Record Display for the EPA National Library Catalog

RECORD NUMBER: 8 OF 22

OLS Field Name OLS Field Data
Main Title Influence of Sieve Mesh Size Selectivity on Benthic Invertebrate Indices of Eutrophication.
Author Mason, Jr., William T. ; Lewis, Philip A. ; Hudson, Patrick L. ;
CORP Author Environmental Monitoring and Support Lab.-Cincinnati, OH.
Year Published 1975
Report Number EPA-600/J-75-003;
Stock Number PB80-204696
Additional Subjects Particle size ; Invertebrates ; Samplers ; Water pollution ; Sieves ; Aquatic biology ; Worms ; Benthos ; Larvae ; Diptera ; Indicator species ; Reprints ; Eutrophication
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB80-204696 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 15p
Abstract
The selective retention of benthic invertebrates by sieves of various mesh sizes was demonstrated by Jonasson (1955, 1958) who reported that decreasing the mesh opening from 0.62 to 0.51 mm (effective decrease on one-third mesh opening area) resulted in samples with an average of 47% more Tanypus chironomid larvae. Sieve mesh size was also found to be highly selective toward oligochaetes of particular size ranges. Studies supported Jonasson's findings that the head capsule width of chironomid larvae governed their retention.