Record Display for the EPA National Library Catalog


Main Title Biogenic Structure of Lower Chesapeake Bay Sediments.
Author Nilsen, K. J. ; Diaz, R. J. ; Schaffner, L. C. ; Boesch, D. F. ; Bertelsen, R. ;
CORP Author Virginia Inst. of Marine Science, Gloucester Point.;Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Publisher Aug 82
Year Published 1982
Report Number EPA-R-805982; EPA/600/3-88/054;
Stock Number PB89-134407
Additional Subjects Sediments ; Benthos ; Aquatic animals ; Marine biology ; Chesapeake Bay ; Biological productivity ; Dissolved organic matter ; Invertebrates ; Mixing ; Tables(Data) ; Maryland ; Water chemistry ; Estuaries ; Path of pollutants
Library Call Number Additional Info Location Last
NTIS  PB89-134407 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 257p
The study was designed to obtain information on the animal-sediment relationships in the Chesapeake Bay as a means of assessing the relative importance of benthic macroinvertebrates in determining the distribution and fate of sediment-borne toxic substances. Large volume box cores for biological examination were collected simultaneously with cores taken by Maryland Geological Survey for interstitial water chemistry. Vertical distribution of organisms within the cores was utilized as a means of determining the depth of biological mixing. The vertical distribution of organisms has been found to be correlated to the depth of mixing. Employed was an x-ray technique to determine the relative amounts of mixing in different areas of the estuary as well as the types of biogenic structure produced by resident organisms.