
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Report ID: 33832
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Audience: Government and Public
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The BC Conservation Foundation (BCCF) with support from National Resources Canada is investigating the health of the Theodosia River summer run Chum Salmon population and their river spawning habitat. As part of the study, Kerr Wood Leidal Associates Ltd. (KWL) has been retained to complete a summer flow distribution assessment of the lower Theodosia River below the Olsen Lake diversion. The assessment will be paired with results of a spawning habitat suitability study conducted in the lower Theodosia River by BCCF and Sliammon First Nation staff and used to estimate habitat impacts as a result of the diversion.
The scope of the study included:
1. Project initiation meeting and background data collection;
2. Delineation of upper, middle, and lower watersheds of the Theodosia River;
3. Estimation of August, September, and October discharge frequency curves with and without the diversion using data collected by the Water Survey of Canada (WSC) for the period from 2004 to 2009 except 2007;
4. Prepare comparison of monthly hydrographs of estimated discharges at the mouth of Theodosia River with and without Olsen Lake diversion; and
5. Prepare brief technical memorandum including map and figures.
This project was co-funded by Living Rivers-Georgia Basin/Vancouver Island (2006-11), a program of the BC Living Rivers Trust Fund, and Natural Resources Canada's Regional Adaptation Collaborative in British Columbia.
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Report Type
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Fish and Aquatic Habitat Information |
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Subject
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Fish Species - Chum Salmon - Oncorhynchus keta |
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Fish Species - Salmon (General) - Oncorhynchus spp. |
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Region - Lower Mainland |
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Fish and Fish Habitat - Channel Assessment |
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Fish and Fish Habitat - Habitat and Stream Assessment |
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Watershed Groups - 900 - West Coast Rivers (South of Cape Caution) |
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Water Information - Channel Morphology |
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Water Information - Channel Surveys |
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Water Information - Hydrometric / Hydrology |
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Water Information - Watershed Assessment Studies |
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