Download or read book The Impact of Physical and Biological Properties on the Erodibility of Sediments Along the Western Adriatic Sea Italy written by Andrew W. Stevens and published by . This book was released on 2004 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: During two cruises in February and June of 2003, the erodibility of sediment along the western Adriatic Sea was measured using a "Gust erosion chamber". In addition, the surficial sediment properties were characterized through a suite physical and biological measurements including porosity, grain-size, inorganic carbon, organic carbon and colloidal carbohydrate. Comparisons were made between the sediment properties and erodibility to gain insight into the controls on sediment erodibility operating in the study area. Sediment erodibility along the western Adriatic sea varied both in time and space. Patterns of erodibility were governed primarily by physical factors in the wintertime and were possibly controlled by benthic biology in the summer. in particular, porosity and grain-size of surficial sediment were important factors controlling erodibility in the winter. In the summer, the controls on erodibility were variable, but evidence suggested that benthic microalgae were responsible for a decrease in sediment erodibility at one site. The possible impact of spatial changes in erodibility on patterns of sediment accumulation was explored. The results do not support the hypothesis that differences in erodibility are controlling where sediments accumulate along the western Adriatic sea.
Download or read book The Northern Adriatic Ecosystem written by Frank Kenneth McKinney and published by Columbia University Press. This book was released on 2007 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The northern Adriatic Sea is transient, most recently flooded between 18,000 to 6,000 years ago following the last glacial maximum, and it will drain again with the onset of the next glacial period. Despite its youth, uniformly shallow depth, and flat sediment floor, it hosts a broad range of bottom-dwelling sea life ecologically resembling communities that have existed in the shallow sea since the Ordovician Period, some 500 million years ago. The northern Adriatic is a natural laboratory in which to test hypotheses concerning the shift from the Paleozoic prevalence of stationary suspension-feeders living on the surface of the sediment and feeding from the overlying waters to, more recently, bottom-dwelling animals living dominantly in or actively seeking temporary refuge within the sediments of the sea floor, regardless of where they feed. Across the northern Adriatic Sea there is an ecological gradient from Paleozoic-style surface-dwelling communities in the east to "modern" communities living almost exclusively within the sediments in the west. Therefore, within the relatively small area of the northern Adriatic, there is an existing gradient similar to the profound ecological change from Paleozoic to more modern marine life. During the early twentieth century, life at the bottom of the Adriatic was systematically sampled from the east to the west coasts, revealing the most common animals and their distribution. In this book Frank K. McKinney combines these findings with more recent, local studies to understand better the ecological structure of the Adriatic's floor. Specifically, he uses the predation, sediment textures and deposition rates, currents, and nutrients of northern Adriatic bottom communities to evaluate hypotheses concerning the conditions that drove surface-dwelling animals to seek long-term refuge within sea floor sediment. Though the northern Adriatic has been well studied since the advent of the marine sciences, it is not widely known by paleontologists. With this volume, McKinney illuminates what this "living laboratory" can tell us about the evolution of multicellular life on Earth.
Download or read book Physical Oceanography of the Adriatic Sea written by Benoit Cushman-Roisin and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its centrallocation in the Old World, the Adriatic Sea has long been explored and studied. Modern methods of investigation, however, have accelerated the pace of study during the last decade. These are the ADCP currentmeter, satellite imagery, drifter technology, and, last but not least, the computer with its arsenal of tools for data analysis and model simulations. As a result of this renaissance, the Adriatic Sea and its sub-basins are currently the object of intensified scrutiny by a number of scientific teams, in Europe and be yond. Questions concerning the mesoscale variability that dominates regional motions, the seasonal circulation of the sea, and its long-term climatic role in the broader Mediterranean, have become topics of lively discussions. The time was ripe then when an international workshop dedicated to the physical oceanography of the Adriatic Sea was convened in Trieste on 21-25 September 1998. Its objectives were to assess the current knowledge of the oceanography of the Adriatic Sea, to review the newly acquired observations, to create syn ergy between model simulations and observations, and to identify directions for future Adriatic oceanography. This book, however,is not the mere proceedings of the workshop. It was written as a monograph synthetizing the current knowledge of the physical oceanography of the Adriatic Sea, with the hope that it will serve as a reference to anyone interested in the Adriatic. The book also identifies topics in need of additional inquiry and proposes research directions for the next decade.
