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<br />1'ADLE A-3 <br />DENSITIES (N0./FTZ) AND PERCENT RELATIVE Af1UNUANCES (% RA) OF 11GN't'IIIC PIACRO[NVERTEIIRATES <br />COLLECTED BY SURBER SAPIPLER AT STATION 3, W1LI.IAIIS FORK RIVh:R, <br />NEAR CRAIG, COLORADO, NARCII 31, 1981 <br /> <br />Taxa Rep 1 Rely 2 Rep 3 Rep 4 Plean % RA S.D. <br />a <br />o~ <br />Gastropods (snails) <br />Physidae <br />Physa sp. <br />Ephemeroptera (mayflies) <br />Baetidae <br />Daetis sp. <br />Ephemerellidae <br />Ephemerella sp. <br />1{eptageniidae <br />lleptagenia sp. <br />Rithrogena sp. <br />Leptophlebiidac <br />Paraleptophlebia sp. <br />Tricorythidae <br />Tricory[hodes sp. <br />Plecoptera (stoneflies) <br />Chloroperlidae <br />Alloperla sp. <br />Perlidae <br />Classenia sp. <br />Perlodidae <br />Isogenoides sp. <br />Isoperla sp. <br />Taeniopterygidae <br />Taenionema sp. <br />] 3 1 1.3 0.4 1.2 <br />97 36 22 27 45.5 14.1 34. 8 <br />41 22 26 26 28.7 8.9 8. 4 <br />1 t 2 1.0 0.3 0. 8 <br />102 46 61 91 75.0 23.3 26. 0 <br />3 0.7 0.2 l. 5 <br />1 1 2 1.0 0.3 0. 8 <br />1 1 0.5 0.2 0 .6 <br />2 2 1.0 0.3 1 .2 <br />1 1 4 1.5 0.5 1 .7 <br />24 7 ]4 27 18.0 5.6 9 .2 <br />35 2 4 5 11.5 3.6 15 .7 <br />