Record Display for the EPA National Library Catalog

RECORD NUMBER: 410 OF 749

Main Title Impact of UV-B Radiation Upon Estuarine Microcosms.
Author Worrest, Robert C. ; Thomson, Bruce E. ; Van Dyke, Henry ;
CORP Author Oregon State Univ., Corvallis. Dept. of General Science.;Corvallis Environmental Research Lab., OR.
Year Published 1981
Report Number EPA-R-806490; EPA-600/J-81-625;
Stock Number PB83-219840
Additional Subjects Plankton ; Ultraviolet radiation ; Estuaries ; Primary biological productivity ; Ozone ; Solar radiation ; Chlorophylls ; Biomass ; Exposure ; Tolerances(Physiology) ; Morphology ; Reprints ; Microcosms
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NTIS  PB83-219840 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Abstract
Twelve flow-through estuarine microcosms were exposed daily to four different levels of UV-B radiation. In addition to a natural level of visible solar radiation. The parameters studied over a four week period were phytoplankton community composition, plankton biomass (ash-free dry weight), chlorophyll a concentration and primary productivity (radiocarbon uptake). With increased exposure to UV-B radiation there was an obvious alteration of the community composition. Daily exposure to enhanced levels of UV-B radiation also depressed the biomass, the chlorophyll a concentration and the radiocarbon uptake of samples from the ecosystems. (Copyright (c) 1981 Pergamon Press Ltd.)