Download or read book Oxidative Stress in Aquatic Ecosystems written by Doris Abele and published by John Wiley & Sons. This book was released on 2011-11-03 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reactive oxygen species (ROS) are increasingly appreciated as down-stream effectors of cellular damage and dysfunction under natural and anthropogenic stress scenarios in aquatic systems. This comprehensive volume describes oxidative stress phenomena in different climatic zones and groups of organisms, taking into account specific habitat conditions and how they affect susceptibility to ROS damage. A comprehensive and detailed methods section is included which supplies complete protocols for analyzing ROS production, oxidative damage, and antioxidant systems. Methods are also evaluated with respect to applicability and constraints for different types of research. The authors are all internationally recognized experts in particular fields of oxidative stress research. This comprehensive reference volume is essential for students, researchers, and technicians in the field of ROS research, and also contains information useful for veterinarians, environmental health professionals, and decision makers.
Download or read book Pollution and Fish Health in Tropical Ecosystems written by Eduardo Alves de Almeida and published by CRC Press. This book was released on 2013-12-13 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tropical zone contains the highest diversity of fish species on the planet. Many of these species are being continuously exposed to pollutants that pose serious hazards to fish health thereby posing serious risks for entire fish populations. This book presents information about the different responses of fish to pollutants from the molecular levels to changes in behavior, with emphasis on tropical species. It also discusses current topics such as the adverse effects of emerging compounds like nanoparticles and endocrine disruptor chemicals.
Download or read book Oxidative Stress in Aquatic Organisms written by Bo Liu and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Robust stress from the external environment does not only induce severe oxidative stress for aquatic animals, but also restricts the health and sustainable development of aquaculture. Oxidative stress is ubiquitous in aquatic animals, and excessive oxidative stress could induce cell and tissue damage. These phenomena manifest primarily as DNA hydroxylation, protein denaturation, lipid peroxidation and cell apoptosis. In general, endogenous and exogenous factors are the main elements that induce oxidative stress, including temperature, oxygen, life history, nutrition, food deprivation, industrial and agricultural pollutants. This Special Issue highlights and discusses the causes of oxidative stress, elucidates the underlying physiological mechanisms, and develops antioxidant resistance strategies that are of great importance for the development of aquaculture. More importantly, this Special Issue offers fresh perspectives on the expanding knowledge related to and research possibilities in the creation of antioxidant resistance in aquaculture.
Download or read book UV Effects in Aquatic Organisms and Ecosystems written by E Walter Helbling and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers extensive coverage of the most important aspects of UVR effects on all aquatic (not just freshwater and marine) ecosystems, encompassing UV physics, chemistry, biology and ecology. Comprehensive and up-to-date, UV Effects in Aquatic Organisms and Ecosystems aims to bridge the gap between environmental studies of UVR effects and the broader, traditional fields of ecology, oceanography and limnology. Adopting a synthetic approach, the different sections cover: the physical factors controlling UVR intensity in the atmosphere; the penetration and distribution of solar radiation in natural waters; the main photochemical process affecting natural and anthropogenic substances; and direct and indirect effects on organisms (from viruses, bacteria and algae to invertebrate and vertebrate consumers). Researchers and professionals in environmental chemistry, photochemistry, photobiology and cell and molecular biology will value this book, as will those looking at ozone depletion and global change.
Download or read book Fish Ecotoxicology written by Thomas Braunbeck and published by Springer Science & Business Media. This book was released on 1998 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: In modern ecotoxicology, fish have become the major vertebrate model, and a tremendous body of information has been accumulated. This volume attempts to summarize our present knowledge in several fields of primary ecotoxicological interest ranging from the use of (ultra)structural modifications of selected cell systems as sources of biomarkers for environmental impact over novel approaches to monitoring the impact of xenobiotics with fish in vitro systems such as primary and permanent fish cell cultures, the importance of early life-stage tests with fish, the bioaccumulation of xenobiotics in fish, the origin of liver neoplastic lesions in small fish species, immunocytochemical approaches to monitoring effects in cytochrome P450-related biotransformation, the impact of heavy metals in soft water systems, the environmental toxicology of organotin compounds, oxidative stress in fish by environmental pollutants to effects by estrogenic substances in aquatic systems.
Download or read book Oxidative Stress in the Aquatic Environment Effects of Hypoxia and Polychlorinated Biphenyls in Fish and Bivalve Molluscs written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative damage is hypothesized to be an underlying cause of many chronic disease states. Acutely, oxidative damage can lead to irreversible cell injury and pathological consequences. Reactive oxygen species, while naturally occurring at low levels in biological systems, can also be brought about by severe environmental conditions such as hypoxia or by chemical contaminants. This body of work encompasses two different areas of toxicological research into the generation of radical species and the resulting oxidative damage to organisms. The first section deals with hypoxia as a causative factor in epizootic ulcerative syndrome (EUS) in Atlantic menhaden (Brevoortia tyrannus) in the estuaries of the Atlantic coast. Menhaden have a fairly large impact on the coastal environment and on tourism for the state, being integral to food webs of the estuary, coastal shelf, and an indicator of environmental degradation. Our hypothesis was that environmental exposure to hypoxic conditions in the estuaries leads to oxidative stress in Menhaden sufficient to cause tissue damage. Specific objectives of the study were two-fold: Determination of LC50 levels for both Atlantic Menhaden and the hypoxia tolerant species, Nile Tilapia (Oreochromis niloticus), at both acute (2 hour) and medium term (96 hours) exposures to hypoxia. Results indicated that tilapia have a very high tolerance and adaptability to hypoxic conditions. We could not ascertain an LC50 for tilapia as at 0.24 mgD (3% saturation) we saw only 28% mortality at 2 hours. Ca++ and K+ were the only ionic alterations to blood chemistry due to exposure. Menhaden had an LC50 of 1.2 mgD (16% saturation) dissolved oxygen (at 28 ppt salinity) over 1 hour and had blood chemistry dysregulation affecting Ca++, K+, Na+, and glucose levels. In the 96 hour exposures, no alterations in lipid peroxidation, glutathione, lipid soluble antioxidants, or strand breakage were detected indicating that hypoxia and reperfusion were n.
