Estuarine Indicators
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Estuarine Indicators
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Author : Stephen A. Bortone
language : en
Publisher: CRC Press
Release Date : 2004-12-28
Estuarine Indicators written by Stephen A. Bortone and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-28 with Nature categories.
Acknowledging the present inability to determine objectively the status and trends among estuarine ecosystems, the environmental research community has recently stepped up efforts to develop and evaluate meaningful estuarine indicators. This goal requires the effort of researchers from a broad spectrum of disciplines. In order to expedite this init
Ecological Indicators For Coastal And Estuarine Environmental Assessment
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Author : João Carlos Marques
language : en
Publisher: WIT Press
Release Date : 2009
Ecological Indicators For Coastal And Estuarine Environmental Assessment written by João Carlos Marques and has been published by WIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Technology & Engineering categories.
Ecological indicators address ecosystems structure and/or function and are commonly used to provide synoptic information about their state. Through quantitative representations of either the forces that steer ecosystems, responses to forcing functions, or of previous, current, or future states of an ecosystem, indicators are expected to reveal conditions and trends that will help in development planning and decision making processes. Ecological indicators combine numerous environmental factors in a single value, which may be useful in terms of management and in the development of ecological concepts, compliant with the general public's understanding. Nevertheless, their application is not exempt of criticisms, the first of which is that aggregation results in an oversimplification of the ecosystem under observation. Ecological indicators must therefore be handled following the right criteria and in situations that are consistent with its intended use and scope; otherwise they may drive to confusing interpretations of data.
Environmental Indicators For National State Of The Environment Reporting Estuaries And The Sea
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Author : Trevor J. Ward
language : en
Publisher:
Release Date : 1998
Environmental Indicators For National State Of The Environment Reporting Estuaries And The Sea written by Trevor J. Ward and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Electronic books categories.
An Initial Assessment Of Estuarine Geomorphic Habitats As Indicators Of Coastal Waterway Health
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Author :
language : en
Publisher:
Release Date : 2006
An Initial Assessment Of Estuarine Geomorphic Habitats As Indicators Of Coastal Waterway Health written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Environmental mapping categories.
Ecological Indicators In Coastal And Estuarine Environmental Quality Assessment A User Friendly Guide For Practitioners
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Author : Fuensanta Salas
language : en
Publisher: Imprensa da Universidade de Coimbra / Coimbra University Press
Release Date : 2006-12-01
Ecological Indicators In Coastal And Estuarine Environmental Quality Assessment A User Friendly Guide For Practitioners written by Fuensanta Salas and has been published by Imprensa da Universidade de Coimbra / Coimbra University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-01 with categories.
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.
Estuarine Coastal And Marine
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Author : Richard Mount
language : en
Publisher:
Release Date : 2008
Estuarine Coastal And Marine written by Richard Mount and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Coastal ecology categories.
Bio Sedimentary Indicators For Estuaries
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Author : Jean-Paul Ducrotoy
language : en
Publisher:
Release Date : 2011
Bio Sedimentary Indicators For Estuaries written by Jean-Paul Ducrotoy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
The rational management of the marine environment relies on the measurement of selected attributes and the detection of changes in carefully chosen parameters as the result of human activities. Following that detection, integrated management relies on actions being predefined in order to minimise harmful effects. This book undertakes an analysis of the indicators available for detecting change in the sedimentary part of the marine system in coastal and estuarine areas. It covers intertidal and subtidal habitats. As such, it includes indicators on sedimentary conditions and biological indicators based on benthic plants, seaweeds and invertebrates. Organisms and populations are considered as well as molecular biomarkers and sublethal indicators, as well as biophysical indicators. As studies of the habitat level lead into functional ecology then the book further deals with integrated and multicriteria approaches. An assessment of the applicability of existing indicators helps to identify where modifications might be appropriate and to identify significant gaps. It appears that most of the available indicators are rather well suited to showing the structure of systems (and in the case of the European Water Framework Directive have been encouraged to be so by the wording in the Directive). However, their applicability to enclosed estuarine ecosystems remains problematic as most of such indicators were designed in relation to organic matter enrichment. Very few of them are adequate to show the functioning of transitional ecosystems. This is particularly important given the high reliance by ecological objectives and contributory objectives for the marine environment on functional aspects. This book was written as an attempt to clarify the current situation with regard to the use of indicators in environmental management of estuaries and coasts. As such, it will be of interest to any researcher involved in monitoring coastal environments. More specifically, it targets students, practitioners and policy makers who often find themselves overwhelmed by the huge amount of information to be dealt with when approaching the subject. It is not intended as a comprehensive review of all indicators, but more as a compendium to be used as a guide when confronted to concrete cases. Text boxes and tables present essential topics in a focused and synthetic way. The text structure and the support of a robust bibliography will also help students to organise any in-depth study of the topic.
Evaluation Guidelines For Ecological Indicators
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Author : Laura E. Jackson
language : en
Publisher:
Release Date : 2000
Evaluation Guidelines For Ecological Indicators written by Laura E. Jackson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Ecological risk assessment categories.
Monitoring In Coastal Environments Using Foraminifera And Thecamoebian Indicators
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Author : David B. Scott
language : en
Publisher: Cambridge University Press
Release Date : 2007-02-22
Monitoring In Coastal Environments Using Foraminifera And Thecamoebian Indicators written by David B. Scott and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-22 with Science categories.
Emphasizes the methodological approaches being used for environmental applications of foraminifera and thecamoebians. Its main audience will include researchers and consultants, but it will also serve as a supplementary text for graduate students in courses that deal with environmental monitoring and assessment.
Hydrological Changes And Estuarine Dynamics
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Author : Paul Montagna
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-10-31
Hydrological Changes And Estuarine Dynamics written by Paul Montagna and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-31 with Science categories.
Water development projects have altered the environmental flow landscapes where dams and diversions have been built, and this could have effects on coastal resources, particularly in estuaries. Water is an important human resource and water needs grow as populations grow. However, freshwater inflow to the coast is fundamental to the functioning of estuaries. Can we have stable, secure, and sufficient water resources for people and still protect estuarine health? Estuaries are the most productive environments on Earth, and this is in part due to freshwater inflow, which dilutes marine water, and transports nutrients and sediments to the coast. Estuaries are characterized by salinity and nutrient gradients, which are important in regulating many biological processes. As water is diverted for human consumption, it is common for many environmental problems to appear. While many countries have water quality programs, few are dealing with water quantity alterations. The first step is to define marine resources to protect, and the water quality conditions those resources need to thrive. The second step is to determine the flow regimes needed to maintain the desired water quality conditions. Finally, many regions are using adaptive management programs to manage freshwater resources. These programs set goals to protect ecosystem resources, identify indicators, and monitor the indicators over time to ensure that the goals are appropriate and resources are protected. Case studies demonstrate that monitoring and research can determine the ecological and socio-economical impacts of altered freshwater inflows, and stakeholders and managers can make well-informed decisions to manage freshwater inflows to local coasts wisely.