Download or read book Ecosystems research report No 32 The Adriatic sea written by European Commission. Workshop on "Physical and biogeochemical processes in Adriatic Sea", Portonovo, Italy, 23 to 27 April 1996 and published by . This book was released on 1999 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CENAS written by Giuseppe Gambolati and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Upper Adriatic Sea basin comprises a very precarious coastal environment subject to continuous changes which prove appreciable not only over the geological scale but also in historical and modern times. According to some Authors the Venice Lagoon was formed 2000-3000 years ago, and other lagoons (e. g. the Grado Lagoon in the northernmost part of the Adriatic) are even more recent. In addition to lagoons, the Upper Adriatic coastal area includes salt and fresh-water marshes and reclaimed land separated by several watercourses originating from the Alpine and Apennine ranges with a ground elevation not exceeding in many places 2 m above the mean sea l. evel (msl). A significant fraction of this lowland is already now below msl because of natural and anthropogenic land subsidence, land reclamation and sea level rise occurred over the last century. Natural land subsidence is still under way as a result of deep downward tec tonic movement and consolidation of soils deposited in the most recent time. An thropogenic subsidence is primarily due to groundwater pumping for agricultural, industrial, civil, and tourist use, and to gas withdrawal from a large number of gas fields scattered through the Upper Adriatic basin, and may still continue, al though at a reduced rate, in the years to come. At the same time msl is expected to rise in the next century due to global climate change, mainly because of the greenhouse effect.
Download or read book Biogeochemical Cycling and Sediment Ecology written by J. Gray and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceanographic discontinuities (e. g. frontal systems, upwelling areas, ice edges) are often areas of enhanced biological productivity. Considerable research on the physics and biology of the physical boundaries defining these discontinues has been accomplished (see [I D. The interface between water and sediment is the largest physical boundary in the ocean, but has not received a proportionate degree of attention. The purpose of the Nato Advanced Research Workshop (ARW) was to focus on soft-sediment systems by identifying deficiencies in our knowledge of these systems and defining key issues in the management of coastal sedimentary habitats. Marine sediments play important roles in the marine ecosystem and the biosphere. They provide food and habitat for many marine organisms, some of which are commercially important. More importantly from a global perspective, marine sediments also provide "ecosystem goods and services" [2J. Organic matter from primary production in the water column and contaminants scavenged by particles accumulate in sediments where their fate is determined by sediment processes such as bioturbation and biogeochemical cycling. Nutrients are regenerated and contaminants degraded in sediments. Under some conditions, carbon accumulates in coastal and shelf sediments and may by removed from the carbon cycle for millions of years, having a potentially significant impact on global climate change. Sediments also protect coasts. The economic value of services provided by coastal areas has recently been estimated to be on the order of $12,568 9 10 y" [3J, far in excess of the global GNP.
Download or read book The Montenegrin Adriatic Coast written by Aleksandar Joksimović and published by Springer Nature. This book was released on 2021-06-23 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first of two volumes that together provide an integrated picture of the Montenegrin Adriatic coast, presenting the natural components of the system as well as the chemical composition and chemical processes in the extended area. This book describes the biology and ecology of the high seas of the Montenegrin coast, with a special focus on their biodiversity, flora and fauna, fisheries, mariculture, marine reptiles and mammals. The data has been collected through national and international projects over the last few decades and provides the reader with models and recommendations for the protection of this vital region of the Adriatic coast, as well as scientific recommendations for the sustainable use of its biological resources. Given the breadth and depth of its coverage, the book offers an invaluable source of information for researchers, students and environmental managers alike.
