Main Title |
Exploratory Analysis of Microcosm and Ecosystem Behavior Using Multivariate Techniques. |
Author |
Oviatt, C. A. ;
Walker, H. ;
Pilson, M. E. Q. ;
|
CORP Author |
Rhode Island Univ., Kingston. Graduate School of Oceanography.;Environmental Research Lab., Narragansett, RI. |
Year Published |
1980 |
Report Number |
EPA-R-807795; EPA-600/J-80-386 ; ERLN-X20 |
Stock Number |
PB82-181876 |
Additional Subjects |
Plankton ;
Ecology ;
Water pollution ;
Narragansett Bay ;
Monitoring ;
Field tests ;
Nutrients ;
Chlorophylls ;
Differences ;
Laboratories ;
Comparison ;
Discriminate analysis ;
Divergence ;
Hydrocarbons ;
Metals ;
Reprints ;
Microcosms
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB82-181876 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
15p |
Abstract |
A conservative data set was chosen to describe ecosystem behavior; total zooplankton, chlorophyll a, ammonia, nitrite, plus nitrate, phosphate and silicate. These variables were measured weekly in the microcosms, as well as in a field survey of Narragansett Bay in 1972-73; thus a comparison data set was available. Two types of statistical techniques were used to explore the question of divergence among replicate microcosms and treatment groups (including the bay stations as treatment groups): Multiple Discriminant Analysis and Distance Statistics. The first was used to explore the major axes of variation between replicate tanks and bay stations. Distance statistics were used to describe the divergence of replicate tanks and treatment groups as a function of time. |
Supplementary Notes |
Pub. in Marine Ecology - Progress Series, v2 p179-191 1980. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: An Exploratory Analysis of Microcosm and Ecosystem Behavior Using Multivariate Techniques. |
PUB Date Free Form |
7 Feb 80 |
Category Codes |
8A; 6F; 68D; 47D; 57H |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/05 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323812530 |
Origin |
NTIS |
Type |
CAT |