Clayton Falls Project Water Use Plan Aquatic - BC Hydro

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Clayton Falls WUP Aquatic Productivity Monitoring Program Year 1, 2005 Photo 7: Benthic Invertebrate collection, February 2006. Photo 8: Snorkel observations in Reach 3. Kynoch Resources
Clayton Falls WUP Aquatic Productivity Monitoring Program – Year 1, 2005 3. RESULTS Kynoch Resources’ observation and assessment of stream channel conditions of Clayton Creek between September 10, 2005 through February 26, 2006, confirmed site dimensions and physical habitat characteristics initially described in the Water Use Plan Consultative Committee Report (BC Hydro, 2003). Reach boundaries were confirmed and sites were selected for benthic invertebrate basket placement and fish sampling. On September 10, 2005, Kynoch Resources commenced field activities with preliminary site selection and placement of benthic invertebrate sample baskets. Field activities descried in this report included site visits and assessments completed between September 2005 and February, 2006, including: • Sept. 10 benthic invertebrate basket placement; • Sept 13 fish sampling; • September 20 supplementary snorkelling (Reach 3) • November 8 basket observations; • November 15 basket retrieval; • January 28 basket replacement; and, • February 26 secondary basket retrieval and invertebrate sampling. Activities completed beyond March 31 2006 will be reported under a separate 2006 report cover. 3.1 Fish Collection Results Fish Collection activities at Clayton Creek were completed in Reaches 2 and 3 during field sampling on September 13, 2006. Ron Ptolemy of BC Ministry of Environment supplied equipment used by MOE for similar sampling throughout the Bella Coola Valley and owing to equipment and protocol familiarity, accompanied the field team as field leader for fish collection. 3.1.1 Site Data Site habitat data were collected on standardized MOE site cards. Data for each site appear in Tables 2 and 3 below. Site CF1 was located in Reach 2, approximately 20 m downstream from the base of Clayton Falls (Figure 1). The site was approximately 112 m 2 and exhibited boulder-cascade stream morphology providing predominantly boulder and cobble habitat cover. Stream width was approximately 14 m at site CF1, with a maximum depth of 0.80 m and mean depth of 0.40 m observed on September 13. Maximum velocity was measured as 0.38 m/s and mean velocity was 0.12 m/s. Discharge at Site CF1 was calculated using a Swoffer velocity meter and depth and width measurements at nine sites across a representative stream transect. Discharge at Site CF1 was determined to be 0.49 m3/s based on measurements made September 13, 2005. Table 2 summarizes data for Site C1. Kynoch Resources 6
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Clayton Falls Project Water Use Plan Aquatic - BC Hydro

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