| Report Year: 2009 |
| Center Lake, Dickinson County |
| Phytoplankton |
| | 6/2/2009 | 7/7/2009 | 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 | 0.053 | 30.955 | 15.504 | 0.158 | 0.000 | 0.026 | 0.026 | 0.006 | 0.981 | 0.063 | 0.116 |
| Chlorophyta | 6.007 | 0.011 | 3.009 | 0.836 | 0.000 | 0.626 | 0.653 | 0.006 | 0.484 | 0.001 | 0.119 |
| Chrysophyta | 0.192 | 0.000 | 0.096 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.586 | 0.000 | 0.000 |
| Cryptophyta | 0.336 | 0.291 | 0.313 | 0.015 | 0.000 | 0.405 | 0.019 | 0.075 | 0.200 | 0.218 | 0.033 |
| Cyanobacteria | 53.106 | 164.240 | 108.673 | 89.943 | 39.252 | 23.460 | 12.000 | 22.475 | 231.353 | 9.582 | 24.652 |
| Euglenophyta | 0.000 | 0.080 | 0.040 | 0.022 | 0.000 | 0.070 | 0.000 | 0.002 | 0.000 | 0.000 | 0.077 |
| Total | 59.694 | 195.578 | 127.636 | 90.974 | 39.252 | 24.588 | 12.698 | 22.563 | 233.603 | 9.864 | 24.996 |
| Taxonomic Richness | 20 | 20 | 20 | 5 | 2 | 10 | 5 | 6 | 7 | 3 | 5 |
| Cyanobacteria Cell Counts(k)/ml | 39.284 | 47.934 | 43.609 | 0.000 | 158.247 | 80.185 | 53.949 | 103.085 | 196.320 | 79.615 | 97.296 |
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