Nutrient Pollution In Coastal Waters

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Clean Coastal Waters

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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2000-07-17

Clean Coastal Waters written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-07-17 with Science categories.

Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.

Nutrient Pollution In Coastal Waters

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Author : Robert Howarth
language : en
Publisher:
Release Date : 2003

Nutrient Pollution In Coastal Waters written by Robert Howarth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Coastal ecology categories.

Nutrients And Eutrophication In Estuaries And Coastal Waters

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Author : Emma Orive
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11

Nutrients And Eutrophication In Estuaries And Coastal Waters written by Emma Orive and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.

This volume focuses on the nutrient and organic matter inputs in estuaries and other coastal ecosystems, their effects on geochemistry and community structure and possibilities for recovery of the systems to a trophic state that is beneficial for man and nature. The book provides many examples of the effects of the enhanced supply of nutrients and organic matter on the chemical features of the water and on the structure, metabolism and trophic pathways of the biological communities. Also included are several case studies providing considerable insight into the response of the different coastal ecosystems to long term changes in the trophic state of the water. Current knowledge on modeling as a tool to manage the trophic state of the coastal ecosystems is also dealt with, making this book one of interests to scientist and students as well as managers.

A Systems Approach To Managing Nutrient Pollution In Cape Cod S Coastal Waters

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Author : Adem Delibas
language : en
Publisher:
Release Date : 2013

A Systems Approach To Managing Nutrient Pollution In Cape Cod S Coastal Waters written by Adem Delibas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Pressing problems are facing the coastal waters of the world due to the growing human activity. Increasing population and economic development around coastal areas have left many embayments throughout the world severely impaired. Excessive nutrient enrichment in water bodies, also known as nutrient pollution, is one of the leading impairments in coastal waters. Algal blooms, dead zones, and fish kills are spreading because of the nutrient pollution. This thesis presents a systems analysis of the nutrient pollution problem in the context of Cape Cod, Massachusetts, where the continuous degradation in coastal waters is considered as one of the greatest threats to the region's environmental and economic future. It proposes a system dynamics model created with a diverse stakeholder team to uncover the underlying system structure that has created the degradation in Cape Cod's coastal waters since 1960s. An important goal of this work was to support the development of a regional water quality management plan on Cape Cod by creating a shared understanding of the nutrient pollution problem across a wide range of stakeholders. Therefore, the proposed model was created with direct contributions of a diverse stakeholder team including representatives from residents, local municipalities, regional authorities, the state government, and the U.S Environmental Protection Agency. In addition to identifying the causal structure of the system through a set of qualitative diagrams, this thesis also proposes a formal simulation model and presents results of an in-depth policy analysis exploring how the degradation in Cape Cod's coastal waters could evolve under different future scenarios. Both the model-building process and the simulation experiments reveal several critical insights, including nonlinearity of the system behavior, delay in the system's response to interventions, and the importance of timely actions.

Nutrient Pollution Of Coastal Rivers Bays And Seas

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Author :
language : en
Publisher:
Release Date : 2000

Nutrient Pollution Of Coastal Rivers Bays And Seas written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Coastal ecology categories.

Eutrophication In Coastal Ecosystems

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Author : Jesper H. Andersen
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-05-30

Eutrophication In Coastal Ecosystems written by Jesper H. Andersen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-05-30 with Science categories.

Coastal eutrophication has been and still remains an important issue for the scientific community. Despite many efforts to mitigate coastal eutrophication, the problems associated with eutrophication are still far from being solved. This book focusses on the most recent scientific results in relation to specific eutrophication issues, e.g. definition(s) and causes; nutrient loads, cycling and limitation; reference conditions, primary effects and secondary effects; trend reversal (oligotrophication), as well as links to other pressures (climate change and top/down control). It also focusses on monitoring and modelling of coastal eutrophication, and adaptive and science-based nutrient management strategies. The book is based on selected papers from the Second International Symposium on Research and Management of Eutrophication in Coastal Ecosystems, held 20-23 June 2006 in Nyborg, Denmark.

Nutrient Control Actions For Improving Water Quality In The Mississippi River Basin And Northern Gulf Of Mexico

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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2009-08-13

Nutrient Control Actions For Improving Water Quality In The Mississippi River Basin And Northern Gulf Of Mexico written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08-13 with Nature categories.

A large area of coastal waters in the northern Gulf of Mexico experiences seasonal conditions of low levels of dissolved oxygen, a condition known as hypoxia. Excess discharge of nutrients into the Gulf of Mexico from the Mississippi and Atchafalaya rivers causes nutrient overenrichment in the gulf's coastal waters and stimulates the growth of large algae blooms. When these algae die, the process of decomposition depletes dissolved oxygen from the water column and creates hypoxic conditions. In considering how to implement provisions of the Clean Water Act to strengthen nutrient reduction objectives across the Mississippi River basin, the U.S. Environmental Protection Agency (EPA) requested advice from the National Research Council. This book represents the results of the committee's investigations and deliberations, and recommends that the EPA and U.S. Department of Agriculture should jointly establish a Nutrient Control Implementation Initiative to learn more about the effectiveness of actions meant to improve water quality throughout the Mississippi River basin and into the northern Gulf of Mexico. Other recommendations include how to move forward on the larger process of allocating nutrient loading caps-which entails delegating responsibilities for reducing nutrient pollutants such as nitrogen and phosphorus-across the basin.

Flux And Sources Of Nutrients In The Mississippi Atchafalaya River Basin

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Author :
language : en
Publisher:
Release Date : 1999

Flux And Sources Of Nutrients In The Mississippi Atchafalaya River Basin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Marine eutrophication categories.

Eutrophication In Europe S Coastal Waters

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Author : Gunni Ærtebjerg
language : en
Publisher:
Release Date : 2001

Eutrophication In Europe S Coastal Waters written by Gunni Ærtebjerg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Coasts categories.

Recoge : 1. Summary - 2. Introduction - 3. The seas of Europe - 4. Spatial and temporal coverage of data - 5. Nutrient loads (pressures) - 6. Present trade of eutrophication - 7. Impact of eutrophication and responses - 8. Trophical index for marine systems (TRIX) - 9. Contribution from remote sensing to support the evaluation of eutrophication in marine and coastal waters - 10. Conclusions and recommendations - 11. References - 12. Annex 1: Maps showing levels of nutrients, clorophylla and oxygen along the coasts of Europe.

Managing Wastewater In Coastal Urban Areas

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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1993-02-01

Managing Wastewater In Coastal Urban Areas written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-02-01 with Science categories.

Close to one-half of all Americans live in coastal counties. The resulting flood of wastewater, stormwater, and pollutants discharged into coastal waters is a major concern. This book offers a well-delineated approach to integrated coastal management beginning with wastewater and stormwater control. The committee presents an overview of current management practices and problems. The core of the volume is a detailed model for integrated coastal management, offering basic principles and methods, a direction for moving from general concerns to day-to-day activities, specific steps from goal setting through monitoring performance, and a base of scientific and technical information. Success stories from the Chesapeake and Santa Monica bays are included. The volume discusses potential barriers to integrated coastal management and how they may be overcome and suggests steps for introducing this concept into current programs and legislation. This practical volume will be important to anyone concerned about management of coastal waters: policymakers, resource and municipal managers, environmental professionals, concerned community groups, and researchers, as well as faculty and students in environmental studies.