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18 <br />Table 4. Total catch of fish in gillnets at Gypsum Canyon, 1980-81. <br /> <br /> <br />Species 198021 <br />Number Catch Per ? <br />Captured Gillnet hr <br />(x100) 1981b/ <br />Number Catch Per <br />Captured Gillnet hr <br />(x100) Total <br />Number Catch Per <br />Captured Gillnet hr <br />(x100) <br />Carp 166 3.59 487 13.49 653 7.94 <br />Striped bass 198 4.29 228 6.32 426 5.18 <br />Walleye 90 1.95 309 8.56 399 4.85 <br />Channel catfish 108 2.34 103 2.85 211 2.56 <br />Flannelmouth sucker 68 1.47 8 0.22 76 0.92 <br />Colorado squawfish 45 0.97 4 0.11 49 0.60 <br />Brown trout 13 0.28 18 0.50 31 0.38 <br />Razorback sucker 6 0.13 11 0.30 17 0.21 <br />Largemouth bass 4 0.09 4 0.11 8 0.10 <br />Black bullhead 2 0.04 1 0.03 3 0.04 <br />Northern pike 0 0 2 0.06 2 0.02 <br />Black crappie 0 0 2 0.06 2 0.02 <br />a/Sampling Period: April 26-June 18; Effort 4,620 net hours. <br />b/Sampling Period: May 24-July 22; Effort 3,609 net hours. <br />9Net was 31 m in length.