| Report Year: 2009 |
| Easter Lake, Polk 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 | 39.355 | 294.102 | 166.729 | 0.000 | 0.000 | 1.450 | 19.980 | 4.283 | 3.533 | 1.612 | 0.000 |
| Ceriodaphnia | 0.000 | 20.990 | 10.495 | 0.000 | 0.000 | 0.000 | 4.692 | 0.000 | 0.000 | 0.810 | 0.000 |
| Daphnia | 6.848 | 41.483 | 24.165 | 32.380 | 3.445 | 26.965 | 238.144 | 100.301 | 55.544 | 22.267 | 5.751 |
| Copepoda |
| Calanoida | 0.000 | 2.612 | 1.306 | 16.090 | 1.554 | 25.222 | 31.936 | 243.109 | 84.594 | 63.932 | 30.525 |
| Cyclopoida | 19.767 | 38.873 | 29.320 | 10.135 | 2.634 | 14.124 | 70.539 | 6.454 | 56.523 | 9.631 | 7.260 |
| Nauplii | 5.673 | 18.132 | 11.903 | 5.714 | 2.158 | 7.140 | 17.983 | 17.695 | 17.817 | 15.269 | 3.684 |
| Nauplii |
| Nauplii | 5.673 | 18.132 | 11.903 | 5.714 | 2.158 | 7.140 | 17.983 | 17.695 | 17.817 | 15.269 | 3.684 |
| Rotifera |
| Asplanchna | 6.189 | 10.131 | 8.160 | 0.198 | 0.000 | 1.644 | 8.133 | 15.559 | 0.000 | 5.934 | 0.000 |
| Brachionus | 0.000 | 0.349 | 0.175 | 1.116 | 0.070 | 2.062 | 0.051 | 0.257 | 0.188 | 0.692 | 0.235 |
| Conochilus | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.006 | 0.000 | 0.000 | 0.000 | 0.000 |
| Filinia | 0.000 | 0.000 | 0.000 | 0.000 | 0.139 | 0.000 | 0.000 | 0.036 | 0.000 | 0.066 | 0.071 |
| Kellicottia | 0.024 | 0.000 | 0.012 | 0.000 | 0.000 | 0.001 | 0.021 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella cochlearis | 0.108 | 0.268 | 0.188 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella | 0.000 | 0.000 | 0.000 | 0.042 | 0.085 | 0.344 | 0.587 | 0.696 | 0.044 | 0.245 | 0.002 |
| Lecane | 0.000 | 0.000 | 0.000 | 0.000 | 0.010 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Macrochaetus | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.096 |
| Polyarthra | 0.661 | 1.230 | 0.946 | 0.666 | 0.117 | 0.194 | 0.631 | 0.160 | 0.000 | 1.204 | 0.012 |
| Pompholx | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.279 | 0.746 | 0.028 | 0.000 | 0.000 | 0.000 |
| Trichocerca | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.335 | 0.000 | 0.076 | 0.000 | 0.000 |
| Total | 78.626 | 428.170 | 253.398 | 66.341 | 10.213 | 80.425 | 393.784 | 388.578 | 218.319 | 121.662 | 47.637 |
| Large Suspension Feeders (%) | 9 | 15 | 12 | 21 | 13 | 31 | 50 | 25 | 23 | 21 | 19 |
| Taxonomic Richness | 8 | 10 | 9 | 7 | 5 | 9 | 10 | 7 | 6 | 7 | 7 |
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