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Main Title Nutrient chemistry of a large, deep lake in subarctic Alaska /
Author LaPerriere, Jacqueline D., ; LaPerriere, J. D., ; Tilsworth, T. ; Casper, L. A.
Other Authors
Author Title of a Work
Tilsworth, T.,
Casper, L. A.,
CORP Author Alaska Univ., Fairbanks. Inst. of Water Resources.;Corvallis Environmental Research Lab., OR.
Publisher Corvallis Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1978
Report Number EPA-600/3-78-088; PB-288979; EPA-R-800276
Stock Number PB-288 979
OCLC Number 04478731
Subjects Water quality--Alaska--Harding Lake ; Water quality--Measurement ; Water quality--Mathematical models ; Harding Lake (Alaska)
Additional Subjects Nutrients ; Limnology ; Water pollution ; Harding Lake ; Arctic regions ; Assessments ; Plant growth ; Invertebrates ; Hydrology ; Primary biological productivity ; Plankton ; Concentration(Composition) ; Nitrogen ; Phosphorus ; Carbon ; Oxygen ; Dissolved gases ; Bacteria ; Thermocline ; pH ; Alaska ; Water quality data
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-3-78-088 Headquarters Library/Washington,DC 01/30/2014
ELBD ARCHIVE EPA 600-3-78-088 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-3-78-088 AWBERC Library/Cincinnati,OH 04/10/1998
EMBD MF PB288-979 NRMRL/GWERD Library/Ada,OK 01/21/1994
ESAD  EPA 600-3-78-088 Region 10 Library/Seattle,WA 03/23/2010
ESBD  EPA-600-3-78-088 CPHEA/PESD Library/Corvallis,OR 09/05/2017
NTIS  PB-288 979 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xi, 129 pages : graphs, maps ; 28 cm.
The primary objective of this project was to assess the state of the water quality of Harding Lake, and to attempt to predict the effects of future development within its watershed. Since the major effect of degradation of water quality due to human activity is the promotion of nuisance growths of plants, the major emphasis was placed on measurements of plant growth and concentrations of the major nutrients they require. Planktonic algal growth was found to be low, below 95.6 gm/sq m/year, and the growth of submerged rooted plants was found to be relatively less important at approximately 1.35 gm/sq m/year. A model for predicting the effect of future real estate development in the watershed was modified and applied to this lake. This model adequately describes current water quality conditions. A secondary objective was to study the thermal regime of a deep subarctic lake. Hydrologic and energy budgets of this lake are given. Limited work on the zooplankton, fishes and benthic macroinvertebrates of this lake is also presented.
Institute of Water Resources, University of Alaska. Issued Sept. 1978. Includes bibliographical references (pages 109-114).