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Report: 2018 Dinosaur Reservoir Habitat Structure Monitoring PF19-01
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Dinosaur Reservoir was formed in 1979 with the completion of the Peace Canyon Dam, which backs water up into a bedrock canyon for 21 km to the tailrace of W.A.C. Bennett Dam. Several studies conducted on the reservoir have postulated that fisheries potential is low because the steep drop off along most of the shoreline limits the amount of littoral habitat available.
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Author: Randy Zemlak
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Old Reference Number: PF19-01
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Old Reference System: FWCP Fish Wildlife Compensation Program - Peace
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Date Published: Sep 2018
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Report ID: 55496
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Audience: Government and Public
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The bathymetry of Dinosaur Reservoir is extremely steep and littoral areas are largely absent (Pattenden and Ash 1993). In addition, a lack of aquatic vegetation and structure in the existing littoral areas further reduces fisheries capabilities.
In 2001, a boat electrofishing program was started by the former Peace/Williston Fish and Wildlife Compensation Program (PWFWCP) to monitor fish populations in the littoral area. The boat electrofishing program established index sites along the shoreline of the reservoir.
Wherever there was existing woody debris (fallen trees etc.) there was a noticeable increase in fish numbers (primarily rainbow trout). As a result, in 2002, a program was started to add woody debris to small sheltered bays in the reservoir.
The PWFWCP implemented a five-year habitat improvement project that introduced woody debris structures along the shoreline of Dinosaur Reservoir to increase the amount of available rearing habitat for sport-fish, including rainbow trout. The project included the eventual placement of 84 structures at selected locations in the reservoir and the monitoring of fish use at treatment and control sites (Blackman et al 2004, Blackman and Cowie 2005, Bouillon 2014). The shoreline enhancement structures constructed between 2002 and 2006 are located in the lower two thirds of the reservoir.
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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 - Rainbow Trout - Oncorhynchus mykiss |
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Region - Omineca |
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Fish and Fish Habitat - Habitat and Stream Assessment |
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Watershed Groups - 230 - Peace River |
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