Aquatic Ecosystems

Author: Stuart Findlay
Publisher: Academic Press
ISBN: 0122563719
Format: PDF, Docs
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Aquatic Ecosystems explains the interplay between various movements of matter and energy through ecosystems mediated by Dissolved Organic Matter. This book provides information on how much DOM there is in a particular aquatic ecosystem and where it originates. It explains whether the DOM composition varies from time to time and place to place. It also details how DOM becomes incorporated into microbial food webs, and gives a better, clarifying, understanding to its significance of DOM. Dissolved Organic Matter (called DOM) is incredibly important in all aquatic ecosystems. Although it might seem that logs and leaves are more important, in fact the DOM is more crucial because the DOM is in a form that is available for use by all the organisms living in the the water. Furthermore, DOM influences complex food webs by mediating the availability of aquatic nutrients, metals, salts and minerals. DOM also affects water clarity, which of course has alters the way animals and plants live and feed in the water. There are many ways to study DOM and this book focuses on several central questions. How much DOM is there in a particular aquatic ecosytem? Where does it come from? Does the composition of the DOM vary from time to time and place to palce? How does DOM become incorporated into microbial food webs, which are the basis of plant, invertebrate and vertebrate food webs? How can the answers to these and other questions about DOM be considered together so that a better understanding of the significance of DOM can emerge?

Light and Photosynthesis in Aquatic Ecosystems

Author: John T. O. Kirk
Publisher: Cambridge University Press
ISBN: 1139493914
Format: PDF, ePub, Docs
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Beginning systematically with the fundamentals, the fully-updated third edition of this popular graduate textbook provides an understanding of all the essential elements of marine optics. It explains the key role of light as a major factor in determining the operation and biological composition of aquatic ecosystems, and its scope ranges from the physics of light transmission within water, through the biochemistry and physiology of aquatic photosynthesis, to the ecological relationships that depend on the underwater light climate. This book also provides a valuable introduction to the remote sensing of the ocean from space, which is now recognized to be of great environmental significance due to its direct relevance to global warming. An important resource for graduate courses on marine optics, aquatic photosynthesis, or ocean remote sensing; and for aquatic scientists, both oceanographers and limnologists.

Restoration of Aquatic Ecosystems

Author: Committee on Restoration of Aquatic Ecosystems: Science, Technology, and Public Policy
Publisher: National Academies Press
ISBN: 0309596149
Format: PDF, ePub
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Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressed--restoration--is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.

Lipids in Aquatic Ecosystems

Author: Michael T. Arts
Publisher: Springer Science & Business Media
ISBN: 9780387893662
Format: PDF, ePub, Mobi
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Evidence now suggests that the roles of essential fatty acids as growth promoters and as indices of health and nutrition are fundamentally similar in freshwater and marine ecosystems. Lipids in Aquatic Ecosystems integrates this divergent literature into a coordinated, digestible form. Chapters are organized so as to discuss and synthesize the flow of lipids from lower to higher trophic levels, up to and including humans. Linkages between the production, distribution and pathways of these essential compounds within the various levels of the aquatic food webs, and their ultimate uptake by humans and other terrestrial organisms, are highlighted throughout the book. This book will be of interest to researchers and resource managers working with aquatic ecosystems.

Respiration in Aquatic Ecosystems

Author: Paul A. del Giorgio
Publisher: Oxford University Press, USA
ISBN: 9780191523618
Format: PDF, Mobi
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Respiration in aquatic ecosystems is one of the major, and also least understood, components of the global carbon cycle; currently there is no textbook that reviews and analyses the extant information on respiration in natural aquatic systems. This book represents a thorough synthesis and in-depth analysis of the current state of understanding of respiration in aquatic systems, as well as of the main scientific questions and challenges that face this particular field. This work is not intended as an introductory textbook, but rather is aimed at advanced graduate students and researchers actively working in the fields of aquatic ecology, biological oceanography, and biogeochemistry in general. - ;Respiration in aquatic ecosystems is one of the major, and also least understood, components of the global carbon cycle; currently there is no textbook that reviews and analyses the extant information on respiration in natural aquatic systems. This book represents a thorough synthesis and in-depth analysis of the current state of understanding of respiration in aquatic systems, as well as of the main scientific questions and challenges that face this particular field. This work is not intended as an introductory textbook, but rather is aimed at advanced graduate students and researchers actively working in the fields of aquatic ecology, biological oceanography, and biogeochemistry in general. - ;Overall, Respiration in Aquatic Ecosystems is an inspiration for those in the field to expand their own studies, to students to find out more about the specific role of respiration in global carbon fluxes and for scientists, such as myself, who have not previously considered the community and global implications of respiratory measurements. -

Aquatic Ecosystems

Author: Arvind Kumar
Publisher: APH Publishing
ISBN: 9788176484541
Format: PDF, Docs
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In the Indian context; contributed articles.

Chemical Biomarkers in Aquatic Ecosystems

Author: Thomas S. Bianchi
Publisher: Princeton University Press
ISBN: 9781400839100
Format: PDF, Kindle
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This textbook provides a unique and thorough look at the application of chemical biomarkers to aquatic ecosystems. Defining a chemical biomarker as a compound that can be linked to particular sources of organic matter identified in the sediment record, the book indicates that the application of these biomarkers for an understanding of aquatic ecosystems consists of a biogeochemical approach that has been quite successful but underused. This book offers a wide-ranging guide to the broad diversity of these chemical biomarkers, is the first to be structured around the compounds themselves, and examines them in a connected and comprehensive way. This timely book is appropriate for advanced undergraduate and graduate students seeking training in this area; researchers in biochemistry, organic geochemistry, and biogeochemistry; researchers working on aspects of organic cycling in aquatic ecosystems; and paleoceanographers, petroleum geologists, and ecologists. Provides a guide to the broad diversity of chemical biomarkers in aquatic environments The first textbook to be structured around the compounds themselves Describes the structure, biochemical synthesis, analysis, and reactivity of each class of biomarkers Offers a selection of relevant applications to aquatic systems, including lakes, rivers, estuaries, oceans, and paleoenvironments Demonstrates the utility of using organic molecules as tracers of processes occurring in aquatic ecosystems, both modern and ancient

Aquatic Ecosystems

Author: T. V. Ramachandra
Publisher:
ISBN:
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Papers presented at the Lake 2002 International Symposium on Conservation, Restoration and Management of Aquatic Ecosystems, held at Bangalore during 9-13 December 2002.

Using Detection Dogs to Monitor Aquatic Ecosystem Health and Protect Aquatic Resources

Author: Ngaio L. Richards
Publisher: Springer
ISBN: 3319773569
Format: PDF, ePub
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This book is about the varied range of emerging applications using specially trained detection dogs to monitor and protect aquatic ecosystems, animals, plants and related resources. Featuring contributions from those at the forefront of converging disciplines ranging from canine training, ecological and biological monitoring, water resource management, law enforcement, and eco-toxicology, it addresses everyone already immersed in these or related fields, and anyone seeking to gain a broader understanding of them. Chapters cover several common themes including monitoring presence/absence through biological and ecological surveys; maintaining and evaluating water quality; law enforcement and anti-poaching initiatives; public education, awareness and compliance; standards and best practices; optimal uses of dogs in relation to and in conjunction with other available tools and pragmatic considerations for selecting and working with dogs and handlers. The aim of the book is to stimulate new ideas, promote the sharing and dissemination of information and findings - and, ideally, to catalyze new and innovative partnerships, to strengthen the preservation and conservation of our aquatic heritage.