| Report Year: 2009 |
| Little Sioux Park Lake, Woodbury County |
| Phytoplankton |
| | 6/1/2009 | 7/6/2009 | 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 | 0.445 | 0.420 | 0.433 | 4.060 | 2.202 | 0.214 | 0.015 | 0.146 | 4.859 | 1.352 | 0.258 |
| Chlorophyta | 2.372 | 0.285 | 1.328 | 0.143 | 1.509 | 0.474 | 0.108 | 0.129 | 0.018 | 0.087 | 0.077 |
| Cryptophyta | 0.044 | 0.125 | 0.084 | 0.034 | 0.174 | 0.178 | 0.017 | 0.038 | 0.120 | 0.089 | 0.124 |
| Cyanobacteria | 34.823 | 5.146 | 19.985 | 17.659 | 42.662 | 2.244 | 2.207 | 1.617 | 8.618 | 0.965 | 6.527 |
| Dinophyta | 0.000 | 3.508 | 1.754 | 0.608 | 0.094 | 0.339 | 0.172 | 0.676 | 1.591 | 0.692 | 6.492 |
| Euglenophyta | 0.144 | 0.471 | 0.307 | 0.018 | 0.078 | 0.057 | 0.006 | 0.001 | 0.000 | 0.000 | 0.081 |
| Total | 37.827 | 9.954 | 23.891 | 22.522 | 46.719 | 3.506 | 2.525 | 2.606 | 15.206 | 3.185 | 13.561 |
| Taxonomic Richness | 36 | 30 | 33 | 7 | 18 | 14 | 14 | 10 | 5 | 9 | 12 |
| Cyanobacteria Cell Counts(k)/ml | 34.217 | 3.679 | 18.948 | 0.000 | 30.857 | 4.766 | 1.699 | 1.405 | 4.385 | 1.084 | 0.781 |
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