| Report Year: 2009 |
| Carter Lake, Pottawattamie County |
| Phytoplankton |
| | 6/9/2009 | 7/14/2009 | 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 | 0.807 | 3.344 | 2.076 | 0.097 | 0.346 | 0.026 | 0.179 | 0.207 | 0.723 | 0.001 | 0.000 |
| Chlorophyta | 0.060 | 0.437 | 0.249 | 2.464 | 0.172 | 0.401 | 0.522 | 0.015 | 0.058 | 2.626 | 0.000 |
| Cryptophyta | 0.149 | 0.782 | 0.466 | 0.020 | 0.165 | 0.266 | 0.042 | 0.262 | 0.124 | 0.070 | 0.191 |
| Cyanobacteria | 304.887 | 660.041 | 482.464 | 371.595 | 126.388 | 102.407 | 69.764 | 68.593 | 857.687 | 52.763 | 39.937 |
| Dinophyta | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.285 | 0.000 | 0.000 | 0.000 | 0.000 |
| Euglenophyta | 0.000 | 0.063 | 0.031 | 6.349 | 0.000 | 0.582 | 0.400 | 0.196 | 0.000 | 0.000 | 0.000 |
| Total | 305.904 | 664.667 | 485.285 | 380.525 | 127.071 | 103.681 | 71.192 | 69.274 | 858.593 | 55.460 | 40.129 |
| Taxonomic Richness | 14 | 24 | 19 | 7 | 5 | 8 | 8 | 5 | 5 | 3 | 2 |
| Cyanobacteria Cell Counts(k)/ml | 1446.118 | 2412.956 | 1929.537 | 0.000 | 622.889 | 513.459 | 183.741 | 314.665 | 666.181 | 294.281 | 222.749 |
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