| Report Year: 2009 |
| Lake Wapello, Davis County |
| Phytoplankton |
| | 6/17/2009 | 7/21/2009 | 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 | 3.046 | 2.712 | 2.879 | 0.186 | 0.294 | 2.181 | 0.067 | 0.612 | 0.048 | 55.252 | 37.435 |
| Chlorophyta | 0.000 | 0.138 | 0.069 | 0.237 | 0.063 | 0.561 | 0.175 | 0.007 | 0.037 | 0.006 | 0.073 |
| Chrysophyta | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.202 | 0.000 | 0.000 |
| Cryptophyta | 0.498 | 0.525 | 0.511 | 0.058 | 0.045 | 1.044 | 0.028 | 0.041 | 0.081 | 0.451 | 0.059 |
| Cyanobacteria | 21.840 | 90.782 | 56.311 | 56.738 | 52.481 | 1072.167 | 13.910 | 3.999 | 190.276 | 8.458 | 3.004 |
| Dinophyta | 0.000 | 0.000 | 0.000 | 0.689 | 0.101 | 0.536 | 0.069 | 0.114 | 0.148 | 0.708 | 0.239 |
| Euglenophyta | 0.025 | 0.343 | 0.184 | 0.148 | 0.000 | 0.009 | 0.019 | 0.055 | 0.024 | 0.000 | 0.005 |
| Total | 25.409 | 94.500 | 59.954 | 58.055 | 52.985 | 1076.499 | 14.268 | 4.829 | 190.816 | 64.875 | 40.815 |
| Taxonomic Richness | 10 | 24 | 17 | 8 | 9 | 11 | 9 | 11 | 8 | 8 | 9 |
| Cyanobacteria Cell Counts(k)/ml | 15.614 | 89.745 | 52.679 | 0.000 | 41.591 | 790.747 | 10.062 | 8.149 | 168.013 | 29.170 | 4.187 |
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