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Nitrogen In The Marine Environment

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Nitrogen in the Marine Environment

Nitrogen in the Marine Environment Book
Author : Edward J. Carpenter,Douglas G. Capone
Publisher : Elsevier
Release : 2016-10-27
ISBN : 1483288293
Language : En, Es, Fr & De

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Book Description :

Nitrogen in the Marine Environment provides information pertinent to the many aspects of the nitrogen cycle. This book presents the advances in ocean productivity research, with emphasis on the role of microbes in nitrogen transformations with excursions to higher trophic levels. Organized into 24 chapters, this book begins with an overview of the abundance and distribution of the various forms of nitrogen in a number of estuaries. This text then provides a comparison of the nitrogen cycling of various ecosystems within the marine environment. Other chapters consider chemical distributions and methodology as an aid to those entering the field. This book discusses as well the enzymology of the initial steps of inorganic nitrogen assimilation. The final chapter deals with the philosophy and application of modeling as an investigative method in basic research on nitrogen dynamics in coastal and open-ocean marine environments. This book is a valuable resource for plant biochemists, microbiologists, aquatic ecologists, and bacteriologists.

Stressors in the Marine Environment

Stressors in the Marine Environment Book
Author : Reader in Ocean and Earth Science Martin Solan,Nia Whiteley,Senior Lecturer in the School of Biological Sciences Nia Whiteley
Publisher : Oxford University Press
Release : 2016-03-10
ISBN : 0198718829
Language : En, Es, Fr & De

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Book Description :

A multitude of direct and indirect human influences have significantly altered the environmental conditions, composition, and diversity of marine communities. However, understanding and predicting the combined impacts of single and multiple stressors is particularly challenging because observed ecological feedbacks are underpinned by a number of physiological and behavioural responses that reflect stressor type, severity, and timing. Furthermore, integration between the traditional domains of physiology and ecology tends to be fragmented and focused towards the effects of a specific stressor or set of circumstances. This novel volume summarises the latest research in the physiological and ecological responses of marine species to a comprehensive range of marine stressors, including chemical and noise pollution, ocean acidification, hypoxia, UV radiation, thermal and salinity stress before providing a perspective on future outcomes for some of the most pressing environmental issues facing society today. Stressors in the Marine Environment synthesises the combined expertise of a range of international researchers, providing a truly interdisciplinary and accessible summary of the field. It is essential reading for graduate students as well as professional researchers in environmental physiology, ecology, marine biology, conservation biology, and marine resource management. It will also be of particular relevance and use to the regulatory agencies and authorities tasked with managing the marine environment, including social scientists and environmental economists.

Reactive Nitrogen in the Environment

Reactive Nitrogen in the Environment Book
Author : Elizabeth Braun,United Nations Environment Programme. Division of Technology, Industry, and Economics,Woods Hole Research Center (Woods Hole, Mass.)
Publisher : UNEP/Earthprint
Release : 2007
ISBN : 9789280727838
Language : En, Es, Fr & De

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Book Description :

This non-technical report summarises the present scientific understanding of the major issues surrounding reactive nitrogen, and discusses the overarching environmental, human health and economic issues created by both excesses and deficiencies. The report provides case studies of effective policy implementation and reviews emerging policies to show how negative impacts associated with reactive nitrogen may be successfully addressed locally, nationally and regionally, given similar challenges, shared experiences and effective solutions.

Nitrogen Cycling in Coastal Marine Environments

Nitrogen Cycling in Coastal Marine Environments Book
Author : T. Henry Blackburn,Jan Sorensen
Publisher : John Wiley & Son Limited
Release : 1988-03-21
ISBN :
Language : En, Es, Fr & De

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Book Description :

Nitrogen discharge to the coastal environment has been increasing, posing the threat of accelerated eutrofication. Considerable research has been conducted in recent years to examine the impact of the nitrogen loading in coastal ecosystems. Based on proceedings from a SCOPE symposium held at the University of Aarhus in July of 1985, this volume covers a variety of up-to-date developments in research on nitrogen cycling in coastal marine environments. Topics include the role of nitrogen in algal productivity, regeneration of nutrients in the water column and the sediments, and the flow of nitrogen in coastal ecosystems.

Carbon and Nitrogen in the Terrestrial Environment

Carbon and Nitrogen in the Terrestrial Environment Book
Author : R. Nieder,D.K. Benbi
Publisher : Springer Science & Business Media
Release : 2008-05-30
ISBN : 1402084331
Language : En, Es, Fr & De

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Book Description :

Carbon and Nitrogen in the Terrestrial Environment is a comprehensive, interdisciplinary description of C and N fluxes between the atmosphere and the terrestrial biosphere; issues related to C and N management in different ecosystems and their implications for the environment and global climate change; and the approaches to mitigate emission of greenhouse gases. Drawing upon the most up-to-date books, journals, bulletins, reports, symposia proceedings and internet sources documenting interrelationships between different aspects of C and N cycling in the terrestrial environment, Carbon and Nitrogen in the Terrestrial Environment fills the gap left by most of the currently available books on C and N cycling. They either deal with a single element of an ecosystem, or are related to one or a few selected aspects like soil organic matter (SOM) and agricultural or forest management, emission of greenhouse gases, global climate change or modeling of SOM dynamics.

