| Report Year: 2009 |
| Lake Hendricks, Howard 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 | 0.944 | 4.234 | 2.589 | 0.000 | 0.000 | 0.620 | 1.130 | 0.006 | 0.733 | 0.244 | 0.071 |
| Chlorophyta | 1.945 | 171.595 | 86.770 | 0.000 | 0.000 | 0.230 | 0.202 | 0.547 | 0.131 | 1.989 | 0.000 |
| Chrysophyta | 0.000 | 41.293 | 20.646 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Cryptophyta | 20.732 | 27.396 | 24.064 | 0.000 | 0.000 | 7.125 | 1.344 | 0.817 | 1.345 | 0.873 | 4.768 |
| Cyanobacteria | 16.233 | 106.821 | 61.527 | 0.000 | 0.000 | 593.151 | 289.371 | 129.385 | 98.391 | 335.554 | 31.827 |
| Dinophyta | 0.000 | 0.940 | 0.470 | 0.000 | 0.000 | 0.595 | 0.400 | 0.000 | 0.000 | 0.000 | 1.385 |
| Euglenophyta | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.116 | 0.040 | 0.364 | 0.000 | 0.000 | 0.127 |
| Total | 39.854 | 352.279 | 196.066 | 0.000 | 0.000 | 601.838 | 292.486 | 131.120 | 100.599 | 338.660 | 38.177 |
| Taxonomic Richness | 30 | 26 | 28 | 0 | 0 | 10 | 11 | 7 | 4 | 5 | 6 |
| Cyanobacteria Cell Counts(k)/ml | 26.100 | 119.718 | 72.909 | 0.000 | 0.000 | 526.638 | 223.179 | 184.268 | 59.695 | 258.749 | 39.985 |
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