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: 942
Bioassay for phytotoxicity of toxicants to sago pondweed Bioassay for phytotoxicity of toxicants to sago pondweed
No abstract available.
Authors
W. James Fleming, J.J. Momot, M.S. Ailstock
Food habits and distribution of wintering canvasbacks, Aythya valisineria, on Chesapeake Bay Food habits and distribution of wintering canvasbacks, Aythya valisineria, on Chesapeake Bay
Baltic clams (Macoma balthica) were the predominant food items of 323 canvasbacks (Aythya valisineria) collected throughout Chesapeake Bay during 1970–1979. Natural vegetation constituted 4% of the food volume. Widgeongrass (Ruppia maritima) and redhead grass (Potamogeton perfoliatus) constituted the greatest percent volume and frequency of occurrence among the plant species, whereas...
Authors
Matthew C. Perry, F.M. Uhler
Nitrogen cycling between sediment and the shallow-water column in the transition zone of the Potomac River and estuary. I. Nitrate and ammonium fluxes Nitrogen cycling between sediment and the shallow-water column in the transition zone of the Potomac River and estuary. I. Nitrate and ammonium fluxes
A three-year study of seasonal variation in water-column and sediment nitrogen species was conducted in the transition zone of the Potomac River 35 m from the Virginia shore at a site with an average water-column depth of approximately 1 m over sandy sediment. A diffusion-controlled sampler was used to collect water samples from the water column, at the interface between the water column...
Authors
N.S. Simon
Phytoplankton dynamics of the fresh, tidal Potomac River, Maryland, for the summers of 1979 to 1981 Phytoplankton dynamics of the fresh, tidal Potomac River, Maryland, for the summers of 1979 to 1981
The distribution and abundance of phytoplankton in the fresh, tidal Potomac River, Md., was different during 1979-81 from that observed in the 1960's and 1970's. Concentrations of phytoplankton in the 1960's and 1970's reached maximum attainable levels that were limited only by self-shading. A sag in phytoplankton abundance, apparent during the summers of 1980 and 1981 between Rosier...
Authors
Ronald R.H. Cohen
Structure, age and origin of the bay-mouth shoal deposits, Chesapeake Bay, Virginia Structure, age and origin of the bay-mouth shoal deposits, Chesapeake Bay, Virginia
The mouth of Chesapeake Bay contains a distinctive shoal complex and related deposits that result from the complex interaction of three different processes: (1) progradation of a barrier spit at the southern end of the Delmarva Peninsula, (2) strong, reversing tidal currents that transport and rework sediment brought to the bay mouth from the north, and (3) landward (bayward) net non...
Authors
Steven M. Colman, C. Rick Berquist, C. H. Hobbs
Survival of spotted salamander eggs in temporary woodland ponds of coastal Maryland Survival of spotted salamander eggs in temporary woodland ponds of coastal Maryland
Temporary ponds on the Atlantic Coastal Plain in maryland were characterized according to water chemistry, rain input, phytoplankton, zooplankton and use by the spotted salamander Ambystoma maculatum during March-October 1983-1984. Neither the number of egg masses per unit of pond surface (abundance) nor the survival of spotted salamander embryos was significantly correlated (P>0.05)...
Authors
P.H. Albers, R. M. Prouty
Survival of striped bass larvae and yearlings in relation to contaminants and water quality in the upper Chesapeake Bay Survival of striped bass larvae and yearlings in relation to contaminants and water quality in the upper Chesapeake Bay
This study was designed to evaluate survival of striped bass yolk-sac larvae and yearlings at three locations in their natural spawning habitat in the upper Chesapeake Bay (Chesapeake and Delaware Canal) using “in-situ” chambers; correlate larval and yearling survival with the presence of 11 water quality parameters, 10 inorganic contaminants and 21 organic contaminants and assess...
Authors
L. W. Hall, Alfred E. Pinkney, L. Herman, Susan E. Finger
Recommendations concerning the striped bass restoration program for the Atlantic Coast with emphasis on Chesapeake Bay Recommendations concerning the striped bass restoration program for the Atlantic Coast with emphasis on Chesapeake Bay
No abstract available at this time
Authors
N. C. Parker, R.W. Miller
Loads of suspended sediment and nutrients from local nonpoint sources to the tidal Potomac River and Estuary, Maryland and Virginia, 1979-81 water years Loads of suspended sediment and nutrients from local nonpoint sources to the tidal Potomac River and Estuary, Maryland and Virginia, 1979-81 water years
Loads of suspended sediment, phosphorus, nitrogen, biochemical oxygen demand, and dissolved silica discharged to the tidal Potomac River and Estuary during the !979-81 water years from three local nonpoint sources have been calculated. The loads in rain falling directly upon the tidal water surface and from overflows of the combined sewer system of the District of Columbia were...
Authors
R. Edward Hickman
Neutralizing activity against infectious pancreatic necrosis virus in striped bass, Morone saxatilis, from the Chesapeake Bay Neutralizing activity against infectious pancreatic necrosis virus in striped bass, Morone saxatilis, from the Chesapeake Bay
No abstract available.
Authors
S.J. Wechsler, P. E. McAllister, F. M. Hetrick