By Committee on the Causes and Management of Eutrophication, Ocean Studies Board, Water Science and Technology Board, National Research Council, Committee on the Causes, Management of Eutrophication
Environmental difficulties in coastal ecosystems can occasionally be attributed to extra food flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment may end up in poisonous algal blooms, shellfish poisoning, coral reef destruction, and different damaging results. All U.S. coasts convey indicators of nutrient over-enrichment, and scientists are expecting worsening difficulties within the years forward. "Clean Coastal Waters" explains technical facets of nutrient over-enrichment and proposes either speedy neighborhood motion through coastal managers and a longer-term nationwide approach incorporating coverage layout, class of affected websites, legislations and legislation, coordination, and communication.Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and different situations, the e-book explains how foodstuff paintings within the surroundings, why nitrogen is necessary, how enrichment becomes over-enrichment, and why a few environments are specifically weak. fiscal in addition to ecological affects are tested. In addressing abatement thoughts, the committee discusses the significance of tracking websites, constructing invaluable versions of over-enrichment, and atmosphere water caliber pursuits. The e-book additionally stories voluntary courses, vital controls, tax incentives, and different coverage recommendations for lowering the movement of foodstuff from agricultural operations and different resources.
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Extra resources for Clean Coastal Waters: Understanding and Reducing the Effects of Nutrient Pollution
The sources of these nutrients include agricultural practices, wastewater treatment plants, urban runoff, and burning of fossil fuels. Human activities on land affect both the quantity and quality (including nutrient content) of freshwater delivered to coastal areas. Because these factors play such a role in eutrophication, any approach to understanding and reducing the impacts of nutrient over-enrichment must consider freshwater inflow and nutrient loading patterns. The extent and impacts of nutrient over-enrichment in coastal ecosystems are far-reaching: eutrophication-related oxygen-poor waters extend over an area as large as 20,000 km2 on the inner continental shelf of the northern Gulf of Mexico (Rabalais et al.
As society has increasingly populated the coasts, vacationed at the beaches, dammed the rivers feeding the beaches and coasts, harvested fish, disposed of waste, and used these areas for transportation, the deterioration of the coastal environment has become a critical issue. S. S. S. Bureau of the Census 1998). S. population lives in less than one fifth of its total area, and this pattern is expected to continue. For example, 17 of the 20 fastest growing counties are located Copyright © 2003 National Academy of Sciences.
Evaluations were made regarding the influence of natural and human related factors in the development of these conditions, estuarine use impairments, and how conditions might change in the next 20 years. Participants made recommendations for management, research, and monitoring to address problems and to prevent worsening conditions. In 1999, NOAA published its synthesis report, The National Estuarine Eutrophication Assessment (Bricker et al. 1999), which provides a comprehensive summary of the assessment results.