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Author : Lev N. Neretin
Publisher : Springer Science & Business Media
ISBN 13 : 9781402042621
Total Pages : 572 pages
Book Rating : 4.0/5 (426 download)
Download or read book Past and Present Water Column Anoxia written by Lev N. Neretin and published by Springer Science & Business Media. This book was released on 2006 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Muriel Gargaud
Publisher : Springer Nature
ISBN 13 : 3662650932
Total Pages : 3376 pages
Book Rating : 4.6/5 (626 download)
Download or read book Encyclopedia of Astrobiology written by Muriel Gargaud and published by Springer Nature. This book was released on 2023-07-27 with total page 3376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its third edition the Encyclopedia of Astrobiology serves as the key to a common understanding in the extremely interdisciplinary community of astrobiologists. Each new or experienced researcher and graduate student in adjacent fields of astrobiology will appreciate this reference work in the quest to understand the big picture. The carefully selected group of active researchers contributing to this work are aiming to give a comprehensive international perspective on and to accelerate the interdisciplinary advance of astrobiology. The interdisciplinary field of astrobiology constitutes a joint arena where provocative discoveries are coalescing concerning, e.g. the prevalence of exoplanets, the diversity and hardiness of life, and its chances for emergence. Biologists, astrophysicists, (bio)-chemists, geoscientists and space scientists share this exciting mission of revealing the origin and commonality of life in the Universe. With its overview articles and its definitions the Encyclopedia of Astrobiology not only provides a common language and understanding for the members of the different disciplines but also serves for educating a new generation of young astrobiologists who are no longer separated by the jargon of individual scientific disciplines. This new edition offers ~170 new entries. More than half of the existing entries were updated, expanded or supplemented with figures supporting the understanding of the text. Especially in the fields of astrochemistry and terrestrial extremophiles but also in exoplanets and space sciences in general there is a huge body of new results that have been taken into account in this new edition. Because the entries in the Encyclopedia are in alphabetical order without regard for scientific field, this edition includes a section “Astrobiology by Discipline” which lists the entries by scientific field and subfield. This should be particularly helpful to those enquiring about astrobiology, as it illustrates the broad and detailed nature of the field.
Author : Virginia H. Dale
Publisher : Springer Science & Business Media
ISBN 13 : 0387896864
Total Pages : 334 pages
Book Rating : 4.3/5 (878 download)
Download or read book Hypoxia in the Northern Gulf of Mexico written by Virginia H. Dale and published by Springer Science & Business Media. This book was released on 2010-04-12 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1985, scientists have been documenting a hypoxic zone in the Gulf of Mexico each year. The hypoxic zone, an area of low dissolved oxygen that cannot s- port marine life, generally manifests itself in the spring. Since marine species either die or ee the hypoxic zone, the spread of hypoxia reduces the available habitat for marine species, which are important for the ecosystem as well as commercial and recreational shing in the Gulf. Since 2001, the hypoxic zone has averaged 2 1 16,500 km during its peak summer months , an area slightly larger than the state 2 2 of Connecticut, and ranged from a low of 8,500 km to a high of 22,000 km . To address the hypoxia problem, the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force (or Task Force) was formed to bring together represen- tives from federal agencies, states, and tribes to consider options for responding to hypoxia. The Task Force asked the White House Of ce of Science and Technology Policy to conduct a scienti c assessment of the causes and consequences of Gulf hypoxia through its Committee on Environment and Natural Resources (CENR).
