| Report Year: 2009 |
| Center Lake, Dickinson County |
| Zooplankton |
| | 6/2/2009 | 7/7/2009 | 2009 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Suborder/Genus | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) | Dry Mass (μg/L) |
| Cladocera |
| Bosmina | 0.000 | 0.000 | 0.000 | 5.212 | 1.015 | 1.286 | 0.769 | 0.517 | 0.000 | 0.000 | 0.155 |
| Ceriodaphnia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 3.305 | 0.000 | 0.000 | 0.000 | 0.000 |
| Daphnia | 48.749 | 32.073 | 40.411 | 101.129 | 78.975 | 58.666 | 418.774 | 128.367 | 214.423 | 108.256 | 26.534 |
| Copepoda |
| Calanoida | 50.874 | 89.648 | 70.261 | 65.392 | 50.361 | 57.305 | 85.801 | 101.772 | 94.739 | 123.500 | 17.024 |
| Cyclopoida | 2.490 | 10.727 | 6.609 | 8.162 | 6.292 | 4.440 | 5.879 | 3.799 | 62.910 | 29.799 | 5.781 |
| Nauplii | 6.711 | 12.232 | 9.472 | 4.787 | 3.226 | 10.318 | 8.906 | 5.087 | 16.216 | 12.769 | 1.034 |
| Nauplii |
| Nauplii | 6.711 | 12.232 | 9.472 | 4.787 | 3.226 | 10.318 | 8.906 | 5.087 | 16.216 | 12.769 | 1.034 |
| Rotifera |
| Asplanchna | 0.000 | 0.000 | 0.000 | 0.000 | 0.009 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Brachionus | 0.000 | 0.000 | 0.000 | 0.239 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.469 | 0.000 |
| Conochilus | 0.000 | 0.000 | 0.000 | 0.015 | 0.011 | 0.001 | 0.004 | 0.000 | 0.006 | 0.000 | 0.000 |
| Kellicottia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.005 | 0.000 | 0.005 | 0.000 | 0.000 | 0.000 |
| Keratella cochlearis | 0.030 | 0.000 | 0.015 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella | 0.000 | 0.000 | 0.000 | 0.137 | 0.010 | 0.043 | 0.144 | 0.029 | 0.115 | 0.047 | 0.000 |
| Lecane | 0.000 | 0.000 | 0.000 | 0.000 | 1.226 | 0.025 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Polyarthra | 0.000 | 0.000 | 0.000 | 0.039 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Pompholx | 0.000 | 0.000 | 0.000 | 0.000 | 0.002 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Total | 108.855 | 144.680 | 126.768 | 185.113 | 141.127 | 132.088 | 523.581 | 239.576 | 388.409 | 275.839 | 50.528 |
| Large Suspension Feeders (%) | 45 | 22 | 33 | 50 | 55 | 43 | 69 | 52 | 61 | 56 | 52 |
| Taxonomic Richness | 5 | 4 | 5 | 7 | 7 | 6 | 5 | 5 | 5 | 5 | 5 |
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