Aquatic Ecosystems Cumulative Effects Assessment Report
AQUATIC ECOSYSTEMS CUMULATIVE EFFECTS ASSESSMENT REPORT Aquatic Ecosystems Cumulative Effects Assessment Report Elk Valley, Kootenay Boundary Region Photo: District of Sparwood DRAFT Aquatic Ecosystems Expert Team Alan Davidson (FLNRORD, Team Lead), Herb Tepper (FLNRORD, Team Lead), Jon Bisset (Ktunaxa Nation), Kristina Anderson (FLNRORD), Peter J. Tschaplinski (ENV), Albert Chirico (ENV), Amy Waterhouse (FLNRORD), Warn Franklin (Teck Coal Ltd), William Burt (FLNRORD), Ryan MacDonald (ALCES Group), Emily Chow (FLNRORD), Cassidy van Rensen (FLNRORD), Taye Ayele (FLNRORD) July 2018 AQUATIC ECOSYSTEMS CUMULATIVE EFFECTS ASSESSMENT REPORT EXECUTIVE SUMMARY The Elk Valley in British Columbia's East Kootenay is rich in biodiversity, culture and economic wealth. Management of cumulative effects in the Elk Valley has been of increasing concern due to resource development and residential and recreational pressures as well as natural events. The Ktunaxa Nation, BC Government, Industry, and other stakeholders have identified two valued components of the Elk Valley that pertain to aquatic ecosystems: 1. Riparian areas have high biodiversity and provide critical habitat for wildlife to live in and move through. They also play a key role in moderating flooding during high streamflow events. In addition, riparian areas provide ecological services to streams and other aquatic habitats by moderating water temperatures, filtering runoff, and acting as a source for large woody debris, among other services. 2. Westslope cutthroat trout (WCT; Oncorhynchus clarki lewisi) are of ecological, cultural, economic, and social importance to both residents and visitors to the Elk Valley. Most notably, the Elk River supports a world-class recreational fishery for this species. WCT are also good indicators of aquatic and watershed health, because they are highly intolerant of high water temperatures and require clean, well oxygenated gravel beds for spawning.
[Show full text]