Record Display for the EPA National Library Catalog


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 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
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.)