Record Display for the EPA National Library Catalog

RECORD NUMBER: 46 OF 230

OLS Field Name OLS Field Data
Main Title Effects of Atrazine on 'Zostera marina' in Chesapeake Bay, Virginia.
Author Hershner, C. ; Ward, K. ; Illowsky, J. ; Delistraty, D. ; Martorana., J. ;
CORP Author Virginia Inst. of Marine Science, Gloucester Point.;Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Publisher Aug 82
Year Published 1982
Report Number EPA-R-805953; EPA/600/3-88/050;
Stock Number PB89-134118
Additional Subjects Atrazine ; Aquatic plants ; Herbicides ; Water pollution ; Chesapeake Bay ; Surveys ; Agriculture ; Runoff ; Mortality ; Land use ; Photosynthesis ; Field tests ; Dosage ; Exposure ; Greenhouses ; Morphology ; Maturation ; Estuaries ; Tables(Data) ; Maps ; Graphs(Charts) ; Zastera marina ; Eel grass ; Water pollution effects(Plants) ; Organic loading
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=2000VCH9.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB89-134118 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/14/1989
Collation 286p
Abstract
The project was designed to assess the effects of agricultural herbicides on submerged aquatic vegetation in the Lower Chesapeake Bay. Atrazine was selected for testing because it is the most widely utilized herbicide in the Bay region. Zostera marina was the submerged vegetation studied. The project began with two surveys. The first survey, conducted in 1979, covered forty eight stations throughout the Virginia portion of the Chesapeake Bay. The survey was designed to indicate typical atrazine loading for the lower Bay. A second survey in 1980 was limited to the Severn River, and was intended to indicate the duration of peak atrazine loading. Field dosing experiments, utilizing large plexiglass enclosures, measured effects of short-term atrazine exposure on the net production of the Zostera community. Greenhouse experiments, utilizing a flow-through dosing system, measured effects of long-term (21 day) atrazine exposure on the morphology of mature Zostera plants.