| Report Year: 2009 |
| Dog Creek Lake, O'Brien County |
| Zooplankton |
| | 6/2/2009 | 7/7/2009 | 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 | 259.643 | 144.038 | 201.841 | 0.000 | 11.481 | 42.381 | 374.136 | 380.081 | 32.347 | 0.825 | 2.935 |
| Ceriodaphnia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 102.802 | 69.399 | 120.946 | 22.910 | 0.000 | 9.875 |
| Daphnia | 1.351 | 2.982 | 2.167 | 0.000 | 53.593 | 10.072 | 232.538 | 60.434 | 5.483 | 86.429 | 4.059 |
| Copepoda |
| Calanoida | 0.000 | 0.000 | 0.000 | 0.000 | 53.008 | 45.367 | 28.916 | 129.378 | 1.768 | 13.605 | 7.864 |
| Cyclopoida | 39.596 | 10.509 | 25.052 | 0.000 | 3.563 | 2.597 | 108.298 | 38.009 | 37.924 | 33.380 | 6.025 |
| Nauplii | 20.824 | 18.802 | 19.813 | 0.000 | 5.308 | 14.528 | 67.679 | 41.593 | 12.138 | 4.107 | 1.898 |
| Nauplii |
| Nauplii | 20.824 | 18.802 | 19.813 | 0.000 | 5.308 | 14.528 | 67.679 | 41.593 | 12.138 | 4.107 | 1.898 |
| Rotifera |
| Asplanchna | 2.381 | 0.000 | 1.190 | 0.000 | 13.180 | 3.416 | 85.412 | 16.660 | 0.380 | 0.853 | 0.000 |
| Brachionus | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.952 | 3.790 | 1.115 | 0.671 | 0.734 | 0.034 |
| Conochilus | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.001 | 0.004 | 0.055 | 0.014 | 0.000 | 0.000 |
| Filinia | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.105 | 0.000 | 0.000 | 0.034 | 0.000 | 0.045 |
| Hexarthra | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.031 | 0.000 | 0.000 | 0.000 |
| Keratella cochlearis | 0.012 | 1.748 | 0.880 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella quadrata | 2.664 | 0.000 | 1.332 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Keratella | 0.000 | 0.000 | 0.000 | 0.000 | 0.228 | 1.185 | 4.771 | 21.636 | 4.409 | 0.141 | 0.101 |
| Polyarthra | 0.000 | 3.418 | 1.709 | 0.000 | 0.000 | 0.457 | 14.261 | 2.393 | 0.267 | 0.016 | 0.131 |
| Pompholx | 0.000 | 0.000 | 0.000 | 0.000 | 0.029 | 0.000 | 0.172 | 0.000 | 0.000 | 0.000 | 0.000 |
| Trichocerca | 0.000 | 0.000 | 0.000 | 0.000 | 0.049 | 0.000 | 0.000 | 0.051 | 0.158 | 0.028 | 0.000 |
| Total | 326.471 | 181.497 | 253.984 | 0.000 | 140.438 | 224.862 | 989.376 | 812.382 | 118.503 | 140.119 | 32.966 |
| Large Suspension Feeders (%) | 0 | 2 | 1 | - | 38 | 53 | 36 | 18 | 21 | 47 | 35 |
| Taxonomic Richness | 7 | 6 | 7 | - | 10 | 10 | 10 | 11 | 9 | 8 | 8 |
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