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~. .. <br />• <br /> <br />1• <br /> TABLE 2.04-21 <br />Summary of Taxa Number and Biom ass of Benthic Organisms <br />Taken in Octob er 28 sample -- Four Stations on the <br />North Fork in the Vicinity of 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 /> <br />1/not including [he ch ironomids and ceratopogonids (biting flies) <br />2/minimum number of taxa -- more are likely. <br /> <br />158 <br />