| Report Year: 2009 |
| Prairie Rose Lake, Shelby County |
| Phytoplankton |
| | 6/10/2009 | 7/14/2009 | 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 | 24.938 | 11.900 | 18.419 | 0.813 | 0.507 | 2.212 | 10.222 | 1.234 | 4.605 | 2.086 | 7.993 |
| Chlorophyta | 3.083 | 0.702 | 1.892 | 0.155 | 0.065 | 0.566 | 0.312 | 0.580 | 0.306 | 0.901 | 0.080 |
| Chrysophyta | 0.098 | 0.000 | 0.049 | 0.000 | 0.000 | 0.000 | 0.156 | 0.000 | 0.188 | 0.000 | 0.000 |
| Cryptophyta | 0.261 | 2.785 | 1.523 | 0.032 | 0.099 | 0.400 | 0.092 | 0.043 | 0.002 | 0.000 | 0.041 |
| Cyanobacteria | 66.093 | 128.289 | 97.191 | 168.716 | 29.782 | 28.969 | 86.234 | 28.288 | 41.495 | 3.810 | 21.803 |
| Dinophyta | 33.984 | 12.144 | 23.064 | 1.048 | 0.000 | 0.000 | 0.615 | 0.408 | 8.023 | 0.349 | 0.000 |
| Euglenophyta | 0.000 | 5.929 | 2.965 | 0.000 | 0.000 | 0.109 | 0.455 | 0.019 | 0.000 | 0.000 | 0.000 |
| Total | 128.457 | 161.750 | 145.103 | 170.764 | 30.452 | 32.255 | 98.087 | 30.573 | 54.619 | 7.146 | 29.916 |
| Taxonomic Richness | 28 | 38 | 33 | 5 | 8 | 13 | 10 | 11 | 7 | 6 | 5 |
| Cyanobacteria Cell Counts(k)/ml | 233.359 | 114.119 | 173.739 | 0.000 | 31.775 | 85.493 | 72.961 | 33.508 | 139.703 | 21.299 | 56.940 |
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