A Yearlong Study of Nitrification Potential, Bacterial Abundance and Productivity in the Sediments of Elkhorn Slough, California

A Yearlong Study of Nitrification Potential, Bacterial Abundance and Productivity in the Sediments of Elkhorn Slough, California PDF Author: Neil Eric Harrington
Publisher:
ISBN:
Category : Biogeochemical cycles
Languages : en
Pages : 128

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A Yearlong Study of Nitrification Potential, Bacterial Abundance and Productivity in the Sediments of Elkhorn Slough, California

A Yearlong Study of Nitrification Potential, Bacterial Abundance and Productivity in the Sediments of Elkhorn Slough, California PDF Author: Neil Eric Harrington
Publisher:
ISBN:
Category : Biogeochemical cycles
Languages : en
Pages : 128

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Estimation of Uncultured Ammonia-oxidizing Bacterial Diversity in Elkhorn Slough Sediment Communities Based on Direct Recovery of Sequence Information from 16S RRNA and Ammonia Monooxygenase Genes

Estimation of Uncultured Ammonia-oxidizing Bacterial Diversity in Elkhorn Slough Sediment Communities Based on Direct Recovery of Sequence Information from 16S RRNA and Ammonia Monooxygenase Genes PDF Author: Icarus Peter Solem
Publisher:
ISBN:
Category : Biogeochemical cycles
Languages : en
Pages : 212

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Nitrification

Nitrification PDF Author: Bess B. Ward
Publisher: American Society for Microbiology Press
ISBN: 1555814816
Category : Science
Languages : en
Pages : 610

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Book Description
A full review of the latest research findings on microbes involved in conventional aerobic nitrification, anaerobic ammonia oxidation, and related processes. • Examines the four principal groups of nitrifying microbes including conventional aerobic bacterial ammonia oxidizers, recently discovered aerobic archaeal ammonia oxidizers, anaerobic ammonia-oxidizing planctomycetes, and nitrite-oxidizing bacteria. • Provides current information on the ecology, phylogeny, biochemistry, molecular biology, and genomics of each group of microbes. • Discusses the latest industrial applications of nitrification and anammox processes, and explores the ecology of nitrification in marine, freshwater, soil, and wastewater environments.

Applications of Paleoenvironmental Techniques in Estuarine Studies

Applications of Paleoenvironmental Techniques in Estuarine Studies PDF Author: Kaarina Weckström
Publisher: Springer
ISBN: 9402409904
Category : Technology & Engineering
Languages : en
Pages : 696

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Book Description
The aim of this edited volume is to introduce the scientific community to paleoenvironmental studies of estuaries, to highlight the types of information that can be obtained from such studies, and to promote the use of paleoenvironmental studies in estuarine management. Readers will learn about the the application of different paleoecological approaches used in estuaries that develop our understanding of their response to natural and human influences. Particular attention is given to the essential steps required for undertaking a paleoecological study, in particular with regard to site selection, core extraction and chronological techniques, followed by the range of indicators that can be used. A series of case studies are discussed in the book to demonstrate how paleoecological studies can be used to address key questions, and to sustainably manage these important coastal environments in the future. This book will appeal to professional scientists interested in estuarine studies and/or paleoenvironmental research, as well as estuarine managers who are interested in the incorporation of paleoenvironmental research into their management programs.

Wigeongrass (Ruppia Maritima L.)

Wigeongrass (Ruppia Maritima L.) PDF Author: Harold A. Kantrud
Publisher:
ISBN:
Category : Ruppia maritima
Languages : en
Pages : 64

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Concepts and Controversies in Tidal Marsh Ecology

Concepts and Controversies in Tidal Marsh Ecology PDF Author: M.P. Weinstein
Publisher: Springer Science & Business Media
ISBN: 0792360192
Category : Nature
Languages : en
Pages : 862

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Book Description
Tidal salt marshes are viewed as critical habitats for the production of fish and shellfish. As a result, considerable legislation has been promulgated to conserve and protect these habitats, and much of it is in effect today. The relatively young science of ecological engineering has also emerged, and there are now attempts to reverse centuries-old losses by encouraging sound wetland restoration practices. Today, tens of thousands of hectares of degraded or isolated coastal wetlands are being restored worldwide. Whether restored wetlands reach functional equivalency to `natural' systems is a subject of heated debate. Equally debatable is the paradigm that depicts tidal salt marshes as the `great engine' that drives much of the secondary production in coastal waters. This view was questioned in the early 1980s by investigators who noted that total carbon export, on the order of 100 to 200 g m-2 y-1 was of much lower magnitude than originally thought. These authors also recognized that some marshes were either net importers of carbon, or showed no net exchange. Thus, the notion of `outwelling' has become but a single element in an evolving view of marsh function and the link between primary and secondary production. The `revisionist' movement was launched in 1979 when stable isotopic ratios of macrophytes and animal tissues were found to be `mismatched'. Some eighteen years later, the view of marsh function is still undergoing additional modification, and we are slowly unraveling the complexities of biogeochemical cycles, nutrient exchange, and the links between primary producers and the marsh/estuary fauna. Yet, since Teal's seminal paper nearly forty years ago, we are not much closer to understanding how marshes work. If anything, we have learned that the story is far more complicated than originally thought. Despite more than four decades of intense research, we do not yet know how salt marshes function as essential habitat, nor do we know the relative contributions to secondary production, both in situ or in the open waters of the estuary. The theme of this Symposium was to review the status of salt marsh research and revisit the existing paradigm(s) for salt marsh function. Challenge questions were designed to meet the controversy head on: Do marshes support the production of marine transient species? If so, how? Are any of these species marsh obligates? How much of the production takes place in situ versus in open waters of the estuary/coastal zone? Sessions were devoted to reviews of landmark studies, or current findings that advance our knowledge of salt marsh function. A day was also devoted to ecological engineering and wetland restoration papers addressing state-of-the-art methodology and specific case histories. Several challenge papers arguing for and against our ability to restore functional salt marshes led off each session. This volume is intended to serve as a synthesis of our current understanding of the ecological role of salt marshes, and will, it is hoped, pave the way for a new generation of research.

Chesapeake Bay Study

Chesapeake Bay Study PDF Author: United States. Army. Corps of Engineers. Baltimore District
Publisher:
ISBN:
Category : Chesapeake Bay
Languages : en
Pages : 176

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National Water Summary

National Water Summary PDF Author:
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 604

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Biogeochemistry of Estuaries

Biogeochemistry of Estuaries PDF Author: Thomas S. Bianchi
Publisher: Oxford University Press
ISBN: 0195160827
Category : Science
Languages : en
Pages : 721

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Book Description
Offering a comprehensive and interdisciplinary approach to the study of biochemical cycling in estuaries, this text utilises numerous illustrations and an extensive literature base in order to impart the current state-of-the-art knowledge in the field.

Coastal Ecological Systems of the United States

Coastal Ecological Systems of the United States PDF Author: Howard T. Odum
Publisher: Conservation Foundation
ISBN: 9780891640189
Category : Coastal ecology
Languages : en
Pages : 1977

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