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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 /> J.l, micrometer; <, less than; Site abbreviations are used in this table. See table 1 for full site names] <br /> Gunn32 Gunn32 GunnTunn GunnTunn Dotsero Dotsero <br /> 8/96 8/97 8/96 8/97 8/96 8/97 <br /> A B A B A B A B A B A B <br /> DIVISION <br /> Family <br /> Genus species variety <br /> Anomoeoneis vitrea <br /> Caloneis bacillum <br /> Caloneis hyalina 208 95,400 406 186,000 729 334,000 2,420 1,110,000 <br /> Caloneis ventricosa alpina 579 334,000 <br /> Cymbella affinis 135,000 39,300,000 1,250 785,000 406 118,000 16,800 4,880.000 38,100 23,900,000 <br /> Cymbella amphicephala <br /> Cymbella brehmii 3,470 95,800 8,140 224,000 <br /> Cymbella cesatii <br /> Cymbella gaeunumnii <br /> Cymbella microcephala <br /> Cymbella microcephala robusta <br /> Cymbella minuta 14,500 1,870,000 1,880 373,000 1,290 166,000 628 125,000 2,790 361,000 9,670 1,920,000 <br /> Cymbella minuta latens <br /> Cymbella minuta silesiaca 579 413,000 2,500 1,020,000 1,570 638,000 152,000 61,900,000 <br /> Cymbella sp. (2 ANS WRC) <br /> Cymbella sp. (3 ANS WRC) <br /> Diploneis elliptica <br /> Diploneis pseudovalis <br /> Gomphonema acuminatum laticeps 1,040 364,000 <br /> Gomphonema angustatum 579 165,000 208 59,300 <br />tv Gomphonema gracile <br />VI <br /> Gomphonema olivaceoides 579 106,000 <br /> Gomphonema olivaceum 1,360 298,000 745 164,000 157 34,500 729 160,000 44,100 9,710,000 <br /> Gomphonema olivaceum minutissimum <br /> Gomphonema parvulum 1,160 249,000 243 52,200 <br /> Gomphonema pumilum <br /> Gomphonema subclavatum <br /> Gomphonema tenellum 4,050 640,000 1,250 198,000 339 53,500 157 24,800 729 115,000 <br /> Gomphonema truncatum 1,210 864,000 <br /> Gomphonema ventricosum 579 678,000 <br /> Mastogloia smithii <br /> Navicula acceptata <br /> Navicula accomoda <br /> Navicula agrestis <br /> Navicula arvensis <br /> Navicula atomus 208 7,260 235 8,190 <br /> Navicula cincta rostrata <br /> Navicula cocconeiformis <br /> Navicula cryptocephala 2,170 249,000 <br /> Navicula cryptocephala exi/is 243 12,100 <br /> Navicula cryptocephala veneta 1,560 292,000 5,340 997,000 1,340 133,000 29,600 5,530,000 <br /> Navicula cryptotenella 16,800 4,610,000 2,190 601,000 5,490 1,510,000 1,180 323,000 6,560 1,800,000 16,300 4,480,000 <br /> Navicula decussis 135 28,300 <br /> Navicula detenta 1,210 246,000 <br /> Navicula elginensis <br />