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Ocean Fronts In The Southern California Current System And Their Role In Structuring Zooplankton Distributions Diel Vertical Migration And Size Composition
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Book Synopsis Ocean Fronts in the Southern California Current System and Their Role in Structuring Zooplankton Distributions, Diel Vertical Migration, and Size Composition by : Jesse Russell Powell
Download or read book Ocean Fronts in the Southern California Current System and Their Role in Structuring Zooplankton Distributions, Diel Vertical Migration, and Size Composition written by Jesse Russell Powell and published by . This book was released on 2013 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean fronts are dynamic gradients that divide waters with differing hydrographic properties. Fronts also play important ecological roles in structuring plankton distributions, modulating primary and secondary production, and delineating predator foraging areas. Here, I utilize autonomous "Spray" ocean gliders to describe the spatial and seasonal distribution of deep-water fronts and their impact on the plankton within the Southern California Current System (SCCS). To test the suitability of the Spray's 750 kHz acoustic doppler profilers (ADP) for mapping zooplankton distributions, I first present results from a seatruthing study in which I mounted an ADP on a Mocness plankton net. I show that the relative mean volume backscatter (rMVBS) measured by the ADP is correlated with the summed zooplankton cross-sectional area (a proxy for biomass). I also find that the relationship between rMVBS and zooplankton biomass is strongest for zooplankters with an estimated spherical diameter greater than 1.6 mm. Observed rMVBS was best explained by euphausiid and copepod biomass. From Spray cross-shore sections between October, 2006 and December, 2011, I identified 154 distinct surface layer density fronts. The strongest and most numerous fronts occurred in spring, and were located closer to the coast, whereas summer and fall fronts were found further offshore. Fronts were weakest and least numerous in winter. Across all seasons, fronts structured plankton distributions. Horizontal gradients in physical variables (e.g., surface density, temperature, and salinity) co-varied with horizontal gradients in MVBS and Chl-a fluorescence, and the magnitude of biological gradients was higher at frontal areas compared with non-frontal areas. Frontal areas were also clearly associated with elevated Chl-a and zooplankton acoustic backscatter. Fronts divided distinct plankton habitats and associated assemblages. Chlorophyll a fluorescence maxima and euphotic zones were deeper offshore of fronts. The amplitude of diel vertical migration by zooplankton also increased offshore, in association with increased optical transparency in the upper ocean. Additionally, ADP data indicate that zooplankton assemblages change across fronts. I employ an inverse acoustic model to estimate zooplankton size spectra, inferring that larger-bodied zooplankters contributed a greater proportion to overall biomass inshore of these fronts. Vertically-stratified zooplankton samples from both inshore and offshore regions corroborated the model results.
Book Synopsis Zooplankton and Nekton: Gatekeepers of the Biological Pump by : Rainer Kiko
Download or read book Zooplankton and Nekton: Gatekeepers of the Biological Pump written by Rainer Kiko and published by Frontiers Media SA. This book was released on 2020-09-14 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Zooplankton Sampling written by Unesco and published by Bernan Press(PA). This book was released on 1968 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Real-time Coastal Observing Systems for Marine Ecosystem Dynamics and Harmful Algal Blooms by : Babin, Marcel
Download or read book Real-time Coastal Observing Systems for Marine Ecosystem Dynamics and Harmful Algal Blooms written by Babin, Marcel and published by UNESCO. This book was released on 2008-06-05 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proliferation of harmful phytoplankton in marine ecosystems can cause massive fish kills, contaminate seafood with toxins, impact local and regional economies and dramatically affect ecological balance. Real-time observations are essential for effective short-term operational forecasting, but observation and modelling systems are still being developed. This volume provides guidance for developing real-time and near real-time sensing systems for observing and predicting plankton dynamics, including harmful algal blooms, in coastal waters. The underlying theory is explained and current trends in research and monitoring are discussed.Topics covered include: coastal ecosystems and dynamics of harmful algal blooms; theory and practical applications of in situ and remotely sensed optical detection of microalgal distributions and composition; theory and practical applications of in situ biological and chemical sensors for targeted species and toxin detection; integrated observing systems and platforms for detection; diagnostic and predictive modelling of ecosystems and harmful algal blooms, including data assimilation techniques; observational needs for the public and government; and future directions for research and operations.
