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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 /> II, micrometer; <, less than; Site abbreviations are used in this table. See table I for full site names]
<br /> Cameo Cameo GunnGJ GunnGJ State line State line
<br /> 8/96 8/97 8/96 8/97 8/96 8197
<br /> A B A B A B A B A B A B
<br /> DIVISION
<br /> Family
<br /> Genus species variety
<br /> Nitzschia frustulum perminuta 1,830 89,900 3,470 126,000 30,600 1,510,000 85,600 3,110,000 37,000 1,820,000 19,600 711,000
<br /> Nitzschia fruticosa
<br /> Nitzschia gracilis
<br /> Nitzschia hantzschiana
<br /> Nitzschia hungarica 817 654,000
<br /> Nitzschia legleri
<br /> Nitzschia linearis 817 1,410,000 260 449,000
<br /> Nitzschia palea
<br /> Nitzschia palea debilis 5,720 447,000 4,630 362,000
<br /> Nitzschia palea sumatrana
<br /> Nitzschia paleacea
<br /> Nitzschia paleaeformis
<br /> Nitzschia pusilla
<br /> Nitzschia supralitorea
<br /> Nitzschia tubicola 817 343,000
<br /> Nitzschia umbilicata 616 44,700
<br /> Nitzschia vermicularis
<br /> Simonsenia delognei 616 5,930 389 3,750
<br /> Surirellaceae
<br /> Cymatopleura solea 817 5,400,000
<br />~ Surirella angusta
<br />1..0
<br /> Surirella brebissonii
<br /> Surirella minuta 1,230 522,000
<br /> Thalassiosiraceae
<br /> Aulacosira distans
<br /> Aulacosira italica
<br /> Cyclostephanos invisitatus 130 71,800
<br /> Cyclotella meneghiniana 1,390 814,000
<br /> Cyclotella ocellata 408 26,500
<br /> Cyclotella pseudostelligera 182 914 19,900 99,700
<br /> Stephanodiscus hantzschii 463 135,000
<br /> Stephanodiscus medius
<br /> Stephanodiscus sp. (2 ANS WRC) 817 8,120 616 12,000 463 4,600
<br /> CRYPTOPHYTA (cryptomonads)
<br /> Cryptomonadaceae
<br /> Cryptomonas sp.
<br /> CYANOPHYTA (blue-green algae)
<br /> Chroococcaceae
<br /> Microcystis sp.
<br /> Nostocaceae
<br /> Amphithrix Janthina 6,960 285,000 534,000 21,800,000 34,200 1,400,000
<br /> Calothrix parientina
<br /> Calothrix sp.
<br /> Nostoc sp.
<br /> Oscillatoriaceae
<br />
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