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<br />~ Table 8. Capture data for black bullheads, green sunfish and fathead minnows outside <br />enclosures at The Stirrup floodplain wetland, Green River (RM 276.0) during <br />each sampling period, July 2002. <br />Black bullheads Green sunfish Fathead minnows <br />~ Number CPUE Number CPUE Number CPUE <br />Date Net hours captured Fish/hr captured Fish/hr captured Fish/hr <br />July 23, 2002 190.5 82 0.4 1,326 7.0 4,007 21.0 <br />July 24, 2002 106.7 149 1.4 551 5.2 1,366 12.8 <br />July 25, 2002 102.7 955 9.3 1,591 15.5 707 6.9 <br />~ July 30, 2002 116.0 491 4.2 985 8.5 346 3.0 <br />Totals 515.9 1,677 4,453 6,426 <br />Outside the enclosures fathead minnow CPUE did decline during sampling, resulting in a I~ <br />~ population estimate of 6,319 fish with 95% confidence limits between 5,933 and 6,706 fish. <br />Capture data for black bullhead, green sunfish and fathead minnow caught outside the enclosures <br />in late July are summarized in Table 9. Population estimates for black bullhead and green <br />~ sunfish could not be calculated using depletion techniques because catch-per-unit-effort (CPUE) <br />did not decline during sampling. <br />Table 9. Summary of population depletion-removal estimates for black bullheads, green <br />~ sunfish and fathead minnows in each 0.10 hectare enclosure at The Stirrup <br />floodplain wetland, Green River (RM 276.0) July 30-August 13, 2002. <br />Black bullheads Green sunfish Fathead minnows <br />Area Nhat Lower Upper Nhat Lower Upper Nhat Lower Upper <br />~ Low- 4,465 4,116 4,814 22,456 20,547 24,366 24,031 6,949 41,114 <br />density <br />High- 3,014 2,855 3,173 25,954 17,917 33,991 11,907 0 23,832 <br />density <br />~ is <br />