Download or read book Ecosystem Modeling as a Management Tool for the Black Sea written by Leonid I. Ivanov and published by Springer Science & Business Media. This book was released on 1998 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text tackles complex scientific problems related to the evolution of the Black Sea ecosystem. This volume contains 27 papers in all, two on the NATO TU Black Sea database and database management system, eight on the Black Sea biogeochemistry, and 17 on the biological structure of the basin.
Download or read book Sensitivity to Change written by Emin Özsoy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent decades have seen a degradation of the environmental quality in semi-enclosed seas, which are particularly sensitive to population pressures due to their naturally low flushing rates related to their geometry. The North Sea, Baltic Sea and the Black Sea are amongst the most seriously threatened seas in the Euro-Asian region. Each semi-enclosed sea has a distinct pattern of circulation, transport, mixing, associated with the particular geometry, topography, boundary processes, interior stratification, atmospheric forcing, ice fonnation, straits / sill controls, and the specific inputs of freshwater, nutrients and pollutants. The workshop investigated the distinctive physical and ecological characteristics of the three seas in a comparative manner, in order to identify the types of driving forces and dynamic controls operating on productivity, nutrient cycling, physical transport and mixing mechanisms. A comparative study of these controlling mechanisms would allow us to better understand ecosystem sensitivity in these different environments. The workshop presentations highlighted the complexity of the semi-enclosed seas related to the interaction amongst the physical, chemical and biological fields, and differences in time and space scales in each of the systems. Further, a strong climate signal exists in these systems, manifest in the interannual, interdecadal and longer term variability. Part of the variability appears connected with background climatic variability.
Download or read book The Black Sea written by Emil Vespremeanu and published by Springer. This book was released on 2017-11-24 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book underpins the geography of the Black Sea, covering topics such as morphology, morphography, geology, and history of the Black Sea. It also discusses environmental aspects affecting the population in the Black Sea's coastal settlements and looks to the future of the Black Sea region. This book covers a gap in research in the field of world regional geography of the Black Sea by providing a comprehensive methodology and terminology to readers, students and teachers in the field.
Download or read book Analysis of Toxic and Non toxic Alexandrium Dinophyceae Species Using Ribosomal RNA Gene Sequences written by Christopher Alan Scholin and published by . This book was released on 1993 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sequences of small subunit (Ss) and large subunit (Ls) ribosomal RNA genes (rDNA) from the marine dinoflagellates Alexandrium tamarense, A. catenella, A. fundyense, A. affine, A. minutum, A. lusitanicum and A. andersoni were compared to assess the organisms' relationships. Cultures represent isolates from North America, Western Europe, Thailand, Japan, Australia and the ballast water of several cargo vessels, and include both toxic and non-toxic strains. An emphasis was placed on the A. tamarense/catenella/fundyense "species complex," a group of morphotypically-similar organisms found in many regions of the world. Two distinct SsrRNA genes, termed the "A gene" and the "B gene," were found in a toxic A. fundyense isolated from eastern North America. The B gene is considered to be a pseudogene. A restriction fragment length polymorphism (RFLP) assay developed to detect the A and B genes revealed five distinct groups of Alexandrium isolates. Three subdivide the A. tamarense/catenella/fundyense complex, but do not correlate with morphospecies designations. The two remaining groups are associated with cultures that clearly differ morphologically from the A. tamarense/ catenella/fundyense group: the fourth group consists of A. affine isolates, and the fifth group is represented by A. minutum, A.lusitanicum and A. andersoni. The B gene was only found in A. tamarense/catenella/ fundyense, but not in all members of this species complex. The B gene is not uniformly distributed among global populations of Alexandrium. All A. tamarense/catenella/fundyense isolates from North America harbor this gene, but it has also been found in some A. tamarense from scattered locations in Japan, as well as in A. tamarense from the ballast water of one cargo vessel which was on a defined run from Japan to Australia. The B gene may be endemic to North American populations of A. tamarense/catenella/fundyense. It is possible that in the recent past North American A. tamarense were introduced to Japanese waters, and cysts of these organisms have been transported from Japan to Australia. A subset of isolates examined using the the RFLP assay were also compared by cloning and sequencing a fragment of their LsrDNA. Eight major classes of LsrDNA sequences, termed "ribotypes," were identified. Five ribotypes subdivide members of the A. tamarense/catenella!fundyense complex; all isolates containing the B gene cluster as one ribotype. The three remaining ribotypes are typified by: 1) A. affine; 2) A. minutum and A. lusitanicum; and, 3) A. andersoni. LsrDNAs from A. minutum and A. lusitanicum are indistinguishable. A. minutum!lusitanicum/andersoni may represent another Alexandrium species complex, analogous to the A. tamarense/catenella/fundyense group. An organisms' ability to produce toxin appears to be correlated with its LsrDNA phylogenetic lineage. Ribotypes ascribed by the LsrDNA sequences are in complete agreement with, and offer a finer-scale resolution of, groups defined by SsrDNA restriction patterns. The SsrDNA RFLP groups and LsrDNA ribotypes are useful species- and population-specific markers. Alexandrium tamarense/catenella/fundyense exist as geneticallydistinct "strains" (populations), not three genetically-distinct species: representatives collected from the same geographic region appear the most similar, regardless of morphotype, whereas those from geographicallyseparated populations are more divergent even when the same morphospecies are compared. Contrary to this