Ministry of Environment
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Report: Reservoir Wetland Enhancement in the Ash River Watershed BCRP Project Number: 11.W.ASH.03

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The goal of this project was to enhance reservoir habitat in Elsie Lake by investigating the use of artificially created wetland features via the construction of semi-permeable rock berms along the reservoir shoreline that would create isolated areas that could naturally develop into wetlands, and the use of floating vegetation islands that would increase habitat structure and diversity for wildlife.

Author:  E. Wind Consulting

Old Reference Number:  11.W.ASH.03

Old Reference System:  FWCP Fish Wildlife Compensation Program - Coastal

Date Published:  Nov 2012

Report ID:  39518

Audience:  Government and Public

Experts agree that one of the best ways to protect native amphibian populations in the face of environmental stressors such as habitat fragmentation, introduced species, and disease is through habitat protection, especially small, ephemeral wetlands. The goal of this project was to enhance reservoir shoreline wetland habitat in Elsie Lake by meeting the following objectives: -Investigate the possibility of constructing a semi-permeable rock berm along the reservoir shoreline that creates an isolated area that could naturally develop into a wetland. The berm would allow water to flow in and out as it fluctuates within the reservoir but would exclude fish from the wetland(s) to increase amphibian survival and avoid fish stranding. Berms such as this have been used successfully elsewhere to create / protect wetland habitat and to avoid fish stranding (e.g., along the Trinity River in northern California) - Investigate and experiment with the use of floating vegetation islands, that move up and down with water level changes, to increase habitat structure and diversity for wildlife species in reservoirs and wetlands (e.g., the vegetation provides egg attachment sites and cover for amphibians and invertebrates, the island could be used as a nesting platform for waterfowl, etc.).

Report Type
  Fish and Aquatic Habitat Information
 
Subject
  Fish and Fish Habitat - Enhancement Assessment
  Fish and Fish Habitat - Habitat and Stream Assessment
  Fish and Fish Habitat - Lake
  Fish and Fish Habitat - Management
  Fish and Fish Habitat - Research
  Fish and Fish Habitat - Restoration
  Fish and Fish Habitat - Resource Use
  Region - Vancouver Island
  Watershed Groups - 930 - Vancouver Island (West) Rivers
  Water Information - Storage Inventory -Lakes and Reservoirs
  Water Information - Water Management
  Water Information - Water Supply
 


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