| Report Year: 2009 |
| Green Belt Lake, Black Hawk County |
| Zooplankton |
| | 6/24/2009 | 7/29/2009 | 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 | 23.510 | 59.555 | 41.532 | 6.747 | 2.931 | 0.000 | 0.880 | 1.916 | 0.000 | 0.581 | 0.093 |
| Ceriodaphnia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.334 | 0.000 | 0.000 | 0.000 |
| Daphnia | 0.000 | 36.251 | 18.126 | 2.860 | 20.424 | 1.173 | 1.038 | 4.113 | 0.317 | 0.000 | 0.140 |
| Copepoda |
| Calanoida | 0.000 | 8.346 | 4.173 | 0.947 | 3.497 | 4.531 | 7.860 | 4.444 | 4.243 | 0.000 | 1.380 |
| Cyclopoida | 0.000 | 15.090 | 7.545 | 0.381 | 17.805 | 4.889 | 2.106 | 0.282 | 2.136 | 0.143 | 1.501 |
| Nauplii | 9.754 | 8.498 | 9.126 | 2.139 | 4.849 | 1.147 | 0.882 | 2.775 | 3.650 | 1.268 | 0.870 |
| Nauplii |
| Nauplii | 9.754 | 8.498 | 9.126 | 2.139 | 4.849 | 1.147 | 0.882 | 2.775 | 3.650 | 1.268 | 0.870 |
| Rotifera |
| Asplanchna | 1.695 | 2.522 | 2.109 | 0.475 | 0.000 | 0.000 | 0.000 | 0.067 | 0.016 | 0.000 | 0.000 |
| Brachionus | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.005 | 0.043 | 0.017 | 0.000 | 0.000 |
| Conochilus | 0.000 | 0.000 | 0.000 | 0.004 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Kellicottia | 0.000 | 0.027 | 0.013 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella cochlearis | 0.473 | 0.541 | 0.507 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella | 0.000 | 0.000 | 0.000 | 0.016 | 0.007 | 0.026 | 0.036 | 0.040 | 0.016 | 0.018 | 0.001 |
| Lecane | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.023 | 0.001 | 0.000 | 0.035 | 0.000 |
| Macrochaetus | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.173 |
| Monostyla | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.012 | 0.000 | 0.000 | 0.000 | 0.000 |
| Polyarthra | 0.000 | 0.347 | 0.173 | 0.117 | 2.418 | 0.197 | 0.223 | 0.084 | 0.546 | 0.660 | 0.014 |
| Trichocerca | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.021 | 0.000 | 0.004 | 0.076 | 0.107 | 0.000 |
| Total | 35.433 | 131.177 | 83.305 | 13.686 | 51.930 | 11.984 | 13.064 | 14.103 | 11.017 | 2.813 | 4.171 |
| Large Suspension Feeders (%) | 0 | 28 | 14 | 9 | 24 | 4 | 5 | 32 | 1 | 0 | 2 |
| Taxonomic Richness | 4 | 9 | 7 | 5 | 5 | 4 | 6 | 7 | 4 | 5 | 6 |
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