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RECORD NUMBER: 299 OF 731

OLS Field Name OLS Field Data
Main Title Estimation of Phytoplankton Decomposition Rates Using Two-Stage Continuous Flow Studies.
Author Rodgers, P. W. ; DePinto, J. ;
CORP Author De Paul Univ., Grosse Ile, MI. Large Lakes Research Station.;Environmental Research Lab.-Duluth, MN.
Year Published 1983
Report Number EPA-600/J-83-119;
Stock Number PB84-123843
Additional Subjects Phytoplankton ; Decomposition ; Lakes ; Biomass ; Stress(Physiology) ; Nutrients ; Mortality ; Bacteria ; Mathematical models ; Reprints ;
Holdings
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NTIS  PB84-123843 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 13p
Abstract A two-stage continuous flow (TSCF) system was used to quantify phytoplankton decomposition rates and to characterize the decay process as a function of phytoplankton species, phytoplankton physiological state, and the presence and character of a decomposer community. A TSCF system allowed a steady-state phytoplankton culture, grown in the first stage, to be the feed to a darkened second stage decomposition culture. A mass balance on the phytoplankton biomass in the second stage quantitatively assessed the magnitude of the decomposition rate. The results of 12 experimental runs revealed that the relative order of decay rates among three phytoplankton species tested was Microcystis (blue-green) > Asterionella (diatom) > Scenedesmus (green). The results also suggest a strong dependence of decay rates on the presence and origin of the decomposer community in the second stage. A decomposer community originating from a hypereutrophic lake accounted for higher decay rates than did an inoculum from mesotrophic waters of Lake Ontario. (Copyright (c) 1983 Pergamon Press Ltd.)
Availability Notes Pub. in Water Research v17 n7, p761-769 1983.
NTIS Title Notes Journal article.
Title Annotations Reprint: Estimation of Phytoplankton Decomposition Rates Using Two-Stage Continuous Flow Studies.
PUB Date Free Form 1983
Category Codes 6C; 57C
NTIS Prices Not available NTIS
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 406246959
Origin NTIS
Type CAT