| Report Year: 2009 |
| Ingham Lake, Emmet County |
| Phytoplankton |
| | 6/3/2009 | 7/7/2009 | 2009 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Division | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) | Wet Mass (mg/L) |
| Bacillariophyta | 15.508 | 1.125 | 8.317 | 3.558 | 4.481 | 3.249 | 8.889 | 1.425 | 5.600 | 0.090 | 2.996 |
| Chlorophyta | 2.401 | 5.278 | 3.839 | 0.246 | 0.744 | 0.441 | 0.278 | 0.409 | 2.008 | 0.028 | 4.319 |
| Chrysophyta | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 1.166 | 0.000 | 0.000 |
| Cryptophyta | 0.483 | 0.496 | 0.490 | 0.058 | 0.369 | 0.279 | 0.087 | 0.397 | 0.000 | 0.156 | 0.000 |
| Cyanobacteria | 260.637 | 201.388 | 231.013 | 1525.185 | 52.284 | 106.870 | 280.751 | 113.566 | 106.357 | 29.208 | 79.434 |
| Dinophyta | 0.000 | 0.000 | 0.000 | 0.190 | 0.304 | 0.206 | 0.000 | 0.000 | 1.433 | 0.000 | 0.000 |
| Euglenophyta | 1.503 | 0.012 | 0.758 | 0.000 | 0.000 | 0.091 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Total | 280.533 | 208.299 | 244.416 | 1529.237 | 58.181 | 111.136 | 290.004 | 115.797 | 116.563 | 29.482 | 86.750 |
| Taxonomic Richness | 32 | 38 | 35 | 7 | 11 | 14 | 7 | 6 | 10 | 6 | 8 |
| Cyanobacteria Cell Counts(k)/ml | 1297.675 | 583.242 | 940.458 | 0.000 | 154.729 | 491.262 | 1128.339 | 510.957 | 133.060 | 157.682 | 84.381 |
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