Record Display for the EPA National Library Catalog

RECORD NUMBER: 4 OF 70

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
Author Title of a Work
Taylor, W. D.
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
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101KQ21.PDF
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).