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TABLE 2 NUMBER AND PERCENT COMPOSITION PER SQUARE FOOT OF ORGANISMS SAMPLED FROM THREE RESERVOIR ENVIRONMENTS IN JULY 1965 Canyon Area Open Area Inflow Area Number of organisms per square foot 12.7 9.7 8.5 Percent of total - all areas 41.10 31.39 27.51 - ------ -- ----------------------- Number of Tendiped larva per square ------------ ---------- - - foot 9.4 8.7 6.3 Percent Tendiped larva 74.01 89.69 74.12 Percent of total - all areas 38.52 -- 35.66 --------- 25.82 ---------- ------------------------ Number of Diptera pupae per square ---------- - foot 1.3 - 1.0 Percent Diptera pupae 10.24 - 11.76 Percent of total - all areas 56.52 - -------- 43.48 ---------- ----------------------- Number of Mollusca per square ------------ -- foot 1.8 1.0 1.3 Percent Mollusca 14.17 10.31 15.29 Percent of total - all areas 43.90 24.39 --- -- 31.71 ---------- ------------------------ Number of other organisms per square ----------- ----- - foot 0.2 - - Percent other 1.18 -- - Percent of total - all areas 100.00 - -- 36