Book Synopsis Ecological Heterogeneity by : Jurek Kolasa
Download or read book Ecological Heterogeneity written by Jurek Kolasa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: An attractive, promising, and frustrating feature of ecology is its complex ity, both conceptual and observational. Increasing acknowledgment of the importance of scale testifies to the shifting focus in large areas of ecology. In the rush to explore problems of scale, another general aspect of ecolog ical systems has been given less attention. This aspect, equally important, is heterogeneity. Its importance lies in the ubiquity of heterogeneity as a feature of ecological systems and in the number of questions it raises questions to which answers are not readily available. What is heterogeneity? Does it differ from complexity? What dimensions need be considered to evaluate heterogeneity ade quately? Can heterogeneity be measured at various scales? Is heterogeneity apart of organization of ecological systems? How does it change in time and space? What are the causes of heterogeneity and causes of its change? This volume attempts to answer these questions. It is devoted to iden tification of the meaning, range of applications, problems, and methodol ogy associated with the study of heterogeneity. The coverage is thus broad and rich, and the contributing authors have been encouraged to range widely in discussions and reflections. vi Preface The chapters are grouped into themes. The first group focuses on the conceptual foundations (Chapters 1-5). These papers exarnine the meaning of the term, historical developments, and relations to scale. The second theme is modeling population and interspecific interactions in hetero geneous environments (Chapters 6 and 7).
Author :Brodeur, Richard D Publisher :Sidney, B.C. : North Pacific Marine Science Organization ISBN 13 :9781897176023 Total Pages :115 pages Book Rating :4.1/5 (76 download)
Book Synopsis Micronekton of the North Pacific by : Brodeur, Richard D
Download or read book Micronekton of the North Pacific written by Brodeur, Richard D and published by Sidney, B.C. : North Pacific Marine Science Organization. This book was released on 2005 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Intergovernmental Panel on Climate Change (IPCC) Publisher :Cambridge University Press ISBN 13 :9781009157971 Total Pages :755 pages Book Rating :4.1/5 (579 download)
Book Synopsis The Ocean and Cryosphere in a Changing Climate by : Intergovernmental Panel on Climate Change (IPCC)
Download or read book The Ocean and Cryosphere in a Changing Climate written by Intergovernmental Panel on Climate Change (IPCC) and published by Cambridge University Press. This book was released on 2022-04-30 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for assessing the science related to climate change. It provides policymakers with regular assessments of the scientific basis of human-induced climate change, its impacts and future risks, and options for adaptation and mitigation. This IPCC Special Report on the Ocean and Cryosphere in a Changing Climate is the most comprehensive and up-to-date assessment of the observed and projected changes to the ocean and cryosphere and their associated impacts and risks, with a focus on resilience, risk management response options, and adaptation measures, considering both their potential and limitations. It brings together knowledge on physical and biogeochemical changes, the interplay with ecosystem changes, and the implications for human communities. It serves policymakers, decision makers, stakeholders, and all interested parties with unbiased, up-to-date, policy-relevant information. This title is also available as Open Access on Cambridge Core.
Download or read book The Zoological Record written by and published by . This book was released on 1870 with total page 1480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution, Structure, and Function of Marine Ecological Communities in the Northern California Current Upwelling Ecosystem by : Douglas Charles Reese
Download or read book Distribution, Structure, and Function of Marine Ecological Communities in the Northern California Current Upwelling Ecosystem written by Douglas Charles Reese and published by . This book was released on 2005 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Linkages Between Physical Structure and Primary Production in the California Current by :
Download or read book Linkages Between Physical Structure and Primary Production in the California Current written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project was aimed at better defining the linkages between physical structure and ecosystem structure in the California Current with the goal of improving our ability to predict pattern in plankton distributions based upon models of ocean circulation. We used an empirical approach of analyzing large data sets to see which aspects of physical structure were best correlated with biological structure. We collected and analyzed new data with a continuous underway mapping system to examine mesoscale structure, and we analyzed historical data to examine seasonal, interannual and decadal time scales. We showed that the front at the inner edge of the California Current is an important boundary and that knowledge of the location of this feature has useful predictive value. We developed a better understanding of regional pattern in the relation between near surface T/S structure and the chlorophyll distribution. We showed that simple trophodynamic models may be insufficient to explain linkages between physical structure and plankton abundance on decadal time scales.
