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<br />Table 6. Seine and dip-net catches of fish in the Yampa River, Colorado, 1981-1983. N = number of fish <br /> sampled; %T = % of total number of fish sampled; %FO = frequency of occurrence (% of total <br /> number of samples containing a particular species; based on 423, 295, and 245 samples for <br /> 1981, 1982, and 1983, respec ti vely); asterisk (*) = less than 0.5% of total. <br /> 1981 1982 1983 <br /> Taxon N %T %FO N %T %FO N %T %FO <br />CYPRINIDAE 18,290 96 85 24,628 92 93 12,913 88 89 <br />Cyprinus carpio 2 * * 91 * 10 122 1 14 <br />Gila spp.a 5,823 30 66 8,388 31 77 6,209 43 74 <br />Notropis lutrensis 7,563 40 40 7,305 27 37 478 3 29 <br />N. stramineus 391 2 20 3,390 13 31 757 5 30 <br />Pimepha1es prome1as 1,024 5 18 3,184 12 26 485 3 24 <br />Ptychochei1us 1uciusa 23 * 3 8b * 2 228 2 7 <br />Rhinichthys oscu1usa 2,843 15 60 1,281 5 59 3,846 26 63 <br /> N <br />Richardsonius ba1teatus 620 3 20 980 4 30 786 5 38 ...... <br />Semoti1us atromacu1atus 1 * * 1 * * 2 * * <br />CAT 0 STOMI DAE 715 4 26 2,054 8 43 1,682 12 41 <br />Catostomus commersoni 9 * 7 * 2 13 * 3 <br />C. discobo1usa 527 3 21 1,045 4 28 1,386 9 31 <br />C. 1atipinnisa 179 1 15 1,002 4 36 283 2 28 <br />I CTALURIDAE 11 * 1 30 * 4 9 * 3 <br />Ictalurus punctatus 11 * 1 29 * 4 9 * 3 <br />I. me1as 1 * * <br />------------------------------------------------------------------------------------------------------- <br />