Publications

Filters

Settings

Results

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.

If you wish to search by author, click the button below to be directed to USGS Publications Warehouse.

USGS Publications Warehouse

Filter Total Items: 961

Publication Type

Node Release Date

States

Fulltext search

January 1, 1984

A water-quality study of the tidal Potomac River and Estuary — An overview A water-quality study of the tidal Potomac River and Estuary — An overview

The U.S. Geological Survey began a 5-year interdisciplinary study of the tidal Potomac River and Estuary in October of 1977. The objectives of the study are: (1) to provide a basic understanding of physical, chemical, and biological processes; (2) to develop flow and transport models to predict the movement and fate of nutrients and algaes and (3) to develop efficient techniques for the...

Water Resources Mission Area, National Water Quality Program, Chesapeake Bay Activities

January 1, 1984

Feeding flights of nesting wading birds at a Virginia colony Feeding flights of nesting wading birds at a Virginia colony

Feeding flights of Snowy Egrets (Egretta thula), Tricolored Herons (E. tricolor), Little Blue Herons (E. caerulea), and Cattle Egrets (Bubulcus ibis) were monitored at a small nesting colony near Chincoteague, Virginia during late May and June 1979. All four species varied their flight directions over a series of days. Cattle Egrets oriented in a different direction (toward uplands) from...

Authors

R.M. Erwin

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

January 1, 1984

An aerial photo-census of Chesapeake Bay and North Carolina canvasbacks An aerial photo-census of Chesapeake Bay and North Carolina canvasbacks

No abstract available.

Authors

G.M. Haramis, J.R. Goldsberry

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

January 1, 1984

Threatened breeding birds of Maryland Threatened breeding birds of Maryland

No abstract available.

Authors

C.S. Robbins, D.D. Boone

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

January 1, 1983

Distribution and abundance of waterfowl and submerged aquatic vegetation in Chesapeake Bay Distribution and abundance of waterfowl and submerged aquatic vegetation in Chesapeake Bay

No abstract available.

Authors

R. E. Munro, Matthew C. Perry

Chesapeake Bay Activities

January 1, 1983

Water quality data for selected streams tributary to the tidal Potomac River and Estuary, Maryland and Virginia, 1979-81 water years Water quality data for selected streams tributary to the tidal Potomac River and Estuary, Maryland and Virginia, 1979-81 water years

Observations of the physical, chemical, and biological water quality of five streams draining to the tidal Potomac River and Estuary during the 1979-81 water years are tabulated. The streams sampled are Rock Creek, the Northwest and Northeast Branches of the Anacostia River, the Occoquan River, and St. Clements Creek. Samples, usually collected during storms, were routinely analyzed for...

Authors

R.E. Hickman

Chesapeake Bay Activities

January 1, 1983

Distribution of submersed aquatic macrophytes in the tidal Potomac River Distribution of submersed aquatic macrophytes in the tidal Potomac River

Results of a 3-year survey (1978?1980) and review of historic trends have shown a major decline in the number of species and the distribution of submersed aquatic macrophytes in the tidal Potomac River since the early 1900's. The freshwater tidal river is essentially devoid of plants and only very sparse populations remain in the mesohaline section of the estuary. Present plant...

Authors

G.M. Haramis, V. Carter

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

January 1, 1983

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

Chesapeake Bay Activities

January 1, 1983

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

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

January 1, 1983