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<br />Appendix A. Taxa, densities of richest -targeted habitat periphyton, and sampling date for environmental samples at sites in the Upper Colorado River Basin study unit, 1996-97--Continued <br /> <br />[--, species not found in sample; A, abundance as cells per square centimeter; B, biovolume as cubic micrometers per square centimeter; densities and biovolumes rounded to 3 significant <br /> figures; <br />11, micrometer; <, less than; Site abbreviations are used in this table. See table 1 for full site names] <br />Baker Baker <br />8/96 8/97 <br /> <br />French <br />8/96 <br /> <br />Blue <br />8/97 <br /> <br />French <br />8/97 <br /> <br />Blue <br />8/96 <br /> <br />- <br />.j::.. <br /> <br />DIVISION <br />Family <br />Genus species variety <br />Navicula heufleri minuta <br />Navicula ignota acceptata <br />Navicula luzonensis <br />Navicula medioconvexa <br />Navicula menisculus <br />Navicula minima <br />Navicula minuscula <br />Navicula monoculata <br />Navicula pupula <br />Navicula pygmaea <br />Navicula reinhardtii <br />Navicula rhynchocephala <br />Navicula rhynchocephala germainii <br />Navicula salinarum intermedia <br />Navicula secreta apiculata <br />Navicula seminulum <br />Navicula sp. (15 ANS WRC) <br />Navicula sp. (5 ANS WRC) <br />Navicula stroemii <br />Navicula subalpina <br />Navicula symmetrica <br />Navicula tantula <br />Navicula tenelloides <br />Navicula tripunctata <br />Navicula viridula avenacea <br />Neidium dubium <br />Pinnularia divergens bacillaris <br />Pinnularia subcapitata <br />Reimeria sinuata <br />Rhoicosphenia curvata <br />Stauroneis phoenicenteron gracilis <br />Nitzschiaceae <br />Denticula kuetzingii <br />Nitzschia accommodata <br />Nitzschia acicularis <br />Nitzschia amphibia <br />Nitzschia archibaldii <br />Nitzschia capitellata <br />Nitzschia constricta <br />Nitzschia dissipata <br />Nitzschia dissipata media <br />Nitzschia elegantula <br />Nitzschia fonticola <br />Nitzschia frustulum <br /> <br />A <br /> <br />B <br /> <br />A <br /> <br />B <br /> <br />A <br /> <br />B <br /> <br />B <br /> <br />A <br /> <br />A <br /> <br />B <br /> <br />A <br /> <br />B <br /> <br />25 <br />25 <br /> <br />67,900 <br />24,900 <br /> <br />8 <br /> <br />7,760 <br /> <br />25 <br /> <br />1,640 <br /> <br />8 <br /> <br />628 <br /> <br />25 <br /> <br />9,080 <br /> <br />25 <br /> <br />8 <br /> <br />369 <br /> <br />1,190 <br /> <br />51 <br />25 <br />5,250 <br /> <br />1,880 <br />19,500 <br />1,060,000 <br /> <br />952 <br /> <br />73,600 <br /> <br />25 <br /> <br />4,020 <br /> <br />16 <br /> <br />2,130 <br />