Table 3.
Cyanobacteria neurotoxin concentrations (µg/L) measured in water samples from Nebraska reservoirs from 2009 and 2010. HPLC/FL detection limits were 5.0 µg/L for BMAA, 4.3 for BOAA, 7.0 for DABA, 6.0 for anatoxin-a, and 5.0 µg/L for microcystin †. ND = Not Detected; † Microcystin concentrations determined by Abraxis ELISA method are from the Nebraska Department of Environmental Quality website.
| Reservoir | County | Dates sampled (number of samples) | BMAA (µg/L) 2009/2010 | DABA (µg/L) 2009/2010 | Anatoxin-a (µg/L) 2009/2010 | Microcystins † (µg/L) 2009/2010 |
|---|---|---|---|---|---|---|
| Holmes | Lancaster | 9.7.09(3)/8.6.10(3) | 6.0/ND | 6.9/ND | 5.0/ND | 3.8/0.98 |
| Pawnee | Lancaster | 10.28.09(2)/8.20.10(3) | 11.3/4.2 | 12.7/ND | 14.4/3.04 | 11.0/5.9 |
| Wagon Train | Lancaster | 10.6.09(3)/10.26.10(3) | ND/ND | ND/ND | ND/ND | ND/ND |
| Stage Coach | Lancaster | 10.7.09(3)/10.26.10(3) | ND/ND | ND/ND | ND/ND | ND/ND |
| East Twin | Seward | 10.9.09(3)/10.25.10(3) | ND/ND | ND/ND | ND/ND | ND/ND |
| Rockford | Gage | 8.3.09(3)/8.22.10(3) | 24.5/18.3 | 13.2/13.6 | 8.4/4.8 | 44.5/11.9 |
| Kirkman’s Cove | Richardson | 8.3.09(3)/8.8.10(3) | 2.1/25.3 | 3.9/14.7 | 35.0/6.0 | 14.8/35.0 |
| Swan Creek | Saline | 9.10.09(2)/9.9.10(3) | 1.8/ND | 3.0/ND | 1.2/ND | 6.3/21.0 |
| Conestoga | Lancaster | 10.8.09(02)/8.23.10(3) | ND/ND | ND/ND | ND/ND | 7.8/0.13 |
| Willow Creek | Pierce | 8.30.09(3)/10.1.10(3) | ND/12.6 | ND/21.1 | ND/16.1 | 15.1/35.0 |
| Branched Oak | Lancaster | 9.20.010(2)/9.20.10(3) | ND/ND | ND/ND | ND/1.84 | 0.92/2.2 |
| Bluestem | Lancaster | 9.25.09(2)/9.8.10(3) | ND/ND | ND/1.78 | ND/2.08 | 18.3/0.15 |