| Report Year: 2009 |
| Nelson Park Lake, Crawford County |
| Phytoplankton |
| | 6/10/2009 | 7/15/2009 | 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 | 4.512 | 0.581 | 2.546 | 1.321 | 0.159 | 5.863 | 0.037 | 2.675 | 3.887 | 6.488 | 9.584 |
| Chlorophyta | 0.853 | 0.037 | 0.445 | 4.128 | 0.164 | 0.250 | 0.216 | 6.137 | 0.074 | 0.083 | 0.000 |
| Chrysophyta | 0.050 | 0.000 | 0.025 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.014 | 0.000 | 0.000 |
| Cryptophyta | 0.890 | 1.957 | 1.423 | 0.327 | 0.160 | 1.132 | 0.444 | 0.388 | 0.375 | 1.103 | 0.761 |
| Cyanobacteria | 8.549 | 10.493 | 9.521 | 14.945 | 6.844 | 1.417 | 12.984 | 145.040 | 9.832 | 0.517 | 13.196 |
| Dinophyta | 0.000 | 11.822 | 5.911 | 0.000 | 0.284 | 0.000 | 0.000 | 0.829 | 0.293 | 0.523 | 0.000 |
| Euglenophyta | 0.000 | 0.485 | 0.243 | 0.021 | 0.011 | 0.086 | 0.000 | 0.000 | 0.000 | 0.000 | 0.494 |
| Total | 14.854 | 25.375 | 20.115 | 20.742 | 7.622 | 8.748 | 13.680 | 155.068 | 14.474 | 8.714 | 24.035 |
| Taxonomic Richness | 24 | 20 | 22 | 7 | 10 | 14 | 11 | 9 | 9 | 6 | 5 |
| Cyanobacteria Cell Counts(k)/ml | 6.112 | 7.502 | 6.807 | 0.000 | 17.148 | 4.152 | 8.576 | 105.510 | 58.206 | 5.520 | 62.021 |
|