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Science to Improve Management of the Gulf of Mexico Hypoxic Zone: A Collaborative Approach

Science to Improve Management of the Gulf of Mexico Hypoxic Zone: A Collaborative Approach
Author:
Publisher:
Total Pages: 5
Release: 2010
Genre:
ISBN:

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Management of the northern Gulf of Mexico large hypoxic zone is driven primarily by the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force ("Hypoxia Task Force") Action Plan. Both the 2001 and revised 2008 Action Plans called for a reduction in the average areal extent of the hypoxic zone to 5000 km2 by the year 2015, less than 1/3 the current typical annual maximum area. To achieve this goal, watershed nutrient loading reductions of 45% total nitrogen and 45% total phosphorus were estimated needs. The science to inform these targets and develop hypoxia mitigation strategies was derived from predictive models based on the quantitative relationship between causative factors (e.g. nutrient loading, stratification) and extent of hypoxia, long-term monitoring, and forecast models to test the validity of predicted relationships. This science provided the foundation for an evaluation by an Environmental Protection Agency Science Advisory Board Hypoxia Advisory Panel which served to update and synthesize research efforts on the causes and consequences of the hypoxic zone and assess progress in implementing nutrient reduction measures in the Mississippi River watershed. This information subsequently led to the adoption of the 2008 Action Plan by the Hypoxia Task Force.


Hypoxia in the Northern Gulf of Mexico

Hypoxia in the Northern Gulf of Mexico
Author: Virginia H. Dale
Publisher: Springer Science & Business Media
Total Pages: 334
Release: 2010-04-12
Genre: Science
ISBN: 0387896864

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Since 1985, scientists have been documenting a hypoxic zone in the Gulf of Mexico each year. The hypoxic zone, an area of low dissolved oxygen that cannot s- port marine life, generally manifests itself in the spring. Since marine species either die or ee the hypoxic zone, the spread of hypoxia reduces the available habitat for marine species, which are important for the ecosystem as well as commercial and recreational shing in the Gulf. Since 2001, the hypoxic zone has averaged 2 1 16,500 km during its peak summer months , an area slightly larger than the state 2 2 of Connecticut, and ranged from a low of 8,500 km to a high of 22,000 km . To address the hypoxia problem, the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force (or Task Force) was formed to bring together represen- tives from federal agencies, states, and tribes to consider options for responding to hypoxia. The Task Force asked the White House Of ce of Science and Technology Policy to conduct a scienti c assessment of the causes and consequences of Gulf hypoxia through its Committee on Environment and Natural Resources (CENR).


Hypoxia in the Northern Gulf of Mexico

Hypoxia in the Northern Gulf of Mexico
Author: Benjamin M. Salas
Publisher:
Total Pages: 0
Release: 2011
Genre: Biomass energy
ISBN: 9781612093185

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Since 1985, scientists have been documenting a hypoxic zone, an area of low dissolved oxygen that cannot support marine life, in the Gulf of Mexico each year. Since marine species either die or flee the hypoxic zone, the spread of hypoxia reduces the available habitat for marine species, which are important for the ecosystem as well as commercial and recreational fishing in the Gulf. To address the hypoxia problem, the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force was formed to bring together representatives from federal agencies, states and tribes to consider options for responding to hypoxia. This book summarises major findings and recommendations with regard to hypoxia in the Northern Gulf of Mexico.


Nutrient Control Actions for Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico

Nutrient Control Actions for Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico
Author: National Research Council
Publisher: National Academies Press
Total Pages: 90
Release: 2009-08-13
Genre: Nature
ISBN: 030913000X

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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.


A Science Strategy to Support Management Decisions Related to Hypoxia in the Northern Gulf of Mexico and Excess Nutrients in the Mississippi River Basin

A Science Strategy to Support Management Decisions Related to Hypoxia in the Northern Gulf of Mexico and Excess Nutrients in the Mississippi River Basin
Author: Mississippi River/Gulf of Mexico Watershed Nutrient Task Force. Monitoring, Modeling, and Research Workgroup
Publisher: Geological Survey (USGS)
Total Pages: 64
Release: 2004
Genre: Electronic government information
ISBN: 9780607990355

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An Approach for Assessing U. S. Gulf Coast Ecosystem Restoration

An Approach for Assessing U. S. Gulf Coast Ecosystem Restoration
Author: National Academies of Sciences, Engineering, and Medicine
Publisher:
Total Pages: 258
Release: 2022-12-31
Genre:
ISBN: 9780309263399

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Valued for its ecological richness and economic value, the U.S. Gulf of Mexico is under substantial pressure from human activities. The Deepwater Horizon platform explosion and oil spill significantly damaged Gulf ecosystems and led to the largest ecological restoration investment in history. The unprecedented number and diversity of restoration activities provide valuable information for future restoration efforts, but assessment efforts are hampered by many factors, including the need to evaluate the interaction of multiple stressors and consider long-term environmental trends such as sea level rise, increasing hurricane intensity, and rising water temperatures. This report offers a comprehensive approach to assess restoration activities beyond the project scale in the face of a changing environment. A main component of this approach is using different types of scientific evidence to develop "multiple lines of evidence" to evaluate restoration efforts at regional scales and beyond, especially for projects that may be mutually reinforcing (synergistic) or in conflict (antagonistic). Because Gulf of Mexico ecosystems cross political boundaries, increased coordination and collaboration is needed, especially to develop standardized data collection, analysis, synthesis, and reporting. With these improvements, program-level adaptive management approaches can be used more effectively to assess restoration strategies against the backdrop of long-term environmental trends.


Harmful algal blooms and hypoxia

Harmful algal blooms and hypoxia
Author: United States. Congress. House. Committee on Science. Subcommittee on Environment, Technology, and Standards
Publisher:
Total Pages: 120
Release: 2003
Genre: Medical
ISBN:

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Harmful Algal Blooms and Hypoxia

Harmful Algal Blooms and Hypoxia
Author: United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Energy and Environment
Publisher:
Total Pages: 94
Release: 2009
Genre: Medical
ISBN:

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