general pattern, A. tamarense/catenella from Japan were found to be exceptionally heterogeneous. Ballast water samples show that viable cysts (resting spores) of toxigenic A. tamarense/catenella are being discharged into Australian ports from multiple, genetically-distinct source populations. The rDNA sequences were also used to test theories accounting for the evolution and global dispersal of A. tamarense/catenella/fundyense. Results suggest a monophyletic radiation of these organisms from a common ancestor that included, or gave rise to, multiple morphotypes. Populations appear to have diverged as a result of vicariance (geographic isolation). The co-occurrence of genetically-distinct strains of these organisms is an indication of dispersal. An example of this is seen in Japan where an introduction of North American A. tamarense appears likely. Determining the timing of dispersal events is problematic if based strictly on rDNA sequence similarities, since these molecules undergo change on a scale of millions of years
Download or read book Oil Spill Response A Global Perspective written by Walter F. Davidson and published by Springer Science & Business Media. This book was released on 2008-06-20 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: International experts in the field of oil spill response, including reprsentatives from 26 NATO countries, participated in a workshop in Canada to discuss their experience in the development and application of current and emerging technologies for oil spill response in the marine environment. These presentations which form the basis of chapters in this book provide a practical viewpoint of methods used to deal with oil spills under the variety of environmental conditions found in the marine environment. In particular, focus is given to the evaluation of oil spill countermeasures for use under arctic conditions in light of anticipated regional increases in marine traffic (e.g. Northwest Passage) and industrial activities (e.g. offshore oil and gas exploration) in the future. This book provides a timely international perspective on applied research and development, technology transfer, and “lessons learned” from field trials and actual case studies associated with recent spill events. Topics include Preparedness/Contingency Planning, (Eco-terrorism); Oil Spill Fate and Transport (Environmental Persistence, Remote Sensing, modelling, Biodegradation), Biological Effects (Environmental Effects Monitoring and Environmental Risk Assessment); and Operational Response (Containment/Recovery Treating Agents, Shoreline Cleanup, In-situ Burning, Emerging Response Strategies). This book provides a synopsis as to the methods currently employed to deals with spills and an insight on future technologies under development.
Download or read book The Global Coastal Ocean Panregional syntheses and the coasts of North and South America and Asia written by Allan R. Robinson and published by Harvard University Press. This book was released on 2006 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trajectories in Oceanography written by Emil Stanev and published by Springer Nature. This book was released on 2023-09-14 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the development of oceanography of European regional and coastal seas over the last 50 years. It describes the evolution of scientific practice alongside the technological development of measurements and computer modelling. Emphasis is placed on transformation of basic research into applied science and services. This reflects the growing public awareness of ocean issues. The recent advancements in the field of operational oceanography are presented as an important scientific response to the needs of environmental protection and sustainable development. The book could be of interest to scientists and students in various fields of oceanography, to practitioners in the field, and to the general readership interested in environmental sciences.
Download or read book U S Strategies for Cooperation with the Soviets on Ocean Science written by and published by . This book was released on 1991 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling Ocean Climate Variability written by Artem S. Sarkisyan and published by Springer Science & Business Media. This book was released on 2009-05-13 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this wide-ranging and comprehensive review of the historical development and current status of ocean circulation models, the analysis extends from simple analytical approaches to the latest high-resolution numerical models with data assimilation. The authors, both of whom are pioneer scientists in ocean and shelf sea modelling, look back at the evolution of Western and Eastern modelling methodologies during the second half of the last century. They also present the very latest information on ocean climate modelling and offer examples for a number of oceans and shelf seas. The book includes a critical analysis of literature on ocean climate variability modelling, as well as assessing the strengths and weaknesses of the best-known modelling techniques. It also anticipates future developments in the field, focusing on models based on a synthesis of numerical simulation and field observation, and on nonlinear thermodynamic model data synthesis.
Download or read book The Global Coastal Ocean Regional Studies and Syntheses written by Kenneth H. Brink and published by Harvard University Press. This book was released on 2005 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanology written by and published by . This book was released on 2005 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanography written by and published by . This book was released on 2002 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts written by and published by . This book was released on 1995-05 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Zentralblatt f r Mineralogie written by and published by . This book was released on 1995 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climatological Data written by and published by . This book was released on with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climatological Data written by United States. Environmental Data Service and published by . This book was released on 1974 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climatological Data for the United States by Sections written by and published by . This book was released on 1973-11 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt:
