Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Analysis of the Benthic Macroinvertebrate Community Structure for Assessment of Water Quality of the Des Moines River.
Author Westpha, Richard Leonard ;
CORP Author Drake Univ., Des Moines, Iowa.
Year Published 1973
Report Number OWRR-A-045-IA; 03210,; A-045-IA(2)
Stock Number PB-226 785
Additional Subjects Des Moines River ; Water quality ; Biological surveys ; Benthos ; Aquatic animals ; Water pollution ; Iowa ; Communities ; Theses ; Species diversity ; Des Moines(Iowa)
Library Call Number Additional Info Location Last
NTIS  PB-226 785 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 57p
Artificial substrates were used to measure differences in macroinvertebrate species diversity at five stations in the Des Moines River in the metropolitan area of Des Moines to assess water quality. Results showed that members of the insect order Trichoptera were the most abundant organisms collected. An analysis of variance for standardized distance (S.D.) values demonstrated significant difference for sampling dates and location of stations. However, when corrected for current velocity, no significant difference was detected for location of stations, but significance over time was retained.