| Report Year: 2009 |
| Hickory Grove Lake, Story County |
| Zooplankton |
| | 6/15/2009 | 7/20/2009 | 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 | 5.126 | 0.000 | 2.563 | 0.000 | 0.794 | 0.000 | 0.531 | 0.224 | 0.000 | 1.133 | 0.174 |
| Ceriodaphnia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.788 |
| Daphnia | 54.936 | 3.922 | 29.429 | 57.397 | 46.702 | 133.531 | 21.348 | 101.705 | 119.081 | 82.368 | 9.371 |
| Copepoda |
| Calanoida | 3.385 | 0.000 | 1.692 | 16.438 | 3.899 | 36.402 | 4.766 | 35.085 | 1.867 | 3.649 | 1.067 |
| Cyclopoida | 17.217 | 4.933 | 11.075 | 16.272 | 25.506 | 10.900 | 31.248 | 56.936 | 0.534 | 9.811 | 5.985 |
| Nauplii | 3.223 | 7.095 | 5.159 | 5.427 | 4.919 | 9.842 | 2.362 | 6.831 | 2.563 | 7.736 | 0.884 |
| Nauplii |
| Nauplii | 3.223 | 7.095 | 5.159 | 5.427 | 4.919 | 9.842 | 2.362 | 6.831 | 2.563 | 7.736 | 0.884 |
| Rotifera |
| Ascomorpha | 0.421 | 0.159 | 0.290 | 0.000 | 0.014 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Asplanchna | 4.604 | 0.000 | 2.302 | 0.000 | 2.084 | 0.028 | 0.005 | 9.599 | 1.942 | 0.000 | 0.000 |
| Brachionus | 0.000 | 0.000 | 0.000 | 0.074 | 0.009 | 0.000 | 0.000 | 0.046 | 0.019 | 0.224 | 0.000 |
| Filinia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.011 | 0.185 | 0.003 |
| Kellicottia | 0.000 | 0.000 | 0.000 | 0.063 | 0.000 | 0.000 | 0.009 | 0.285 | 0.000 | 0.000 | 0.004 |
| Keratella cochlearis | 0.614 | 1.038 | 0.826 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella | 0.000 | 0.000 | 0.000 | 0.295 | 0.602 | 0.758 | 1.172 | 3.454 | 1.946 | 0.118 | 0.052 |
| Lecane | 0.000 | 0.000 | 0.000 | 0.000 | 0.009 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Polyarthra | 0.218 | 0.000 | 0.109 | 0.233 | 0.430 | 1.749 | 0.217 | 0.115 | 0.383 | 0.482 | 0.149 |
| Pompholx | 0.000 | 0.000 | 0.000 | 0.000 | 0.096 | 0.000 | 0.030 | 0.000 | 0.000 | 0.000 | 0.000 |
| Trichocerca | 0.000 | 0.000 | 0.000 | 0.026 | 0.000 | 0.092 | 0.000 | 0.000 | 0.213 | 0.000 | 0.000 |
| Total | 89.744 | 17.147 | 53.446 | 96.225 | 85.062 | 193.301 | 61.688 | 214.281 | 128.559 | 105.707 | 18.477 |
| Large Suspension Feeders (%) | 61 | 23 | 42 | 21 | 36 | 47 | 26 | 52 | 56 | 77 | 47 |
| Taxonomic Richness | 9 | 5 | 7 | 6 | 8 | 6 | 5 | 6 | 6 | 6 | 7 |
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