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The USGS publishes peer-reviewed reports and journal articles which are used by Chesapeake Bay Program resource managers and policy makers to make science-based decisions for ecosystem conservation and restoration. Use the Search box below to find publications on selected topics.

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Filter Total Items: 963

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January 1, 1982

Uranium-series dating of mollusks and corals, and age of Pleistocene deposits, Chesapeake Bay area, Virginia and Maryland Uranium-series dating of mollusks and corals, and age of Pleistocene deposits, Chesapeake Bay area, Virginia and Maryland

Geologic mapping in conjunction with uranium-series dating of fossil mollusks and corals suggests that the low-lying ( 17 m in altitude) terrace deposits in the central and southern Chesapeake Bay area include two main depositional sequences, each of which represents a high stand of the sea in late Pleistocene time. The older depositional sequence includes the Accomack and Omar beds of...

Authors

Robert B. Mixon, Barney J. Szabo, James Patrick Owens

Chesapeake Bay Activities

January 1, 1981

Sedimentary framework of the Potomac River estuary, Maryland Sedimentary framework of the Potomac River estuary, Maryland

Analyses of seismic-reflection profiles, sediment cores, grab samples, and side-scan sonar records, along with previously collected borehole data, reveal the characteristics, distribution, and geologic history of the shallow strata beneath the Potomac River estuary. The lowermost strata are sediments of the Chesapeake Group (lower Miocene to lower Pleistocene) that crop out on land near...

Authors

Harley J. Knebel, E. Ann Martin, J.L. Glenn, Sally W. Needell

Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Chesapeake Bay Activities

January 1, 1981

Chesapeake Bay most important wintering area for canvasback duck Chesapeake Bay most important wintering area for canvasback duck

No abstract available.

Authors

Matthew C. Perry

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities

January 1, 1981

Twenty-five year trends in diving duck populations in Chesapeake Bay Twenty-five year trends in diving duck populations in Chesapeake Bay

No abstract available.

Authors

Matthew C. Perry, R. E. Munro, G.M. Haramis

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities

January 1, 1981

Effects of erosion control structures along a portion of the northern Chesapeake Bay shoreline Effects of erosion control structures along a portion of the northern Chesapeake Bay shoreline

A 6.500-meter reach of western Chesapeake Bay shoreline (lower Mayo Peninsula) lost about 1.1??106 cubic meters of sediment (equivalent to 170 cubic meters lost per meter of shoreline) between 1846 and 1932, when the first aerial photographs show the shoreline already substantially protected by a system of groins and intermittent bulkheading. These structures have eliminated the fastland...

Authors

C.F. Zabawa, R.T. Kerhin, S. Bayley

Chesapeake Bay Activities

January 1, 1981

Yellow rail collected in Maryland Yellow rail collected in Maryland

No abstract available.

Authors

E.M. Martin, Matthew C. Perry

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities

January 1, 1981

Asiatic clam (Corbicula manilensis) and other foods used by waterfowl in the James River, Virginia Asiatic clam (Corbicula manilensis) and other foods used by waterfowl in the James River, Virginia

Corbicula manilensis was found in the gizzards of 24 ducks of 5 species taken from the James River, Virginia, between 1973 and 1976. Percent average volume in these species ranged from trace to 6%. This is the first known occurrence of this exotic clam in the food of duck in Chesapeake Bay. A total of 135 other food items was identified from the 116 gizzards of 9 species that were...

Authors

Matthew C. Perry, F.M. Uhler

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities

January 1, 1981

Synthesis and Evaluation of Avian Populations and Habitat Data for Pennsylvania Synthesis and Evaluation of Avian Populations and Habitat Data for Pennsylvania

No abstract available.

Authors

S.H. Anderson, C.S. Robbins, J.R. Partelow, J.S. Weske

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities

January 1, 1981

Concentrations of selected trace metals in shallow cores from the tidal Potomac River and Estuary: 1978 and 1979 Concentrations of selected trace metals in shallow cores from the tidal Potomac River and Estuary: 1978 and 1979

No abstract available.

Authors

E. Ann Martin, J.L. Glenn, C. A. Rice, G. Harrison, E. Gum, M. Curington

Chesapeake Bay Activities

January 1, 1980

Ecology of a Maryland population of black rat snakes (Elaphe o. obsoleta) Ecology of a Maryland population of black rat snakes (Elaphe o. obsoleta)

Behavior, growth and age of black rat snakes under natural conditions were investigated by mark-recapture methods at the Patuxent Wildlife Research Center for 22 years (1942-1963), with limited observations for 13 more years (1964-1976). Over the 35-year period, 330 snakes were recorded a total of 704 times. Individual home ranges remained stable for many years; male ranges averaged at...

Authors

Lucille F. Stickel, William H. Stickel, F. C. Schmid

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities

January 1, 1980