Download or read book Sediment Dynamics in the Western Adriatic Sea written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Montenegrin Adriatic Coast written by Danijela Joksimović and published by Springer Nature. This book was released on 2021-08-01 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second of two volumes that together provide an integrated picture of the Montenegrin Adriatic coast, presenting the natural components of the system as well as the chemical composition and chemical processes in the extended area. This book covers all aspects of marine chemistry such as the hydrographic and oceanographic characteristics of seawater, the toxicity of heavy metals in the marine environment, the quality of marinas and maritime areas, and the legal regime for protecting the marine environment from pollution. Given the breadth and depth of its coverage, the book offers an invaluable source of information for researchers, students and environmental managers alike.
Download or read book Physical Oceanography of the Adriatic Sea written by Benoit Cushman-Roisin and published by . This book was released on 2014-01-15 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Interactions Between Sediments and Water written by Brian Kronvang and published by Springer Science & Business Media. This book was released on 2007-04-05 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on sediments as a pollutant in natural freshwater and marine habitats, and sediments as a vector for the transfer of chemicals such as nutrients and contaminants. The selected papers cover three main topics: assessment and/or restoration of disturbed watersheds; sediment-water linkages in terrestrial and aquatic environments; evaluation of sediment and ecological changes in marine and freshwater habitats.
Download or read book 21 Pb Dating of Sediments from the Central and Northern Adriatic Sea written by and published by . This book was released on 1998 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lead-210 ({sup 21O}Pb) and organic C depth distribution profiles in sediments from the northern and central Adriatic Sea were measured as part of the EEC funded project on Eutrophic Limits of the Northern Adriatic (ELNA). 21°Pb derived mass-accumulation rates decrease southward from between 0.15 and 0.2 g cm−2y−1 close to the Po River outflow (> 24 m, water depth) to less than 0.04 g cm−2y−1 in the Jabuka Pit (246 m, water depth) in the central Adriatic Sea. The mass- accumulation rates obtained in the Jabuka Pit correspond to mean sedimentation rates of about 0.03 cm y−1 (ref. porosity = 0.5) and fall between 5 to 20 times lower than rates found for north Adriatic shelf cores. Estimated sedimentation rates are considered as upper limits because of the possible effects of bioturbation and physical disturbance on the {sup 21O}Pb sedimentary record but are consistent with data from previous work. Rates of sediment accumulation and carbon burial appear to be strongly influenced by the transport of fluvial materials from land and transport of fine-grained particles. First-order estimates of organic C burial rates into surface sediment ranged from 1 to 0.028 mMol cm−2y−1 between the Po delta and the Jabuka Pit regions, respectively. We estimate that a maximum of 50% of organic C preserved in surface sediment may be derived from biological production in the overlying water column.
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1992 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring and Understanding Biogenic Influences Upon Cohesive Sediment Stability in Intertidal Systems written by James Edward Saunders and published by . This book was released on 2008 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Quality and Impact Assessment of Pollutants written by Damia Barcelo and published by Elsevier. This book was released on 2006-09-29 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 1 of the Sustainable Management of Sediment Resources mini-series is the first attempt to fill many of these gaps in knowledge and also in practice. The volume includes sections on: - Sampling - Characterization of contaminants in sediments being bioavailability the main issue - Chemical analysis - Biological analysis - Effect directed analysis and toxicity - Identification evaluation - Benthos sediment quality assessment - Modelling of pollutant fate and behaviour - Sediment quality guidelines This first volume is applicable to a wide audience, from students at the graduate level, to experienced researchers and laboratory personnel in academia, industry and government. This volume also available as part of a 4-volume set, ISBN 0444519599. Discount price for set purchase. - A broad overview on sediment quality and impact assessment of pollutants - Suitable for both newcomers to the field of sediment treatment and specialists alike - Outlines practical examples of methods used in sediment quality analysis
Download or read book Physical and biogeochemical processes of the Adriatic sea written by Eutrophic Limits of the Northern Adriatic Final Conference integrating regional, national and international research with policy needs and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological and Inorganic Factors in the Destruction of Limestone Coasts written by Dr. Jürgen Schneider and published by . This book was released on 1976 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
