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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 /> [__, 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 /> ].I, micrometer; <, less than; Site abbreviations are used in this table. See table I for full site names]
<br /> DryFk DryFk DryCk DryCk Reed Reed
<br /> 8/96 8/97 8/96 8/97 11/96 11/97
<br /> A B A B A B A B A B A B
<br /> DIVISION
<br /> Family
<br /> Genus species variety
<br /> Navicula heufleri leptocephala 82 19,800 621 149,000
<br /> Navicula heufleri minuta
<br /> Navicula ignota acceptata
<br /> Navicula luzonensis 2,950 267,000 2,020 183,000
<br /> Navicula medioconvexa
<br /> Navicula menisculus 3,660 926,000
<br /> Navicula minima 3,370 88,200 9,160 240,000
<br /> Navicula minuscula
<br /> Navicula monoculata
<br /> Navicula pupula 841 513,000
<br /> Navicula pygmaea 841 967,000
<br /> Navicula reinhardtii
<br /> Navicula rhynchocephala
<br /> Navicula rhynchocephala germainii
<br /> Navicula salinarum intermedia 8,410 3,070,000
<br /> Navicula secreta apiculata 289 34,800 357 70,800 2,520 304,000 825 99,200
<br /> Navicula seminulum
<br /> Navicula sp. (15 ANS WRC)
<br /> Navicula sp. (5 ANS WRC)
<br /> Navicula stroemii 1,160 210,000
<br />w Navicula subalpina
<br />tv
<br /> Navicula symmetrica 879 382,000 841 366,000 137 59,800
<br /> Navicula tantula
<br /> Navicula tenelloides 220 10,200
<br /> Navicula tripunctata 8,840 8,120,000 932 856,000 275 253,000
<br /> Navicula viridula avenacea 3,840 4,440,000 2,520 1,810,000 932 1,080,000 2,060 1,480,000 4,510 5,210,000
<br /> Neidium dubium
<br /> Pinnularia divergens bacillaris
<br /> Pinnularia subcapitata
<br /> Reimeria sinuata 4,210 848,000 4,350 336,000 1,510 305,000 2,540 196,000
<br /> Rhoicosphenia curvata 439 105,000 74,900 17,900,000 3,420 817,000 845 202,000
<br /> Stauroneis phoenicenteron gracilis
<br /> Nitzschiaceae
<br /> Denticula kuetzingii 7,090 4,050,000
<br /> Nitzschia accommodata
<br /> Nitzschia acicularis
<br /> Nitzschia amphibia 55 9,420 841 144,000
<br /> Nitzschia archibaldii
<br /> Nitzschia capitellata
<br /> Nitzschia constricta 434 1,230,000
<br /> Nitzschia dissipata 579 121,000 1,180 273,000 29,500 6,130,000 9,940 2,300,000 550 114,000
<br /> Nitzschia dissipata media
<br /> Nitzschia elegantula 1,300 28,300
<br /> Nitzschia fonticola 289 20,600 55 3,900
<br /> Nitzschia frustulum 145 19,400 841 113,000
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