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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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January 1, 1967

Case report: Coccidiosis and lead poisoning in Canada geese Case report: Coccidiosis and lead poisoning in Canada geese

Four dead Canada geese (Branta canadensis L.) collected at the Prime Hook National Wildlife Refuge, Delaware were found to have both marked duodenal lesions of coccidiosis and high levels of lead in the liver. Although only one goose had lead shot in the gizzard, all four had levels of lead in the liver suggestive of lead poisoning.

Authors

L. N. Locke, George E. Bagley

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

January 1, 1966

Nesting of hooded mergansers of the Patuxent Wildlife Research Center, Laurel, Maryland Nesting of hooded mergansers of the Patuxent Wildlife Research Center, Laurel, Maryland

The first known record of Hooded Mergansers (Lophodytes cucullatus) nesting on the coastal plain of Maryland was in 1961, when Mr. Francis Uhler (pers. comm) found two clutches in Wood Duck nest boxes in impoundments at the Patuxent Wildlife Research Center, about five miles southeast of Laurel, Maryland. R.E. Stewart and C.S. Robbins (“Birds of Maryland and the District of Columbia,” N...

Authors

Frank B. McGilvrey

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

January 1, 1966

The status of the osprey in Cape May County, New Jersey, between 1939 and 1963 The status of the osprey in Cape May County, New Jersey, between 1939 and 1963

Comparison is made of the population of ospreys in Cape May County, N.J., in the late 1930's with that in 1963, and with a population of these birds at Tilghman Island, Maryland. Production of young per nest in the 1930's compares favorably with the production of young in the populations examined in 1963. It is suggested, based on historical evidence, that a decline in the numbers of...

Authors

F. C. Schmid

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

January 1, 1966

Some blood chemistry values for five Chesapeake Bay area fishes Some blood chemistry values for five Chesapeake Bay area fishes

Blood samples from gizzard shad,largemouth bass, white perch, pumpkinseed, and toadfish were analyzed for hemoglobin, total plasma protein, total plasma cholesterol, and ion concentrations of plasma sodium, potassium, and chloride. The hemoglobin concentration and total plasma cholesterol found in a given species seem to have positive correlation with the customary activity level of that...

Authors

J. B. Hunn, P.F. Robinson

Ecosystems Mission Area, Upper Midwest Environmental Sciences Center, Chesapeake Bay Activities

January 1, 1965

Early-fall food and habitat of the sora in the Patuxent River Marsh, Maryland Early-fall food and habitat of the sora in the Patuxent River Marsh, Maryland

No abstract available.

Authors

B. Meanley

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

January 1, 1965

Tidal dispersal of herbicides to control Erasian watermilfoil in the Chesapeake Bay Tidal dispersal of herbicides to control Erasian watermilfoil in the Chesapeake Bay

No abstract available.

Authors

J.H. Steenis, Vernon D. Stotts

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

December 1, 1964

Pasteurella sp. from an epizootic of white perch (Roccus americanus) in Chesapeake Bay Tidewater areas Pasteurella sp. from an epizootic of white perch (Roccus americanus) in Chesapeake Bay Tidewater areas

No abstract available.

Authors

S. F. Snieszko, G. L. Bullock, E. Hollis, J.G. Boone

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

December 1, 1964

Pasteurella sp. from an epizootic of white perch (Roccus americanus) in Chesapeake Bay tidewater areas Pasteurella sp. from an epizootic of white perch (Roccus americanus) in Chesapeake Bay tidewater areas

No abstract available.

Authors

S. F. Snieszko, G. L. Bullock, Edgar Hollis, J.G. Boone

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

January 1, 1963

Nesting ecology and reproductive rate of the red-winged blackbird in tidal marshes of the upper Chesapeake Bay region Nesting ecology and reproductive rate of the red-winged blackbird in tidal marshes of the upper Chesapeake Bay region

The nesting ecology and reproductive rate of the polygynous red-winged blackbird, Agelaius phoeniceus, were studied in the tidal marshes of Maryland during the period of 1958 through 1961. Sixteen nesting colonies were located in six major marsh communities of the Eastern Shore and were visited approximately twice a week from late April to mid-August. The average clutch size for 537...

Authors

B. Meanley, J.S. Webb

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

January 1, 1962