Author: Publisher:
ISBN:
Category : Marine eutrophication
Languages : en
Pages : 152
Book Description
Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin
Author: Publisher:
ISBN:
Category : Marine eutrophication
Languages : en
Pages : 152
Book Description
Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin
Author: Publisher:
ISBN:
Category : Nutrient pollution of water
Languages : en
Pages : 130
Book Description
Changes in Streamflow and the Flux of Nutrients in the Mississippi-atchafalaya River Basin, USA, 1980-2007
Author: U.S. Department of the InteriorPublisher: CreateSpace
ISBN: 9781497478282
Category : Reference
Languages : en
Pages : 56
Book Description
Nutrients and freshwater delivered by the Mississippi and Atchafalaya Rivers drive algal production in the northern Gulf of Mexico, which eventually results in the widespread occurrence of hypoxic bottom waters along the Louisiana and Texas coast. Researchers have demonstrated a relation between the extent of the hypoxic zone and the magnitude of streamflow, nutrient fluxes, and nutrient concentrations in the Mississippi River, with springtime streamflows and fluxes being the most predictive. In 1999 the U.S. Geological Survey (USGS) estimated the flux of nitrogen, phosphorus, and silica at selected sites in the Mississippi Basin and to the Gulf of Mexico for 1980–1996. These flux estimates provided the baseline information used by the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force to develop an Action Plan for reducing hypoxia in the northern Gulf of Mexico. The primary goal of the Action Plan was to achieve a reduction in the size (areal extent) of the hypoxic zone from an average of approximately 14,000 square kilometers in 1996–2000 to a 5-year moving average of less than 5,000 square kilometers by 2015.
Nutrient Control Actions for Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309141788
Category : Nature
Languages : en
Pages : 91
Book Description
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.
Nutrients in the Upper Mississippi River
Author: Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 6
Book Description
Nitrogen in the Mississippi Basin
Author: Report for the Integrated Assessment on Hypoxia in the Gulf of Mexico
Author: Nancy N. RabalaisPublisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages :
Book Description
Integrated Assessment of Hypoxia in the Northern Gulf of Mexico
Author: Nutrient Sources Within the Upper Mississippi River Basin, Minnesota and Wisconsin, 1991-93
Author: Sharon E. KroeningPublisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 4
Book Description
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 WorkgroupPublisher: Geological Survey (USGS)
ISBN:
Category : Medical
Languages : en
Pages : 64
Book Description