Record Display for the EPA National Library Catalog


Main Title Classification of lakes in the coast range ecoregion with respect to nutrient processing.
Author Vaga, R. M. ; Petersen, R. R. ; Herlihy, A. T. ;
CORP Author Environmental Protection Agency, Seattle, WA. Region X. ;Portland State Univ., OR. Environmental Sciences and Resources. ;Oregon State Univ., Corvallis. Dept. of Fisheries and Wildlife.
Publisher U.S. Environmental Protection Agency, Region 10, Office of Water & Watersheds,
Year Published 2005
Report Number EPA 910-R-05-002
Stock Number PB2006-115538
OCLC Number 71000030
Subjects Water quality--Northwest, Pacific ; Lakes--Northwest, Pacific ; Reservoirs--Northwest, Pacific
Additional Subjects Lakes ; Nutrients ; Water quality ; Coastal areas ; Classifying ; Limnology ; Chlorophyll ; Reservoirs ; Eutrophication ; Water pollution ; Stratification ; Pollutants ; Water resources ; Oregon ; Washington(State) ; Methodology ; Ecoregions
Internet Access
Description Access URL$FILE/CoastRangeLakesReport.pdf
Library Call Number Additional Info Location Last
ESAD  EPA 910-R-05-002 4 copies Region 10 Library/Seattle,WA 06/10/2016
NTIS  PB2006-115538 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi,40 p. : iil., maps ; 26 cm.
This report presents one methodology to classify natural lakes with respect to nutrient processing. Lakes in the Coast Range Ecoregion were inventoried and lakes greater than 4 ha in surface area were chosen as the target population. A methodology was then developed based upon expert opinion to categorize lakes in the ecoregion based upon basic limnological principles. The categories were developed without recourse to nutrient data. Analysis of total P, total N, chlorophyll and Secchi was carried out for (1) the Coast Range lakes as a whole and (2) for each lake category. Results suggest that these parameters have inherently different variability among lake categories which affects their utility in developing numeric nutrient criteria.
"December 2005."