Book Synopsis Upwelling Systems of the World by : Jochen Kämpf
Download or read book Upwelling Systems of the World written by Jochen Kämpf and published by Springer. This book was released on 2016-08-29 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Upwelling systems are special places in the oceans where nutrient-enriched water is brought into the euphotic zone to fuel phytoplankton blooms that, via marine food-web interactions, create the world’s richest fish resources. This book introduces the reader to the interdisciplinary science of upwelling and provides a comprehensive overview of the world’s most productive marine ecosystems in the context of climate variability, climate change and human exploitation. This material presented is suitable for undergraduate and postgraduate study or just for anyone interested to learn about the creation of life in the oceans and how this is compromised by human activities.
Book Synopsis Ocean Biogeochemistry by : Michael J.R. Fasham
Download or read book Ocean Biogeochemistry written by Michael J.R. Fasham and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceans account for 50% of the anthropogenic CO2 released into the atmosphere. During the past 15 years an international programme, the Joint Global Ocean Flux Study (JGOFS), has been studying the ocean carbon cycle to quantify and model the biological and physical processes whereby CO2 is pumped from the ocean's surface to the depths of the ocean, where it can remain for hundreds of years. This project is one of the largest multi-disciplinary studies of the oceans ever carried out and this book synthesises the results. It covers all aspects of the topic ranging from air-sea exchange with CO2, the role of physical mixing, the uptake of CO2 by marine algae, the fluxes of carbon and nitrogen through the marine food chain to the subsequent export of carbon to the depths of the ocean. Special emphasis is laid on predicting future climatic change.
Book Synopsis Manual on Harmful Marine Microalgae by : Intergovernmental Oceanographic Commission
Download or read book Manual on Harmful Marine Microalgae written by Intergovernmental Oceanographic Commission and published by . This book was released on 1995 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamics of Marine Ecosystems by : K. H. Mann
Download or read book Dynamics of Marine Ecosystems written by K. H. Mann and published by John Wiley & Sons. This book was released on 2013-04-16 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of this widely respected text providescomprehensive and up-to-date coverage of the effects ofbiological–physical interactions in the oceans from themicroscopic to the global scale. considers the influence of physical forcing on biologicalprocesses in a wide range of marine habitats including coastalestuaries, shelf-break fronts, major ocean gyres, coral reefs,coastal upwelling areas, and the equatorial upwelling system investigates recent significant developments in this rapidlyadvancing field includes new research suggesting that long-term variability inthe global atmospheric circulation affects the circulation of oceanbasins, which in turn brings about major changes in fish stocks.This discovery opens up the exciting possibility of being able topredict major changes in global fish stocks written in an accessible, lucid style, this textbook isessential reading for upper-level undergraduates and graduatestudents studying marine ecology and biological oceanography
Book Synopsis The Eastern Bering Sea Shelf by : Donald Wilbur Hood
Download or read book The Eastern Bering Sea Shelf written by Donald Wilbur Hood and published by . This book was released on 1981 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Prince Edward Islands by : Steven Chown
Download or read book The Prince Edward Islands written by Steven Chown and published by AFRICAN SUN MeDIA. This book was released on 2008-06-01 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a modern, synthetic overview of what is known about the structure, functioning and interactions of marine and terrestrial systems at the Prince Edward Islands. Building on more than 50 years of biological, geological, meteorological, and oceanographic research, it demonstrates not only how inextricably linked marine and terrestrial systems at the islands are, but also how global environmental challenges, such as climate change, biological invasions, and over exploitation, are playing out at the regional and local levels in the Southern Ocean.
Book Synopsis Satellite Observations of Phytoplankton Variability in the California Current System by : Paul M. DiGiacomo
Download or read book Satellite Observations of Phytoplankton Variability in the California Current System written by Paul M. DiGiacomo and published by . This book was released on 1999 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
