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Author: Gehan Mohamed El Zokm
Publisher: Springer Nature
ISBN: 3031292030
Category : Heavy metals
Languages : en
Pages : 118
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Book Description
The goal of this one-of-a-kind book was to provide a critical and in-depth understanding of various AVS-SEM models as predictors for assessing the ecological impact of heavy metals (particularly dibasic cations; Zn, Cd, Ni, Cu, and Pb) on aquatic environments, including the theories underlying these models, descriptive equations, modes of action, methodology, efficiency, applicability, and statistical approaches, as well as comparison with other pollution assessment techniques in the aquatic environments. Metals in interstitial water can be reduced in sediments that co-precipitate with iron (Fe) and manganese (Mn) in FeS or MnS minerals, as well as replace them. This book outlines a system that can be used to track heavy metal contamination in countries with coastal regions that extend over water bodies that are subjected to pollution sources, such as the Mediterranean Basin countries. Moreover, this book will be of great interest to academics, professionals, practitioners, post-graduate students (M.Sc. and Ph.D.), and undergraduates because it gives a clear overview of heavy metal assessment for people interested in environmental studies focusing on the marine environment. It also provides decision-makers with a realistic perspective of the environmental file, allowing them to address environmental issues and directing stockholders to safer locations for environmental activity. From a future perspective, management is advised to overcome the difficulties within that technique, such as accurate handling procedures and different approaches to sampling onshore and offshore. Sequential leaching strategies, especially geochemical fractionation analysis, and knowledge of the interactions and significance of AVS in the marine sector, especially toxicity tests (bioassay) are recommended.
Author: Gehan Mohamed El Zokm
Publisher: Springer Nature
ISBN: 3031292030
Category : Heavy metals
Languages : en
Pages : 118
Get Book Here
Book Description
The goal of this one-of-a-kind book was to provide a critical and in-depth understanding of various AVS-SEM models as predictors for assessing the ecological impact of heavy metals (particularly dibasic cations; Zn, Cd, Ni, Cu, and Pb) on aquatic environments, including the theories underlying these models, descriptive equations, modes of action, methodology, efficiency, applicability, and statistical approaches, as well as comparison with other pollution assessment techniques in the aquatic environments. Metals in interstitial water can be reduced in sediments that co-precipitate with iron (Fe) and manganese (Mn) in FeS or MnS minerals, as well as replace them. This book outlines a system that can be used to track heavy metal contamination in countries with coastal regions that extend over water bodies that are subjected to pollution sources, such as the Mediterranean Basin countries. Moreover, this book will be of great interest to academics, professionals, practitioners, post-graduate students (M.Sc. and Ph.D.), and undergraduates because it gives a clear overview of heavy metal assessment for people interested in environmental studies focusing on the marine environment. It also provides decision-makers with a realistic perspective of the environmental file, allowing them to address environmental issues and directing stockholders to safer locations for environmental activity. From a future perspective, management is advised to overcome the difficulties within that technique, such as accurate handling procedures and different approaches to sampling onshore and offshore. Sequential leaching strategies, especially geochemical fractionation analysis, and knowledge of the interactions and significance of AVS in the marine sector, especially toxicity tests (bioassay) are recommended.
Author: I. Ethem Gönenç
Publisher: Springer Science & Business Media
ISBN: 1402085583
Category : Technology & Engineering
Languages : en
Pages : 521
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Book Description
John Wesley Powell, U.S. scientist and geographer, put it best when he said that a watershed is: ...that area of land, a bounded hydrologic system, within which all living things are inextricably linked by their common water course and where, as humans settled, simple logic demanded that they become part of a community. Watersheds come in all shapes and sizes. They cross sectorial boundaries (e.g. county, state/province, and country). No matter where you are, you are in a watershed! World-wide, watersheds supply drinking water, provide r- reation and respite, and sustain life. Watersheds are rich in natural capital, producing goods (agriculture and fisheries products) and services (industry and technology) for broad geographic areas. In many countries, at the base of watersheds where tributaries empty into large water-bodies (e.g. estuaries, seas, oceans) are centers of society and are typically densely populated areas. These areas serve as concentrated centers of the socio-economic system. They also are centers of domestic and international trade, tourism, and c- merce as well as the center of governments (capitals) where local, regional and national legislatures are located. As we all live in a watershed, our individual actions can directly affect it. The cumulative effects of all the individual actions of everyone within a watershed may be, and often are devastating to the quality of water resources and affect the health of living things including humans. Therefore, watershed systems are highly subject to threat to human security and peace.
