| Report Year: 2009 |
| Crystal Lake, Hancock County |
| Phytoplankton |
| | 6/24/2009 | 7/29/2009 | 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 | 54.102 | 0.000 | 27.051 | 2.726 | 7.199 | 0.141 | 0.238 | 0.465 | 1.925 | 5.599 | 7.723 |
| Chlorophyta | 0.023 | 0.000 | 0.012 | 0.673 | 0.326 | 0.003 | 0.023 | 0.007 | 0.182 | 0.928 | 0.719 |
| Chrysophyta | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.032 | 0.000 | 0.000 |
| Cryptophyta | 0.078 | 0.000 | 0.039 | 0.050 | 0.035 | 1.693 | 0.014 | 0.052 | 0.000 | 0.137 | 0.067 |
| Cyanobacteria | 7.202 | 100.180 | 53.691 | 22.335 | 174.699 | 1572.385 | 376.358 | 911.586 | 3364.906 | 119.653 | 155.843 |
| Dinophyta | 0.000 | 0.000 | 0.000 | 0.000 | 0.247 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.261 |
| Euglenophyta | 0.000 | 0.000 | 0.000 | 0.212 | 0.000 | 0.071 | 0.043 | 0.055 | 0.001 | 0.000 | 0.000 |
| Total | 61.406 | 100.180 | 80.793 | 25.995 | 182.505 | 1574.294 | 376.676 | 912.165 | 3367.046 | 126.316 | 164.613 |
| Taxonomic Richness | 10 | 4 | 7 | 8 | 9 | 6 | 5 | 7 | 7 | 6 | 7 |
| Cyanobacteria Cell Counts(k)/ml | 8.491 | 434.458 | 221.474 | 0.000 | 141.151 | 1194.058 | 317.523 | 683.436 | 2429.853 | 289.280 | 65.679 |
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