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Publications

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: 954

Submersed aquatic plants of the tidal Potomac River Submersed aquatic plants of the tidal Potomac River

No abstract available.
Authors
Virginia Carter, Patricia T. Gammon, Nancy C. Bartow

Seasonal energetics and behavior of captive canvasbacks (Aythia valisineria) Seasonal energetics and behavior of captive canvasbacks (Aythia valisineria)

Dramatic changes in the food habits and distribution of Chesapeake Bay canvasbacks (Aythya valisineria) generated a desire to better understand the energetics and behavior of this species on its wintering grounds. Captive canvasbacks were maintained ad libitum on 5 diets during the winters of 1978-80 to evaluate varying protein and energy levels in the diets. Food consumption, weight...
Authors
Matthew C. Perry, Wayne J. Kuenzel

Primary productivity by phytoplankton in the tidal, fresh Potomac River, Maryland, May 1980 to August 1981 Primary productivity by phytoplankton in the tidal, fresh Potomac River, Maryland, May 1980 to August 1981

Primary productivity by phytoplankton was measured on samples collected from the Potomac Tidal River, Maryland. The studies were performed monthly from May 1980 to September 1981. Additional studies were done once a week in August 1980, twice a week from August 4 to 8, 1980 and twice in September 1980. Depth-integrated samples were collected at five stations and incubated in boxes that...
Authors
R.R. Cohen, S.O. Pollock

Benthic phosphorus regeneration in the Potomac River Estuary Benthic phosphorus regeneration in the Potomac River Estuary

The flux of dissolved reactive phosphate from Potomac riverine and estuarine sediments is controlled by processes occurring at the water-sediment interface and within surficial sediment. In situ benthic fluxes (0.1 to 2.0 mmoles m-2 day-1) are generally five to ten times higher than calculated diffusive fluxes (0.020 to 0.30 mmoles m-2 day-1). The discrepancy between the two flux...
Authors
E. Callender

Examination of woodcock nest sites in central Pennsylvania Examination of woodcock nest sites in central Pennsylvania

Evidence is given to support Iow selectivity in choice of nest sites by woodcock (Philohela minor). Habitat characteristics measured at 30 woodcock nest sites were compared with non-nest control sites in Huntingdon County, central Pennsylvania. Mean nest density per year was 1/4.8 ha within the 54-ha study area. Of 14 characteristics measured, higher shrub-stem density at nests was the...
Authors
R.A. Coon, B. Kenneth Williams, J.S. Lindzey, J.L. George
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