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<br />Table 4. Percent occurrence of food items in striped bass(TL >= 500 mm) <br /> stomachs that contained food, collected from gill nets at Lake <br /> Powell, Utah, 1989-1998. <br />Year 89 90 91 92 93 94 95 96 97 98 <br />Sample size 11 10 37 32 46 39 25 65 35 51 <br />number empty 6 4 15 18 26 28 15 29 25 40 <br />Food item - Percent Occurrence in stomachs containing food <br />crayfish 60 33 14 7 20 45 20 10 27 <br />shad 80 67 86 79 55 36 80 100 70 54 <br />zooplankton 7 5 9 <br />centrarchid 17 20 9 10 9 <br />unid. fish 7 9 10 <br />carp 5 <br /> <br />Table 5. Percent occurrence of food items in striped bass (TL < 500 mm) <br /> stomachs that contained food, collected from gill nets at Lake <br /> Powell, Utah, 1989-1998. <br />Year 89 90 91 92 93 94 95 96 97 98 <br />Sample size 235 169 102 131 166 179 237 382 352 141 <br />Number empty 101 68 51 79 69 68 82 163 170 83 <br />Food item - Percent occurrence in stomachs containing food <br />crayfish 10 11 3 <br />shad 34 73 86 65 79 64 97 79 65 62 <br />zooplankton 55 14 6 27 15 35 1 21 34 29 <br />centrarchid 2 1 1 1 9 <br />unid. fish 4 5 4 6 3 1 2 3 1 3 <br />