| Report Year: 2009 |
| Lake Ahquabi, Warren County |
| Phytoplankton |
| | 6/18/2009 | 7/20/2009 | 2009 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Division | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) |
| Bacillariophyta | 0.193 | 31.862 | 16.028 | 0.169 | 0.665 | 0.775 | 0.770 | 0.154 | 0.855 | 1.104 | 4.713 |
| Chlorophyta | 0.000 | 7.598 | 3.799 | 0.089 | 0.015 | 0.049 | 0.037 | 0.066 | 0.026 | 0.073 | 0.108 |
| Chrysophyta | 0.000 | 2.504 | 1.252 | 0.000 | 0.000 | 0.000 | 0.695 | 0.000 | 0.000 | 0.000 | 0.000 |
| Cryptophyta | 0.226 | 1.536 | 0.881 | 0.367 | 0.152 | 0.584 | 0.079 | 0.686 | 0.053 | 0.383 | 0.458 |
| Cyanobacteria | 53.037 | 109.113 | 81.075 | 48.529 | 15.907 | 28.092 | 33.888 | 28.013 | 49.309 | 15.847 | 6.613 |
| Dinophyta | 0.000 | 0.000 | 0.000 | 0.000 | 0.675 | 0.104 | 0.298 | 0.241 | 1.577 | 0.867 | 2.427 |
| Euglenophyta | 0.013 | 0.299 | 0.156 | 0.099 | 0.093 | 0.097 | 0.142 | 0.135 | 0.012 | 0.000 | 0.013 |
| Total | 53.469 | 152.911 | 103.190 | 49.253 | 17.507 | 29.701 | 35.909 | 29.295 | 51.833 | 18.274 | 14.331 |
| Taxonomic Richness | 16 | 28 | 22 | 6 | 9 | 10 | 8 | 11 | 9 | 7 | 8 |
| Cyanobacteria Cell Counts(k)/ml | 226.619 | 253.653 | 240.136 | 0.000 | 55.438 | 83.547 | 114.758 | 46.103 | 43.550 | 36.049 | 31.490 |
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