PERMFILE130584

• Permit No: C1981016
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Aquatic Resources
• Section_Exhibit Name: APPENDIX D CONTINUED
• Media Type: D
• Archive: No

•
Table 4.0-4. Relative abundance and replicate den• ies (no./cm2) of periphyton genera collected
at station E in the North Fork Gunnison River, November 11 and 12, 1980.
Letter Prefixes Before Each Taxon Indicate Algal Division:
A = Chrysophyta (Diatoms, etc.)
A
rn
C = Ch]orophyta (greens)
D = Euglenophyt a (Euglenoids)
E = Cyanophyta (blue-greens)
G = Pyrrophyta (golden-browns)
South R iddle North Mean Values
Taxa Name % Abundance % b~nce % bun ante un ante Mean Rank
E Calothrix 26.2 1.5 1.0 9.8 5
A Amphipleura 1.9 1.0 2,0 1,6 10
A Navicula 3.3 9.0 1,0 4,6 7
A Diztoma 1,4 6.0 7.9 5.1 6
A P'elosira 3.8 0.0 0.0 1.3 3
A Gomphonema 1.9 2.5 3.5 2,6 9
A Achnanthes 6.7 12.5 17.0 11.9 3
E Schizothrix 44.7 20.5 26.8 30.8 1
A Cymbella 3.3 18.0 12.4 11.3 4
A Nitzschia 2.9 18.5 17.4 12.8 2
A Fragilaria 1.0 4.0 3.0 2.6 9
A Cocconeis 1,0 2.5 7.0 3.4 8
E Unidentified Cyanophyta 1.9 0.0 0.0 0,5 11
A Epithemia 0.0 3.0 0.5 1,1 12
A Synedra 0.0 0.5 0.0 0,2 13
A Stephanodiscus 0.0 0.5 0.0 0.2 13
A Cyclotella 0.0 0.0 0.5 0.2 13
Total Densities (no./cm2) 1,232,230 2,738,290 812,060 1,594,193
Total Units Counted 210 200 201
Total Taxa Counted 14 14 13