| Report Year: 2009 |
| Crawford Creek Impoundment, Ida 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 | 3.242 | 2.026 | 2.634 | 5.378 | 1.387 | 1.710 | 2.522 | 1.596 | 6.782 | 12.544 | 10.173 |
| Chlorophyta | 1.372 | 36.486 | 18.929 | 0.057 | 1.146 | 0.720 | 0.071 | 2.575 | 1.188 | 0.436 | 0.563 |
| Chrysophyta | 2.203 | 0.000 | 1.102 | 0.017 | 0.000 | 0.000 | 0.000 | 0.000 | 0.653 | 0.000 | 0.000 |
| Cryptophyta | 3.642 | 0.672 | 2.157 | 0.522 | 0.092 | 1.614 | 0.030 | 0.253 | 0.472 | 0.075 | 0.398 |
| Cyanobacteria | 87.702 | 221.597 | 154.649 | 179.730 | 131.187 | 13.797 | 8.703 | 18.609 | 36.796 | 1.265 | 319.800 |
| Dinophyta | 0.000 | 6.041 | 3.021 | 0.124 | 0.000 | 0.892 | 0.147 | 1.818 | 0.000 | 0.617 | 3.173 |
| Euglenophyta | 0.000 | 0.030 | 0.015 | 0.254 | 0.000 | 0.349 | 0.062 | 0.076 | 0.001 | 0.008 | 0.029 |
| Total | 98.161 | 266.853 | 182.507 | 186.081 | 133.812 | 19.082 | 11.536 | 24.926 | 45.891 | 14.945 | 334.136 |
| Taxonomic Richness | 22 | 50 | 36 | 9 | 15 | 12 | 7 | 11 | 10 | 9 | 7 |
| Cyanobacteria Cell Counts(k)/ml | 62.700 | 155.319 | 109.009 | 0.000 | 183.358 | 74.861 | 12.042 | 34.374 | 24.338 | 3.563 | 233.981 |
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