| Report Year: 2009 |
| Oldham Lake, Monona County |
| Zooplankton |
| | 6/11/2009 | 7/15/2009 | 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 | 0.407 | 2.761 | 7.511 | 5.584 | 0.705 | 1.075 | 2.516 | 2.236 |
| Ceriodaphnia | 13.106 | 9.724 | 11.415 | 7.726 | 0.000 | 5.133 | 0.000 | 11.867 | 0.000 | 1.404 | 81.671 |
| Daphnia | 96.810 | 3.583 | 50.197 | 15.859 | 37.911 | 27.293 | 84.726 | 65.555 | 74.652 | 48.010 | 6.642 |
| Copepoda |
| Calanoida | 0.000 | 0.000 | 0.000 | 0.734 | 11.841 | 15.614 | 12.172 | 27.213 | 78.855 | 2.409 | 0.000 |
| Cyclopoida | 3.231 | 0.000 | 1.616 | 13.207 | 13.154 | 14.918 | 4.339 | 0.503 | 1.557 | 2.293 | 24.936 |
| Nauplii | 2.870 | 3.550 | 3.210 | 5.842 | 7.593 | 14.187 | 20.749 | 13.299 | 11.155 | 9.807 | 2.945 |
| Nauplii |
| Nauplii | 2.870 | 3.550 | 3.210 | 5.842 | 7.593 | 14.187 | 20.749 | 13.299 | 11.155 | 9.807 | 2.945 |
| Rotifera |
| Ascomorpha | 0.000 | 0.000 | 0.000 | 0.000 | 0.011 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Asplanchna | 0.000 | 14.852 | 7.426 | 1.516 | 9.267 | 0.947 | 0.000 | 0.298 | 0.510 | 0.583 | 0.000 |
| Brachionus | 0.000 | 0.000 | 0.000 | 0.118 | 1.554 | 0.244 | 0.000 | 0.202 | 1.209 | 0.201 | 0.005 |
| Conochilus | 0.000 | 0.000 | 0.000 | 0.739 | 0.000 | 0.001 | 0.002 | 0.015 | 0.000 | 0.000 | 0.000 |
| Filinia | 0.000 | 0.000 | 0.000 | 0.000 | 0.020 | 0.264 | 0.071 | 0.000 | 0.151 | 0.616 | 0.000 |
| Kellicottia | 0.000 | 0.059 | 0.029 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella cochlearis | 3.087 | 1.343 | 2.215 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella | 0.000 | 0.000 | 0.000 | 0.873 | 2.941 | 1.384 | 1.759 | 2.161 | 1.353 | 2.347 | 0.011 |
| Lecane | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.182 | 0.000 |
| Polyarthra | 0.063 | 0.459 | 0.261 | 0.165 | 0.466 | 0.372 | 0.344 | 0.218 | 0.299 | 3.264 | 0.025 |
| Pompholx | 0.000 | 0.000 | 0.000 | 0.000 | 0.057 | 0.038 | 0.062 | 0.000 | 0.000 | 0.000 | 0.000 |
| Trichocerca | 0.000 | 0.000 | 0.000 | 0.611 | 0.605 | 0.213 | 1.537 | 0.027 | 0.633 | 0.151 | 0.000 |
| Total | 119.167 | 33.570 | 76.368 | 47.796 | 88.181 | 88.119 | 131.345 | 122.063 | 171.449 | 73.783 | 118.470 |
| Large Suspension Feeders (%) | 92 | 40 | 66 | 54 | 34 | 29 | 25 | 65 | 19 | 60 | 70 |
| Taxonomic Richness | 6 | 7 | 7 | 7 | 9 | 8 | 7 | 7 | 7 | 8 | 7 |
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