Record Display for the EPA National Library Catalog

RECORD NUMBER: 135 OF 2557

OLS Field Name OLS Field Data
Main Title Animal-Sediment Relationships of the Upper and Central Chesapeake Bay.
Author Reinharz, Eli ; O'Connell, Arthur ;
CORP Author Johns Hopkins Univ., Baltimore, MD.;Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Year Published 1983
Report Number EPA-R-805964; EPA-600/3-83-033;
Stock Number PB83-207738
Additional Subjects Aquatic animals ; Sediments ; Benthos ; Chesapeake Bay ; Marine biology ; Salinity ; Estuaries ; Populations ; Deep water ; Turbidity ; Anoxia ; Mud ; Worms ; Sands ; Mixing ; Isotopic labeling ; Lead isotopes ; Ocean surface ; Radiography ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB83-207738 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 251p
Abstract
Fifty-two bottom sediment box core samples were taken in fall 1978 and summer 1979 to investigate the relationship between benthic biota and the sedimentary environment of the upper and central Chesapeake Bay. Examination of the vertical distribution of the benthos and radiographic analysis of the sediments determined the degree of physical and biological activities and interactions. The benthic macrofauna were characterized by opportunistic as well as equilibristic species that inhabit a wide range of salinity and substrate types. The number of species increased down the estuary. Greatest species populations were found in the mixed-sediment type environments. Most biogenic structures are produced by polychaetous annelids. Species population patterns and previous Pb210 data in Chesapeake Bay suggest that biological mixing occurs down to 30 cm, being greatest at the sediment surface.