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TABLE 2.04-21 <br /> Summary of Taxa Number and Biomass of Benthic Organisms <br />.. Taken in October 28 sample - - Four Stations on the <br /> North Fork in the Vicinity o f Paonia - Octo ber 28, 1976 <br /> Group ~ of Taxa Density(Me[er2 X of Total <br /> Density <br /> Stoneflies 3 7 0.2 <br /> Plecoptera) <br /> Caddisflies 7 42 1.3 <br /> (Trichop[era) <br /> Beetles 3 90 2.9 <br /> Coleop[era) <br />' Mayflies 5 50 1.6 <br /> Ephemeroptera) <br /> Dragonflies 1 2 0.1 <br /> Odona[a <br /> True bugs 2 13 0.4 <br /> Hemiptera) <br /> True flieg 3 18 0.6 <br /> (Dip <br /> Chironomid 182 1300 41.1 <br /> Ceratopogonids <br /> Snails 4 270 8.8 <br /> (Gas[ropeda) <br /> Crustaceans 2 38 1.2 <br /> Copepods <br /> Leaches 1 1 0.1 <br /> Hirudinea) <br /> Arachnoids 1 20 0.6 <br /> (Arachnoidea) <br /> Planarians 1 5 0.2 <br /> Turbellaria) <br /> Oligochaete norms 32 900 28.5 <br /> (Oligochaeta) <br /> Nematode worms 12 3 0.1 <br /> (Nematodes) <br /> TOTAL 57 3100 <br /> 1/not including [he chiro nomids and ceratopogonids (biting flies) <br /> /minimum number of taxa -- more are likely. <br />1• <br /> <br /> 158 <br />•-- _..._.._ _~. __. _ ... .ti.: _ ~ ~ <br />