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During July 27 to August 6, 1981, approximately 93 tonnes of blast rock were strategically placed (in clusters) within a 550 m section of Scott Creek, a tributary of the Coquitlam River. The project was undertaken to enhance rearing habitat (shelter) for juvenile trout and salmon in the stream and to assess the durability of modified boulder placements. One to several rock clusters consisting of several large rocks (0.6 m to 1.2 m across) were placed on "pads" of smaller rock (<0.5 m across) in shallow, turbulent riffles. A total of approximately 600 boulders larger than 0.6 m across were installed. Machinery was used to distribute rock to stream-side sites, but all instream work was by manpower only. Labour was provided by provincial fisheries management staff, one volunteer, and young probationers under the Community Service Program of the Coquitlam Probation Office. The project was funded by the joint Federal/Provincial Salmonid Enhancement Program and received enthusiastic cooperation of the Parks and Rec
Yaworski, Barry, Fee, John. 1982. Boulder Introduction to Enhance Salmonid Rearing Habitat in Scott Creek Coquitlam River System. Ministry of Environment. Fisheries Report. FRN215
Topic: Fish and Fish Habitats
Keywords: Scott Creek, Coquitlam River, trout, salmon, habitat, enhancement
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