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 |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB84-123843 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
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 |