| Report Year: 2009 |
| Lake Manawa, Pottawattamie County |
| Zooplankton |
| | 6/9/2009 | 7/14/2009 | 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 | 0.000 | 1.883 | 4.364 | 1.262 | 53.157 | 29.577 | 36.807 | 4.267 |
| Ceriodaphnia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.307 | 22.834 | 16.499 |
| Daphnia | 39.311 | 0.000 | 19.655 | 0.491 | 17.727 | 20.876 | 28.220 | 34.589 | 18.232 | 105.880 | 0.000 |
| Copepoda |
| Calanoida | 0.000 | 0.000 | 0.000 | 1.566 | 52.060 | 30.313 | 22.520 | 7.298 | 31.847 | 185.545 | 46.292 |
| Cyclopoida | 3.124 | 22.658 | 12.891 | 2.023 | 23.379 | 33.001 | 13.915 | 43.144 | 30.807 | 8.538 | 9.159 |
| Nauplii | 5.517 | 19.358 | 12.438 | 2.225 | 4.450 | 14.301 | 9.213 | 27.585 | 16.090 | 23.554 | 4.964 |
| Nauplii |
| Nauplii | 5.517 | 19.358 | 12.438 | 2.225 | 4.450 | 14.301 | 9.213 | 27.585 | 16.090 | 23.554 | 4.964 |
| Rotifera |
| Asplanchna | 0.000 | 0.000 | 0.000 | 1.295 | 0.000 | 3.559 | 1.594 | 6.889 | 3.421 | 18.440 | 0.000 |
| Brachionus | 0.000 | 6.855 | 3.427 | 1.015 | 1.377 | 2.937 | 4.811 | 6.731 | 3.520 | 21.093 | 0.042 |
| Conochilus | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.012 | 0.000 | 0.000 | 0.000 |
| Euchlanis | 0.375 | 0.000 | 0.188 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Filinia | 0.000 | 0.056 | 0.028 | 0.003 | 0.000 | 0.000 | 0.000 | 0.000 | 0.320 | 0.133 | 0.022 |
| Keratella cochlearis | 0.310 | 0.079 | 0.194 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella | 0.000 | 0.000 | 0.000 | 0.112 | 0.009 | 0.319 | 0.019 | 0.093 | 0.106 | 0.528 | 0.052 |
| Lecane | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.127 | 0.000 |
| Polyarthra | 0.097 | 2.722 | 1.410 | 0.005 | 0.033 | 1.826 | 0.280 | 1.931 | 0.523 | 0.410 | 0.000 |
| Pompholx | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.154 | 0.000 | 0.026 | 0.000 | 0.000 | 0.000 |
| Total | 48.734 | 51.728 | 50.231 | 8.734 | 100.918 | 111.650 | 81.833 | 181.454 | 135.752 | 423.889 | 81.298 |
| Large Suspension Feeders (%) | 81 | 0 | 40 | 13 | 16 | 15 | 17 | 18 | 14 | 32 | 22 |
| Taxonomic Richness | 6 | 6 | 6 | 5 | 5 | 8 | 7 | 8 | 9 | 9 | 7 |
|