Author : Xianghui Guo
Publisher : Frontiers Media SA
ISBN 13 : 288976253X
Total Pages : 544 pages
Book Rating : 4.8/5 (897 download)
Download or read book Acidification and Hypoxia in Marginal Seas written by Xianghui Guo and published by Frontiers Media SA. This book was released on 2022-05-27 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: The image is modified based on Figure 1a of Lucey et al. (this Research Topic) and Figure 7b of Niemi et al. (this Research Topic). (A) Graphical depiction of atmospheric warming and increasing atmospheric carbon dioxide (CO2atm), which drives ocean warming, contribute to the decreases in dissolved oxygen (DO), and lowers pH and saturation state index of calcium carbonate (Ω). The partial pressure of CO2 (pCO2) increases due to increasing atmospheric CO2 that is absorbed into the seawater (i.e., ocean acidification), along with other biological processes in the marine environment. (B) Scanning Electron Microscope (SEM) image showing dissolution on pteropod shells collected in the Amundsen Gulf in the Canadian Arctic, in 2017. Lucey N, Haskett E and Collin R (2020) Multi-stressor Extremes Found on a Tropical Coral Reef Impair Performance. Front. Mar. Sci. 7:588764. doi: 10.3389/fmars.2020.588764 Niemi A, Bednaršek N, Michel C, Feely RA, Williams W, Azetsu-Scott K, Walkusz W and Reist JD (2021) Biological Impact of Ocean Acidification in the Canadian Arctic: Widespread Severe Pteropod Shell Dissolution in Amundsen Gulf. Front. Mar. Sci. 8:600184. doi: 10.3389/fmars.2021.600184
Author : Bess B Ward
Publisher : Frontiers Media SA
ISBN 13 : 2889194124
Total Pages : 175 pages
Book Rating : 4.8/5 (891 download)
Download or read book The microbial nitrogen cycle written by Bess B Ward and published by Frontiers Media SA. This book was released on 2015-01-17 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is an essential element in biological systems, and one that often limits production in both aquatic and terrestrial systems. Due to its requirement in biological macromolecules, its acquisition and cycling have the potential to structure microbial communities, as well as to control productivity on the ecosystem scale. In addition, its versatile redox chemistry is the basis of complex biogeochemical transformations that control the inventory of fixed nitrogen, both in local environments and over geological time. Although many of the pathways in the microbial nitrogen cycle were described more than a century ago, additional fundamental pathways have been discovered only recently. These findings imply that we still have much to learn about the microbial nitrogen cycle, the organisms responsible for it, and their interactions in natural and human environments. Progress in nitrogen cycle research has been facilitated by recent rapid technological advances, especially in genomics and isotopic approaches. In this Research Topic, we reviewed the leading edge of nitrogen cycle research based on these approaches, as well as by exploring microbial processes in modern ecosystems.
Author : Richard V. Tyson
Publisher : Geological Society Publishing House
ISBN 13 :
Total Pages : 490 pages
Book Rating : 4.:/5 (318 download)
Download or read book Modern and Ancient Continental Shelf Anoxia written by Richard V. Tyson and published by Geological Society Publishing House. This book was released on 1991 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.3/5 (91 download)
Download or read book Oceanology written by and published by . This book was released on 2006 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jerry D. Wiggert
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.F/5 ( download)
Download or read book Indian Ocean Biogeochemical Processes and Ecological Variability written by Jerry D. Wiggert and published by American Geophysical Union. This book was released on 2009-01-12 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indian Ocean Biogeochemical Processes and Ecological Variability provides a unique synthesis of current knowledge on Indian Ocean biogeochemistry and ecology, and an introduction of new concepts and topical paradigm challenges. It also reports on the development of more extensive/frequent observational capacity being deployed in the Indian Ocean. This book The volume is derived from invited plenary talks that were presented at the initial SIBER workshop held at the National Institute of Oceanography (NIO) in Goa, India in October 2006. It includes contributions from some of the most esteemed oceanographers and Indian Ocean experts in the world. This volume will be valuable to academic and governmental researchers interested in oceanographic, atmospheric and hydrological questions and the interfaces between these processes that are prevalent within the Earth system and which are especially relevant to understanding the complex interactions in the Indian Ocean. The volume discusses: y The overlying physical processes set by monsoonal forcing and how these control biological production and variability y Nutrient cycling and limitation y Pelagic carbon cycling and air-sea exchange y Benthic biogeochemistry and ecology y The impact of climate and human activities on biogeochemistry and ecosystems.
Author : Michael J. Kennish
Publisher : Springer
ISBN 13 : 9789401788007
Total Pages : 790 pages
Book Rating : 4.7/5 (88 download)
Download or read book Encyclopedia of Estuaries written by Michael J. Kennish and published by Springer. This book was released on 2015-08-17 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Estuaries, part of Springer's Encyclopedia of Earth Sciences Series, provides a single, state-of-the-art, comprehensive reference volume on estuaries for research scientists, educators, students, and others. Consisting of almost 270 subject entries in an easy-to-use format, this volume covers the physical, chemical, and biological characteristics of estuaries. In total more than 225 authors from around the world have contributed to the encyclopedia on such diverse subjects as biotic communities, essential habitats, food webs, fisheries, hydrology, pollution, conservation, and many more. The Encyclopedia of Estuaries will meet the needs of professionals worldwide by supplying detailed information from world-class estuarine and marine scientists as well as experts from other fields of study.
