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Samples taken near shore were in 3-4 inches o_' water with generally <br />mere sediments and little current. Samples taken offshore were in 12-1E <br />• inches of water with moderate current and less fine sediments. <br />Table 5-1 summa=lses the number of species, density and biomass <br />of organisms co llected by date, station,and sample. <br />Fhrther detail on the number of species, density and biomass is <br />provided in Table 5-2 and -3. <br />Basic data for all taxa by sample, date,and station is shown in <br />Tables 5-4, -5 and -6 for the three sampling periods. <br />5.2.1 Species <br />Over the three sampling periods a mlr.imum of 77 taxa of benthic <br />invertebrates were identified' Cf the insects, this included 9 families <br />of flies (Diptera), 2 families of t:ue bugs (Hemiptera), 4 families of <br />beetles (Coleoptera), 2 families of dragonrlies~damselflies (Odonata) <br />• 5 families of caddisflies ~Trichoptera), 4 families of stoneflies (Plecoptera), <br />and 5 families cf mayflies (~hemeroptera). In addition to insects there <br />were several taxa of snails, leeches, flatworms, crustaceans, nematode <br />worms, oligochaete worms, and mites, Table 5-7 presents a phylogenetic <br />listing of the major taxonomic groupings and the lowest data to which <br />organisms were identified. <br />The true flies (Dirtera) had the greatest number of species throughout <br />the study with 21 chironomid and 10 non-chironomid species. caddisflies <br />(T~•ichoptera) xere next with 10 species, followed by beetles (8), mayflies (6), <br />and stoneflies (6). Of the nor.-insect groups, the snails had the greatest <br />number of species (4). The Odonates were least plentiful in species, only <br />one for each sample date, although 2 species were found over the whole study. <br />• T.:e_re was no attempt made to further identify mites, nematodes, and <br />oligochaetes, (except for a few xell known forms), however there are <br />undoubtedly mazy species of these organisms isesent. <br />5-3 <br />