Development of eutrophication criteria for Minnesota streams and rivers using multiple lines of evidence
Heiskary, SA; Bouchard, RW, Jr
HERO ID
3315304
Reference Type
Journal Article
Year
2015
Language
English
| HERO ID | 3315304 |
|---|---|
| In Press | No |
| Year | 2015 |
| Title | Development of eutrophication criteria for Minnesota streams and rivers using multiple lines of evidence |
| Authors | Heiskary, SA; Bouchard, RW, Jr |
| Journal | Freshwater Science |
| Volume | 34 |
| Issue | 2 |
| Page Numbers | 574-592 |
| Abstract | Development of water-quality criteria to address eutrophication impacts on aquatic life in streams and rivers lags behind development of lake eutrophication criteria, in part, because of multiple stressor pathways, natural variability in nutrient responses between water bodies, and a lack of methods that can address this complexity. Several investigators have demonstrated significant and predictable relationships among summer nutrients, sestonic chlorophyll a, and 5-d biochemical O-2 demand (BOD5) in medium to large Minnesota rivers. Diel dissolved O-2 (DO) flux also is positively correlated with total P (TP) and chlorophyll a concentrations. Our findings demonstrate significant relationships among several sensitive macroinvertebrate and fish metrics and TP, chlorophyll a, BOD5, and diel DO flux. Criteria were developed using multiple lines of evidence including quantile regression and regression tree analysis of macroinvertebrate and fish data and reference-condition analysis. A regional approach was used to develop eutrophication criteria and demonstrated that different criteria should be applied across regions. Draft river eutrophication criteria based on these lines of evidence are presented. |
| Doi | 10.1086/680662 |
| Wosid | WOS:000354387700016 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | chlorophyll a; river eutrophication criteria; nutrients; phosphorus; quantile regression; regression tree analysis |
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