Author: Andrea Belgrano
Publisher: Oxford University Press, USA
ISBN: 0198564821
Category : Science
Languages : en
Pages : 274
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Book Description
'Aquatic Food Webs' provides a current synthesis of theoretical and empirical food web research. The textbook is suitable for graduate level students as well as professional researchers in community, ecosystem, and theoretical ecology, in aquatic ecology, and in conservation biology.
Author:
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 56
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Book Description
Author:
Publisher:
ISBN:
Category : Biological specimens
Languages : en
Pages : 52
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Book Description
Author:
Publisher:
ISBN:
Category : Marine pollution
Languages : en
Pages : 40
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Book Description
Author: J. Emmett Duffy
Publisher: Princeton University Press
ISBN: 0691190534
Category : Science
Languages : en
Pages : 465
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Book Description
A comprehensive introduction to ocean ecology and a new way of thinking about ocean life Marine ecology is more interdisciplinary, broader in scope, and more intimately linked to human activities than ever before. Ocean Ecology provides advanced undergraduates, graduate students, and practitioners with an integrated approach to marine ecology that reflects these new scientific realities, and prepares students for the challenges of studying and managing the ocean as a complex adaptive system. This authoritative and accessible textbook advances a framework based on interactions among four major features of marine ecosystems—geomorphology, the abiotic environment, biodiversity, and biogeochemistry—and shows how life is a driver of environmental conditions and dynamics. Ocean Ecology explains the ecological processes that link organismal to ecosystem scales and that shape the major types of ocean ecosystems, historically and in today's Anthropocene world. Provides an integrated new approach to understanding and managing the ocean Shows how biological diversity is the heart of functioning ecosystems Spans genes to earth systems, surface to seafloor, and estuary to ocean gyre Links species composition, trait distribution, and other ecological structures to the functioning of ecosystems Explains how fishing, fossil fuel combustion, industrial fertilizer use, and other human impacts are transforming the Anthropocene ocean An essential textbook for students and an invaluable resource for practitioners
Author: Fuensanta Salas
Publisher: Imprensa da Universidade de Coimbra / Coimbra University Press
ISBN: 9892603516
Category :
Languages : en
Pages : 168
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Book Description
Experience demonstrates that none of the available measures regarding biological effects of pollution can be considered ideal, which is due to the complexity inherent in assessing the environmental quality of a system. In fact, it is always preferable to combine a suite of indices providing complementary information. This book aims at helping researchers and students, as well as managers and authorities of coastal areas in selecting the most suitable ecological indicators for each case, taking into account the type of disturbance they want to assess and the data available to do it. A user friendly guide is proposed, accounting different theoretical approaches and discussing the results of its application in different geographical areas. Recommendations are provided regarding the most adequate application of different indices, illustrating for instance in what situations their use is recommendable, or on the contrary not advisable, depending on the characteristics of the disturbance, the type of data, or the level of taxonomic identification of the organisms.
Author: Dilip Kumar Jha
Publisher: Frontiers Media SA
ISBN: 2832517269
Category : Science
Languages : en
Pages : 323
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Book Description
Author: Wen-Xiong Wang
Publisher: Springer Nature
ISBN: 3662618346
Category : Science
Languages : en
Pages : 130
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Book Description
The Pearl River Estuary (PRE) is the Western name for a very large estuary in southern China that is currently home to an industrial metropolis of staggering size, and one that is rapidly evolving. The Chinese name for the Pearl River is Zhujiang. Guangzhou lies at the head of the estuary, and Macau and Hong Kong are on the western and eastern sides, respectively, of the wide opening of the estuary to the South China Sea. The new cities of Zhuhai and Shenzhen lie immediately north of Macau and Hong Kong, respectively. The recent establishment of the Greater Bay Area (GBA), which covers the majority of the Pearl River Delta area, with a total population of over 70 million, will certainly put the PRE under strict environmental scrutiny. The PRE system itself will provide a model system for environmental scientists owing to its major anthropogenic perturbation and influences, as well as the highly dynamic nature of the estuary. This book addresses the major environmental concerns regarding this estuary, contaminants and other pollutants, e.g. toxic metals, organic contaminants and emerging compounds. Questions addressed here include: What are the sources of the contaminants? What have the environmental consequences of these contaminants been for the estuary? What will the future bring? The research presented here on the Pearl River Estuary offers a wealth of insights for other major contaminated estuaries around the world.