The State of the Marine Environment

The State of the Marine Environment Book
Author : IMO/FAO/UNESCO/WMO/WHO/IAEA/UN/UNEP Joint Group of Experts on the Scientific Aspects of Marine Pollution,United Nations Environment Programme
Publisher :
Release : 1990
ISBN :
Language : En, Es, Fr & De

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Book Description :

Marine Geochemistry

Marine Geochemistry Book
Author : Roy Chester
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 9401094888
Language : En, Es, Fr & De

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Book Description :

The past two or three decades have seen many important advances in our knowledge of the chemistry, physics, geology and biology of the oceans. It has also become apparent that in order to understand the manner in which the oceans work as a 'chemical system', it is necessary to use a framework which takes account of these interdisciplinary advances. Marine geochemistry has been written in response to the need for a single state-of-the-art text that addresses the subject of treating the sea water, sediment and rock reservoirs as a unified system. In taking this approach, a process-orientated framework has been adopted in which the emphasis is placed on identifying key processes operating within the 'unified ocean'. In doing this, particular attention has been paid to making the text accessible to students from all disciplines in such a way that future advances can readily be understood. I would like to express my thanks to those people who have helped with the writing of this volume. In particular, I wish to put on record my sincere appreciation of extremely helpful suggestions made by Professor John Edmond, FRS. In addition, I thank Dr S. Rowlatt for his comments on the sections covering the geochemistry of oceanic sediments, and Dr G. Wolff for his invaluable advice on the organic geochemistry of biota, water and sediments. It is a great pleasure to acknowledge the help of Dr K. J. T.

Dynamics and Characterization of Marine Organic Matter

Dynamics and Characterization of Marine Organic Matter Book
Author : N. Handa,E. Tanoue,T. Hama
Publisher : Springer Science & Business Media
Release : 2013-03-09
ISBN : 9401713197
Language : En, Es, Fr & De

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Book Description :

Over the past decade the scientific activities of the Joint Global Ocean Flux Study (JGOFS), which focuses on the role of the oceans in controlling climate change via the transport and storage of greenhouse gases and organic matter, have led to an increased interest in the study of the biogeochemistry of organic matter. There is also a growing interest in global climate fluctuations. This, and the need for a precise assessment of the dynamics of carbon and other bio-elements, has led to a demand for an improved understanding of biogeochemical processes and the chemical characteristics of both particulate and dissolved organic matter in the ocean. A large amount of proxy data has been published describing the changes of the oceanic environment, but qualitative and quantitative estimates of the vertical flux of (proxy) organic compounds have not been well documented. There is thus an urgent need to pursue this line of study and, to this end, this book starts with several papers dealing with the primary production of organic matter in the upper ocean. Thereafter, the book goes on to follow the flux and characterization of particulate organic matter, discussed in relation to the primary production in the euphotic zone and resuspension in the deep waters, including the vertical flux of proxy organic compounds. It goes on to explain the decomposition and transformation of organic matter in the ocean environment due to photochemical and biological agents, and the reactivity of bulk and specific organic compounds, including the air-sea interaction of biogenic gases. The 22 papers in the book reflect the interests of JGOFS and will thus serve as a valuable reference source for future biogeochemical investigations of both bio-elements and organic matter in seawater, clarifying the role of the ocean in global climate change.

Phosphorus in Fresh Water and the Marine Environment

Phosphorus in Fresh Water and the Marine Environment Book
Author : S. H. Jenkins,K. J. Ives
Publisher : Elsevier
Release : 2013-10-22
ISBN : 1483147266
Language : En, Es, Fr & De

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Book Description :

Phosphorus in Fresh Water and the Marine Environment investigates sources of phosphorus in fresh water and the marine environment and the problems it causes. The importance of phosphate precipitation as an inbuilt safety device against overproduction of algae in the oceans is discussed, along with the deposition and absorption of phosphates in sediments. The source of the phosphorus in lakes and rivers is considered in relation to population density and distribution. This book is comprised of 26 chapters and begins with a discussion on natural phosphate sources in relation to phosphate budgets, paying particular attention to eutrophication and soil erosion. The significance of man-made sources of phosphorus, such as fertilizers and farming, detergents and sewage, is then examined. Subsequent chapters focus on the role of phosphorus in the growth of plants and animals in rivers, lakes, and the sea; the hydrogeochemical cycling of phosphorus; phosphorus analysis in sea water; and safety evaluation of substitutes for phosphates in detergents. The microbiology of an activated sludge wastewater treatment plant chemically treated for phosphorus removal is also explored. This monograph will be of interest to policymakers concerned with water pollution control.

The State of the Marine Environment

The State of the Marine Environment Book
Author : Sherry Heileman
Publisher : United Nations Publications
Release : 2006
ISBN :
Language : En, Es, Fr & De

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Book Description :

This expert report provides a concise global overview of the developments over the last decade within the area of focus of the Global Programme of Action for the Protection of the Marine Environment from Land-based Activities (GPA). The report identifies that countries have made considerable progress in developing and implementing appropriate policy responses at national, regional and international levels. Nevertheless, progress over the last decade needs to be sustained and strengthened in response to the growing pressures, with special attention to implementation, enforcement and environmental governance. Publishing Agency: United Nations Environment Programme (UNEP).