Author : Arthur James Wells
Publisher :
ISBN 13 :
Total Pages : 1884 pages
Book Rating : 4.3/5 (91 download)
Download or read book The British National Bibliography written by Arthur James Wells and published by . This book was released on 2006 with total page 1884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Clarence S. Clay
Publisher :
ISBN 13 :
Total Pages : 572 pages
Book Rating : 4.3/5 (91 download)
Download or read book Acoustical Oceanography written by Clarence S. Clay and published by . This book was released on 1977-07-12 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stanley Charles Finney
Publisher :
ISBN 13 : 9780813724669
Total Pages : 208 pages
Book Rating : 4.7/5 (246 download)
Download or read book The Ordovician Earth System written by Stanley Charles Finney and published by . This book was released on 2010 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Ordovician period is a significant chapter in Earth's history that included the great Mid-Ordovician biodiversification event, the Hirnantian glaciation, and long-term greenhouse conditions. Ordovician rocks are widespread on most continents and the recent finalization of a modern chronostratigraphic classification of the Ordovician system now facilitates high-resolution correlations that allow for integrated multidisciplinary research. The diverse papers comprising this volume address orogenesis, paleogeography, climate modeling, sedimentation, biodiversity, and isotopic excursions; together they promote an integrated view of the Ordovician earth system."--Publisher's description.
Author :
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (318 download)
Download or read book Black Sea Oceanography written by and published by . This book was released on 2006 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander Altenbach
Publisher : Springer Science & Business Media
ISBN 13 : 9400718969
Total Pages : 642 pages
Book Rating : 4.4/5 (7 download)
Download or read book Anoxia written by Alexander Altenbach and published by Springer Science & Business Media. This book was released on 2011-10-20 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: ANOXIA defines the lack of free molecular oxygen in an environment. In the presence of organic matter, anaerobic prokaryotes produce compounds such as free radicals, hydrogen sulfide, or methane that are typically toxic to aerobes. The concomitance of suppressed respiration and presence of toxic substances suggests these habitats are inhospitable to Eukaryota. Ecologists sometimes term such environments 'Death Zones'. This book presents, however, a collection of remarkable adaptations to anoxia, observed in Eukaryotes such as protists, animals, plants and fungi. Case studies provide evidence for controlled beneficial use of anoxia by, for example, modification of free radicals, use of alternative electron donors for anaerobic metabolic pathways, and employment of anaerobic symbionts. The complex, interwoven existence of oxic and anoxic conditions in space and time is also highlighted as is the idea that eukaryotic inhabitation of anoxic habitats was established early in Earth history.
Author :
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (318 download)
Download or read book The Mandovi and Zuari Estuaries written by and published by . This book was released on 2007 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed articles.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309069483
Total Pages : 422 pages
Book Rating : 4.3/5 (9 download)
Download or read book Clean Coastal Waters written by National Research Council and published by National Academies Press. This book was released on 2000-08-17 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309209196
Total Pages : 153 pages
Book Rating : 4.3/5 (92 download)
Download or read book Understanding Earth's Deep Past written by National Research Council and published by National Academies Press. This book was released on 2011-08-02 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is little dispute within the scientific community that humans are changing Earth's climate on a decadal to century time-scale. By the end of this century, without a reduction in emissions, atmospheric CO2 is projected to increase to levels that Earth has not experienced for more than 30 million years. As greenhouse gas emissions propel Earth toward a warmer climate state, an improved understanding of climate dynamics in warm environments is needed to inform public policy decisions. In Understanding Earth's Deep Past, the National Research Council reports that rocks and sediments that are millions of years old hold clues to how the Earth's future climate would respond in an environment with high levels of atmospheric greenhouse gases. Understanding Earth's Deep Past provides an assessment of both the demonstrated and underdeveloped potential of the deep-time geologic record to inform us about the dynamics of the global climate system. The report describes past climate changes, and discusses potential impacts of high levels of atmospheric greenhouse gases on regional climates, water resources, marine and terrestrial ecosystems, and the cycling of life-sustaining elements. While revealing gaps in scientific knowledge of past climate states, the report highlights a range of high priority research issues with potential for major advances in the scientific understanding of climate processes. This proposed integrated, deep-time climate research program would study how climate responded over Earth's different climate states, examine how climate responds to increased atmospheric carbon dioxide and other greenhouse gases, and clarify the processes that lead to anomalously warm polar and tropical regions and the impact on marine and terrestrial life. In addition to outlining a research agenda, Understanding Earth's Deep Past proposes an implementation strategy that will be an invaluable resource to decision-makers in the field, as well as the research community, advocacy organizations, government agencies, and college professors and students.
