Author: Charles Clarence Morris
Publisher: Springer Science & Business Media
ISBN: 9400741286
Category : Business & Economics
Languages : en
Pages : 72
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Book Description
The first publication to provide strategies for managing nutrients in the context of changing environmental biology, this text describes in detail a case study resulting from a large-scale research project in the Corn Belt and Great Plains region of America.
Author: Charles Clarence Morris
Publisher: Springer Science & Business Media
ISBN: 9400741294
Category : Medical
Languages : en
Pages : 72
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Book Description
Nutrient Indicator Models for Determining Biologically Relevant Levels: A case study based on the Corn Belt and Northern Great Plain Nutrient Ecoregion is the first book to provide answers to the management of nutrients based on changes in biological communities. The text describes a case study that is the result of a large scale project in the Corn Belt and Great Plains Nutrient Ecoregion. This study is the first to identify relationships between fish assemblages and nutrient concentrations by Nitrogen species. Species optima based on sensitivity and tolerance to nutrients is modeled. Nutrient Biotic indices calibrated for application are based on the results of years of biological indicator development. Test response intervals and Shift response intervals are formulated and validated against relevant biological assemblage shifts. This case study is the first to suggest recommended values for the nitrogen and phosphorus cycle with identifiable shifts caused in biological assemblages. This will provide watershed and environmental managers with the information needed to manage the inputs into the world’s dead zones.
Author:
Publisher:
ISBN:
Category : Eutrophication
Languages : en
Pages : 258
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Author: Mark D. Munn
Publisher: United States Department of the Interior
ISBN: 9781411341838
Category : Nature
Languages : en
Pages : 92
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"National Water-Quality Assessment Project."
Author:
Publisher: Academic Press
ISBN: 0080878857
Category : Science
Languages : en
Pages : 4604
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Book Description
The study of estuaries and coasts has seen enormous growth in recent years, since changes in these areas have a large effect on the food chain, as well as on the physics and chemistry of the ocean. As the coasts and river banks around the world become more densely populated, the pressure on these ecosystems intensifies, putting a new focus on environmental, socio-economic and policy issues. Written by a team of international expert scientists, under the guidance of Chief Editors Eric Wolanski and Donald McClusky, the Treatise on Estuarine and Coastal Science, Ten Volume Set examines topics in depth, and aims to provide a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Most up-to-date reference for system-based coastal and estuarine science and management, from the inland watershed to the ocean shelf Chief editors have assembled a world-class team of volume editors and contributing authors Approach focuses on the physical, biological, chemistry, ecosystem, human, ecological and economics processes, to show how to best use multidisciplinary science to ensure earth's sustainability Provides a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Features up-to-date chapters covering a full range of topics
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Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 704
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Author: Giuseppe Lembo
Publisher: Food & Agriculture Org.
ISBN: 9789251056226
Category : Business & Economics
Languages : en
Pages : 100
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Book Description
This workshop stressed that the concept of reference points (RPs) needs to be closely connected to the management objective of concerned fisheries, taking into account various parameters such as maximum sustainable yield, economic and social benchmark and environment concern. Participants stressed the need to define different RPs for each dimension of management or to identify a single RP aimed at ensuring the sustainability of the system, thereby no longer limited to biological aspects. A review of possible approaches to setting RPs and indicators for Black Sea fisheries emphasized the dynamic nature of recent ecosystem changes. The traffic light approach was illustrated as a means of following dynamic changes and gaining a broad perspective on events at the ecosystem level. The workshop outlined the main RPs obtained by applying the bio-economic optimization models of effort and effort-catch as derived from the theory of population dynamics.
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Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 704
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Author:
Publisher:
ISBN:
Category : Nutrient pollution of water
Languages : en
Pages : 140
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Book Description
Author:
Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 732
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