Slow-moving ground water slows down water-quality improvements in Chesapeake Bay
Ground water supplies about half of the water and nitrogen to streams in the Chesapeake Bay watershed and is therefore an important pathway for nitrogen to reach the bay, according to a recent U.S. Geological Survey (USGS) study. Too many nutrients, most of all nitrogen, are the principal cause for poor water-quality conditions in the Chesapeake Bay. ... The ground water moving to streams in the...Survey of Chesapeake Bay watershed residents may save the bay
Blacksburg, Va. -- With the population of the Chesapeake Bay watershed projected to increase by more than one million people during the next 15 years, efforts to educate each citizen about their impact on the bay is becoming more critical. To address this issue, the Conservation Management Institute of Virginia Tech conducted a survey of the current residents of the bay watershed as part of an ef...Forecasting jellyfish in Chesapeake Bay
WASHINGTON - Before planning your next beach outing on Chesapeake Bay, you will of course check the weather forecast, and before long, you may be able to check the jellyfish forecast as well. A team of scientists at the National Oceanic and Atmospheric Administration and several universities has developed a prototype forecasting system that predicts the likelihood of sea nettles, a stinging jelly...Sea level rise threatens marshes in Chesapeake and Delaware Bays
WASHINGTON - Chesapeake and Delaware Bays, the two largest estuaries on the east coast of the United States, are losing marshland to rising sea levels caused by greenhouse warming. Research by University of Maryland scientists suggests that virtually all coastal marshes along these bays could disappear before 2100, if the sea level continues to rise at present rates or higher rates predicted by c...Farms and livestock leave their mark on the Chesapeake Bay
. . .WASHINGTON -- Pesticides, agricultural runoff and animal by-products are affecting fish, frogs and the overall state of the Chesapeake Bay. The latest findings will be presented at the 220th national meeting of the American Chemical Society, the world's largest scientific society. Among the highlights:. . Gian Gupta, Ph.D., of the University of Maryland Eastern Shore, will discuss the effec...DNA test solving Chesapeake's toxic mysteries
. As the summer heats up Chesapeake Bay waters, a new kind of test to detect toxic marine microbes is sharpening Maryland efforts to predict fish-killing Pfiesteria. The test also helps medical studies of illness associated with the microbe. . . David Oldach of the University of Maryland Biotechnology Institute (UMBI) reports that the test, applied to samples of mud or water, rapidly identifies...Chesapeake Bay watershed to benefit from new Landsat 7 land cover maps
."Smarter" land use planning and better estimates of polluted water runoff across the 64,000 square-mile (110,000-square-kilometer) Chesapeake Bay watershed are on the horizon thanks to new land cover maps being produced by the Mid-Atlantic Regional Earth Science Applications Center (RESAC) at the University of Maryland. These maps, generated by overlaying images from NASA's Landsat 7, will pro....From evidence of exotic nutria damage to wetlands to above average sea level rise, the Chesapeake Bay watershed is a complex and compelling scientific challenge. Methods and findings pertaining to these and other issues are presented by USGS scientists in poster sessions at the Chesapeake Bay Federally Supported Science Meeting, Patuxent Wildlife Research Center, Laurel, Md., Dec. 9-10, 1998. ....USGS Finds Fungus To Be A Cause Of Fish Lesions In Chesapeake
.Many of the fish lesions in Chesapeake Bay may be caused by a fungal infection.rather than Pfiesteria, a U.S. Geological Survey scientist reported recently at.the International Symposium on Aquatic Animal Health Conference in Baltimore. .While Pfiesteria remains the primary cause of fish kills in the Chesapeake,.North Carolina and other estuaries, a fungus seems to be primarily responsible.for....To lay the groundwork for future environmental policy governing Pfiesteria and.the Chesapeake Bay, the Ecological Society of America and the American.Institute of Biological Sciences will host the "Pfiesteria in Maryland" and."Chesapeake Bay Ecosystem" symposia at their joint annual meeting, held in.Baltimore, Maryland, on August 2-6, 1998. .Pfiesteria piscicida is a toxic dinoflagellate--alga...Chesapeake Bay Sediment : Home To Pfiesteria-Like Microbes
. .Analysis of Chesapeake Bay sediment cores collected by the U.S. Geological Survey and the University of Maryland Center for.Environmental and Estuarine Studies (CEES) indicates that some of the sediment samples dating back hundreds or thousands of years.contain Pfiesteria-like organisms and other microbes. Pfiesteria are microscopic, single-celled plants known as dinoflagellates that.have com...Nutrients, Ground Water, And The Chesapeake Bay - A Link With Pfiesteria?
. . Scientists from the U.S. Geological Survey (USGS) and other federal and state agencies involved in studies are working together to understand the delivery of nutrients from the land into the Bay and the relationship of nutrients to Pfiesteria-like organisms and ultimately fish health. Scientists suspect a link between high nutrient levels in water and the occurrence of algal blooms and...