| Main Title |
Comparison of some new and old indices and measurements of trophic state / |
| Author |
Taylor, W. D. ;
Williams, L. R. ;
Hern, S. C. ;
Lambou, V. W.
|
| Other Authors |
|
| CORP Author |
Environmental Monitoring and Support Lab., Las Vegas, NV. |
| Publisher |
Environmental Monitoring and Support Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1979 |
| Report Number |
EPA-600/3-79-079 |
| Stock Number |
PB80-153679 |
| OCLC Number |
08037521 |
| Subjects |
Phytoplankton ;
Freshwater plants ;
Lakes ;
Water quality ;
Freshwater flora
|
| Additional Subjects |
Phytoplankton ;
Lakes ;
Water pollution ;
Indices(Ratios) ;
Ranking ;
Evaluation ;
Turbidity ;
Concentration(Concentration) ;
Phosphorus ;
Chlorophylls ;
Algae ;
Bioassay ;
Comparison ;
Biomass ;
Conductivity ;
United States ;
Trophic level ;
Eutrophication ;
Biological indices ;
Species diversity
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
QP82.2.P6E2 600, 1979, no.079 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EJBD |
EPA 600-3-79-079 |
|
Headquarters Library/Washington,DC |
10/26/2016 |
| ELBD ARCHIVE |
EPA 600-3-79-079 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB80-153679 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
ix, 51 pages ; 28 cm. |
| Abstract |
Thirty-eight indices and measurements of trophic state were compared to evaluate their relative abilities to trophically rank a test set of 44 eastern and southeastern U.S. lakes, representing 17 states. Lake rankings based upon total phosphorus and chlorophyll a levels served as standards for evaluation of the indices by Spearman Rank Correlation procedures. The new phytoplankton community-based indices turned in 4 of the top 5 performances against the chlorophyll a standard, while Secchi disk transparency, phosphorus loading models, multivariate analyses, and total Kjeldahl nitrogen provided strong rank correlations with total phosphorus. |
| Notes |
"July 1979." Includes bibliographical references (pages 36-41). |
