[PDF] Tidal Mixing And Plankton Dynamics eBook

Author : Malcolm J. Bowman
Publisher : Springer Science & Business Media
Page : 511 pages
File Size : 35,32 MB
Release : 2012-12-06
Category : Science
ISBN : 146124966X

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This book represents an outgrowth of an interdisciplinary session held at the Seventh International Estuarine Research Federation Conference held at Virginia Beach, Virginia, OCLober 1983. At that meeting, the participants agreed to contribute to and develop a monograph entitled "Tidal Mixing and Plankton Dynamics" by inviting an expanded group of authors to contribute chapters on this theme. The emphasis would be to review and summarize the considerable body of knowledge that has accumulated over the last decade or so on the fundamental role tidal mixing plays in energetic shallow seas and estuaries in stimulating and controlling biological production. We have attempted to provide a mix of contributions, composed of reviews of the state-of-the-art, reports on current research activi ties, summaries of the design and testing of a new generation of innovative instruments for biological and chemical sampling and sorting, and some imaginative ideas for future experiments on stimulated mixing in continental shelf seas. We encouraged the contributors to present critical and thought provoking assessments of current wisdom specifying the sorts of techniques and observational strategies needed to validate the various hypotheses linking physical structure, mixing and circulation to plankton biomass and production. We hope this volume will appeal to incoming research students and established scholars alike. We certainly have enjoyed working with all the authors in compiling this book. We thank the numerous scientists who have served as reviewers, P. Boisvert for typing the manuscripts and W. Bellows for proofreading.

Author : K. H. Mann
Publisher : John Wiley & Sons
Page : 526 pages
File Size : 10,68 MB
Release : 2005-12-16
Category : Science
ISBN : 1405111186

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The new edition of this widely respected text provides comprehensive and up-to-date coverage of the effects of biological–physical interactions in the oceans from the microscopic to the global scale. considers the influence of physical forcing on biological processes in a wide range of marine habitats including coastal estuaries, shelf-break fronts, major ocean gyres, coral reefs, coastal upwelling areas, and the equatorial upwelling system investigates recent significant developments in this rapidly advancing field includes new research suggesting that long-term variability in the global atmospheric circulation affects the circulation of ocean basins, which in turn brings about major changes in fish stocks. This discovery opens up the exciting possibility of being able to predict major changes in global fish stocks written in an accessible, lucid style, this textbook is essential reading for upper-level undergraduates and graduate students studying marine ecology and biological oceanography

Author : Zhigang Lai
Publisher :
Page : 281 pages
File Size : 26,23 MB
Release : 2010
Category : Nonlinear waves
ISBN :

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A simple Nutrient-Phytoplankton-Zooplankton (NPZ) model was coupled with the non-hydrostatic Finite-Volume Coastal Ocean Model (FVCOM-NH) to study the impact of high-frequency nonlinear internal waves on plankton dynamics in Massachusetts Bay (MB) during the stratified summer season. The temporal and spatial variability of phytoplankton concentration follows the vertical isopycnal displacement to the lowest order as the waves are generated by the semidiurnal tidal flow over Stellwagen Bank (SB) and propagate westward across MB. The tidally-averaged distribution of phytoplankton is characterized by three distinct zones of low subsurface concentration: (I) the western flank of Stellwagen Bank; (II) the center of Stellwagen Basin; and (III) the upper western flank of Stellwagen Basin. The result of a model dye experiment suggests that these zones are created by the following physical processes which are dominant in each zone: (I) hydraulic jump; (II) strong internal wave-tidal current nonlinear interaction; and (III) energetic internal wave dissipation and subsequent mixing processes. The nonlinear interaction of the internal waves and offshore tidal currents significantly enhances the vertical velocity, and increases wave dissipation, thus causing an onshore transport of phytoplankton in zone II. Although the phytoplankton patchy structure can be produced using the hydrostatic FVCOM, the resulting phytoplankton concentration is overestimated due to the unrealistic intensification of vertical velocity and thus vertical nutrient flux from the deep water. It suggests that non-hydrostatic dynamics should be considered for certain small-scale biological processes that are driven primarily by the physics.

Author : John H. Steele
Publisher : Springer Science & Business Media
Page : 500 pages
File Size : 33,81 MB
Release : 1978-01-11
Category : Science
ISBN : 9780306400575

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The planning for the conference held at Erice, Sicily, in November 1977, began with discussions among oceanographers from several countries on the need to consider the special problems and the recent results in the study of plankton "patchiness. " An approach to the Marine Sciences Panel of the NATO Science Committee resulted in a planning grant to determine the probable content and participation in such a meeting. The planning group consisted of B. Battaglia (Padua), G. E. B. Kullenberg (Copenhagen), A. Okubo (New York), T. Platt (Halifax, Nova Scotia) and J. H. Steele (Aberdeen). The group met in Aberdeen, Scotland, in September 1976. The proposal for a NATO School on the subject of "Spatial Pattern in Plankton Communities" was accepted by the Marine Science Panel and it was agreed that it be held at the Ettore Majorana Centre for Scientific Culture in Erice. The Centre began in 1963 with an International School of Subnuclear Physics and has since developed to include courses in many other subjects which cover various fields of basic and applied research. The original aim of the . Centre was to create, in Italy, a cultural forum of high scientific standard which would allow young research workers to appreciate problems currently of major interest in various fields of research.

Author : Norbert Walz
Publisher : Springer Science & Business Media
Page : 310 pages
File Size : 30,51 MB
Release : 2012-12-06
Category : Science
ISBN : 3642778046

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Continuous cultures, i.e. chemostats with an continuous dilution rate, are model ecosystems for the study of general regulation principles in plankton communities. Further to an introduction, general continuous culture methods and especially the characteristics of rotifer continuousculture systems are presented. Sections on metabolism and energetics in chemostats, growth models, competition and predator-prey interactions, as well as the application of rotifer continuous cultures to ecotoxicology and their use in aquaculture are included.