Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Limnology of Stockbridge Bowl, Stockbridge, Massachusetts.
Author Ludla, Stuart D. ; Hutchiso, Karen S. ; Henderso, George E. ;
CORP Author Massachusetts Univ., Amherst. Water Resources Research Center.
Year Published 1973
Report Number Completion-FY-73-4; OWRR-A-044-MASS; 10561,; A-044-MASS(1)
Stock Number PB-221 021
Additional Subjects ( Stockbridge Bowl ; Limnology) ; Ecology ; Lake Mahkeenac ; Massachusetts ; Dissolved gases ; Oxygen ; Silicon dioxide ; Calcium ; Magnesium ; Littoral zone ; Aquatic plants ; Phytoplankton ; Primary biological productivity ; Herbicides ; Stratification ; Water pollution ; Sedimentation ; Eutrophication
Library Call Number Additional Info Location Last
NTIS  PB-221 021 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 65p
Stockbridge Bowl is a eutrophic hard-water lake. Mean annual gross primary productivity was ca. 4.9 g C per square meter per day. Microcoleus lyngbyaceus dominated the phytoplankton through much of the year and formed a productive metalimnetic plate during summer stratification. Silica never became limiting to diatom growth, despite a spring diatom pulse. Silica, calcium and magnesium all showed inverse clinograde distributions during periods of stratification and values in the hypolimnion began to rise before anoxia. Fall in Ca-Mg hardness and delayed rise in Si values in the summer epilimnion were caused by precipitation of marl and uptake of Si in the littoral zone. Surficial sediments were laminated and the laminae were approximately annual. Analysis of diatom communities in the sediment revealed rapid increase in productivity over the past quarter century associated with development of the watershed.