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<br />Final Report <br /> <br />Study Design . 2-7 <br /> <br />Table 2-2. Description of fish sample gear types or methods used in the Colorado River in Grand Canyon, October <br />1990 - November 1993. . <br /> <br />Sample Gear <br />Code-Description <br /> <br />Total <br />No. Samples <br /> <br />Total <br />Effort <br /> <br />Gill Nets <br /> <br />GP - 1 00'x6'x1.5" gill net <br />GM - 100'x6'x2" gill net <br />GX- Experimental gill net (100'x6'x0.5, 1,1.5,2") <br />Trammel Nets <br />TL - 75'x6'x1.5"x12" trammel net <br />TK - 75'x6'x1''x12'' trammel net <br />TM - 50'x6'x1''x12'' trammel net <br />TN - 50'x6'x1.5''x12'' trammel net <br />TW - 75'x6'x0.5''x1 0" trammel net <br />TV - Floating TK <br />TZ - Floating TL <br />Hoop Nets <br />HL - Large hoop net (4'x16'x1") <br />HM - Medium hoop net (3'x13'x1") <br />HS - Small hoop net (2'x10'x0.5") <br />Minnow Traps <br />MT - Commercial minnow trap (17.5''x9'') <br />Electrofishing <br />EL - 220-V DC <br /> <br />1,321 <br />932 <br />509 <br /> <br />(Hours) <br />2,751 <br />1,945 <br />1,061 <br /> <br />3,235 <br /> <br />3,229 <br /> <br />747 <br /> <br />767 <br /> <br />22 <br /> <br />6 <br /> <br />3 <br /> <br />6,774 <br />6,734 <br />1,550 <br />1,599 <br />43 <br />11 <br />5 <br /> <br />63 <br /> <br />17 <br /> <br />86 <br /> <br />910 <br />270 <br />1,369 <br /> <br />4,562 <br /> <br />85,111 <br /> <br />SA - 1 0'x3'x0 .125" seine <br />S8 - 30'x4'xO.25" seine <br />SG - 30'x5'x0.25" seine <br />GF - Floated gill net <br />TF - Floated trammel net <br />Misc. qualitative seine hauls <br />Angling" <br /> <br />113 <br />83 <br />328 <br />6 <br />2 <br />83 <br /> <br />784 <br />(m2) <br />15,672 <br />10,562 <br />59,057 <br />1,350 <br />22,500 <br /> <br />2,886 <br /> <br />Seines <br /> <br />AN - standard gear <br />AL - standard gear, lures <br /> <br />Total <br /> <br />2 <br />4 <br />19,006 <br /> <br />"no effort recorded <br />