Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Role of Bioturbation in Sediment Resuspension and Its Interaction with Physical Shearing.
Author Davis, W. R. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Publisher 1993
Year Published 1993
Report Number EPA/600/J-93/488 ;ERLN-1535;
Stock Number PB94-130192
Additional Subjects Suspended sediments ; Turbation ; Marine animals ; Burrows ; Sediment-water interfaces ; Bottom sediments ; Benthic fauna ; Benthos ; Shear properties ; Long Island Sound ; Reprints ; Bioturbation ; Resuspension ; Infauna
Library Call Number Additional Info Location Last
NTIS  PB94-130192 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 05/14/1994
Collation 16p
Marine benthic fauna play an important role in governing sediment-water relationships, including resuspension of particle-borne contaminants. Constant burrowing and subsurface deposit-feeding tend to eject sediment into overlying water, break up the cohesive structure of silt-clay sediment, increase sediment-water content, and increase physical resuspension. Experimental evidence shows that resuspension of sediment is influenced by shear stress at the sediment-water interface and/or by the type, abundance and reworking time of infauna. Resuspension by biota was investigated by monitoring the turbidity of excurrent water of deposit-feeding species. The interaction between biota and physical shear in sediment resuspension was measured using an annular flume and a flume-calibrated Particle Entrainment Simulator. (Copyright (c) 1993 Elsevier Science Publishers.)