Main Title |
Multivariate Analysis of Experimental Marine Ecosystems. |
Author |
Oviatt, C. A. ;
Perez, K. T. ;
Nixon, S. W. ;
|
CORP Author |
Rhode Island Univ., Kingston. Graduate School of Oceanography.;Environmental Research Lab., Narragansett, RI. |
Year Published |
1977 |
Report Number |
EPA/600/J-77/166; |
Stock Number |
PB-299 348 |
Additional Subjects |
Benthos ;
Marine biology ;
Sewage disposal ;
Narragansett Bay ;
Invertebrates ;
Multivariate analysis ;
Time series analysis ;
Experimental design ;
Salinity ;
Fresh water ;
Sediments ;
Chlorophylls ;
Salt water ;
Nutrients ;
Concentration(Composition) ;
Light(Visible radiation) ;
Comparison ;
Pelagic zone ;
Rhode Island ;
Reprints ;
Microcosms ;
Ecosystems ;
Ocean waste disposal ;
Eutrophication ;
Bioindicators
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-299 348 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
Twelve replicate 150-l laboratory microcosms were developed using whole water samples and natural benthic communities from Narragansett Bay, Rhode Island (USA). The microcosms were scaled to the bay in terms of salinity, temperature, light input, volume pelagic community to area of benthic community, density of macrofauna, turbulent mixing, and flushing time. The microcosms were self maintaining during a six month study period with over 35 species of phytoplankton and 30 species of macro-invertebrates. Some 25 species of macroplankton entered the microcosms and successfully colonized the benthic communities. Zooplankton were present in all life stages. After an initial study of replication among the 12 tanks, the microcosms were perturbed with 3 levels of treated urban sewage for a three month period. Three microcosms were maintained at each level with 3 tanks remaining as controls. At the end of 3 months, the sewage input was terminated and the response of the systems was followed for an additional 2 months. Both time series data and multivariate statistical analysis of over 10 different parameters indicated that the replication of the microcosms was adequate to show the effects of experimental treatments. |
Supplementary Notes |
Pub. in Helgolander Wiss Meeresunters, 30, p30-46 1977. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Multivariate Analysis of Experimental Marine Ecosystems. |
PUB Date Free Form |
1977 |
Category Codes |
13B; 8A; 8J; 68D; 47D; 47C |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/19 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323767205 |
Origin |
NTIS |
Type |
CAT |