Record Display for the EPA National Library Catalog

RECORD NUMBER: 25 OF 41

OLS Field Name OLS Field Data
Main Title Power-Cost Efficiency of Eight Macrobenthic Sampling Schemes in Puget Sound, Washington, USA.
Author Ferraro, S. P. ; Cole, F. A. ; DeBen, W. A. ; Swartz, R. C. ;
CORP Author Environmental Research Lab.-Narragansett, Newport, OR. Mark O. Hatfield Marine Science Center.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/289;
Stock Number PB90-196650
Additional Subjects Benthonic zone ; Oceanographic surveys ; Aquatic biology ; Bottom water ; Cost effectiveness ; Statistical analysis ; Efficiency ; Methodology ; Biomass ; Reprints ; Water pollution sampling ; Environmental monitoring ; Comparative evaluations
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB90-196650 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/15/1990
Collation 12p
Abstract
The importance of determining the appropriate sampling scheme (sample unit size (area x depth) and sieve mesh size) for quantitative macrobenthic studies is often underestimated. The paper presents a method for determining the optimum among a set of sampling schemes for detecting differences in location when the statistical model is a t-distribution for comparisons of two means. The authors define the 'optimum' scheme as the least costly scheme which is capable of reliably detecting a desired difference. Following a description of the method, the authors present an example showing how the method was used to determine the overall optimum sampling scheme among eight schemes to detect differences between a reference and a putative polluted site in the Everett Harbor area of Puget Sound, Washington, on 11 measures of community structure.