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O% <br />TABLE 7 <br />PERCENT BY NUMBER AND VOLUME OF BOTTOM ORGANISMS FOUND IN STOMACH ANALYSIS STUDY IN 1966. <br />DATA COLLECTED FROM THREE SEPARATE RESERVOIR ENVIRONMENTS. <br />Canyon Area Open Area Inflow Area <br />Percent Percent Percent Percent Percent Percent <br />by Number by Volume by Number by Volume by Number by Volume <br />of of of of of of <br />Food Items Food Items Food Items Food Items Food Items Food Items Food Items <br />Diptera' 16.09 14.52 0.78 0.51 0.39 1.40 <br />Amphipoda 1.12 2.16 1.17 1.59 0.04 0.19 <br />Ephemeroptera 0.02 0.03 12.65 10.19 0.00 0.00 <br />Mollusca 0.70 2.38 0.23 1.17 0.08 1.72 <br />Total 17.93 19.09 14.83 13.46 0.51 3.31 <br />•Diptera includes Chironomidae, Simulidae, Culicidae, Tipulidae and Muscidae, although the majority of the organisms were Chironomidae.