<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
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