Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Annual Nutrient Cycles in a Marine Microcosm.
Author Pilson, Michael E. Q. ; Oviatt, Candace A. ; Nixon, Scott W. ;
CORP Author Rhode Island Univ., Kingston.;Environmental Research Lab., Narragansett, RI.
Year Published 1982
Report Number EPA-CR-80-7795; EPA-600/D-82-216 ; ERLN-X22
Stock Number PB82-189143
Additional Subjects Nutrients ; Primary biological productivity ; Narragansett Bay ; Ecology ; Ammonia ; Inorganic nitrates ; Inorganic phosphates ; Inorganic silicates ; Concentration(Composition) ; Periodic variations ; Comparison ; Abundance ; Plankton ; Tanks(Containers) ; Laboratories ; Rhode Island ; Reprints ; Microcosm ; Ecosystems
Library Call Number Additional Info Location Last
NTIS  PB82-189143 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 28p
Concentrations of ammonia, nitrate plus nitrite, phosphate, and silicate measured in microcosms at weekly intervals during one full year of operation are compared with concurrent data from adjacent Narragansett Bay and with data from a year-long survey of the bay taken in 1972-1973. The major features of the annual cycles for each nutrient in the bay were reflected in observations from nine microcosm tanks. This indicates that the forces driving the cycles in the bay must have counter-parts in the microcosms and that the general features of chemical cycling were similar.