Download or read book Freshwater Pollution and Aquatic Ecosystems written by Gowhar Hamid Dar and published by CRC Press. This book was released on 2021-12-22 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume addresses the environmental impacts of pollution on freshwater aquatic ecosystems and presents sustainable management and remediation practices and advanced technology help to address the different types of pollutants. Freshwater Pollution and Aquatic Ecosystems: Environmental Impact and Sustainable Management considers the need for sustainable, efficient, and cost-effective tools and technologies to assess, monitor, and properly manage the increasing issues of aquatic pollution. It provides detailed accounts of the phenomena and mechanisms related to aquatic pollution and highlights the problems and threats associated with pollution contamination in freshwater. It provides useful insight into the sustainable and advanced pollution remediation technology adopted by different countries for the monitoring, assessment, and sustainable management of pollution. The chapters in the volume evaluate the sources of harmful pollutants, which include industrial effluents, sewage, and runoff from agricultural industries, which result in toxic microbes, organic waste, oils, and high load of nutrients. Unsustainable management practices of domestic sewage and indiscriminate use of chemical pesticides lead to the technological disturbance of aquatic biota. In addition to harming aquatic biota, these pollutants find their way into the human body through inhalation, ingestion, or absorption and finally tend to bio-accumulate in trophic levels of the food chain, which poses a major risk to human beings. This book will be a valuable resource for ecologists, environmentalists, scientists, and many others for their work in understanding and management of aquatic pollutants in freshwater biospheres.
Download or read book Aquatic Toxicology in Freshwater written by Muhammed Atamanalp and published by Springer Nature. This book was released on with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxidative Stress and Hormesis in Evolutionary Ecology and Physiology written by David Costantini and published by Springer Science & Business Media. This book was released on 2014-03-27 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses oxidative stress and hormesis from the perspective of an evolutionary ecologist or physiologist. In the first of ten chapters, general historical information, definitions, and background of research on oxidative stress physiology, hormesis, and life history are provided. Chapters 2-10 highlight the different solutions that organisms have evolved to cope with the oxidative threats posed by their environments and lifestyles. The author illustrates how oxidative stress and hormesis have shaped diversity in organism life-histories, behavioral profiles, morphological phenotypes, and aging mechanisms. The book offers fascinating insights into how organisms work and how they evolve to sustain their physiological functions under a vast array of environmental conditions.
Download or read book The Ecotoxicology of Aquatic Macrophytes written by Mirta L. Menone and published by Springer Nature. This book was released on 2023-05-31 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the topic of ecotoxicology of aquatic macrophytes and is wide ranging, including the use of macrophytes for remediation of contaminated sites. Many human activities are threats to the equilibrium of natural ecosystems. Pollution from point and non-point sources can be assessed using a variety of techniques, such as biomonitoring, biomarkers and biosensors. In aquatic ecosystems, biomonitoring of pollutants is mostly conducted by analysis of the tissues of invertebrates and fishes, and biomarker studies are also more widely applied to animals rather than in plants. Aquatic macrophytes occupy a key niche in aquatic ecosystems and provide a range of ecosystem services. In addition to their role in primary production, vegetation plays a key role in the cycling and retention of nutrients and generally acts as a sink for pollutants. Therefore, because of their importance to aquatic ecosystems, more attention should be paid to understanding the fate of pollutants and to developing methods to evaluate the health status of macrophytic plants in freshwater, marine and estuarine environments.
Download or read book Oxidative Stress written by Volodymyr Lushchak and published by BoD – Books on Demand. This book was released on 2012-05-02 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the numerous applications of oxidative stress theory in effects of environmental factors on biological systems. The topics reviewed cover induction of oxidative stress by physical, chemical, and biological factors in humans, animals, plants and fungi. The physical factors include temperature, light and exercise. Chemical induction is related to metal ions and pesticides, whereas the biological one highlights host-pathogen interaction and stress effects on secretory systems. Antioxidants, represented by a large range of individual compounds and their mixtures of natural origin and those chemically synthesized to prevent or fix negative effects of reactive species are also described in the book. This volume will be a useful source of information on induction and effects of oxidative stress on living organisms for graduate and postgraduate students, researchers, physicians, and environmentalists.
Download or read book Oxidative Stress in the Aquatic Environment written by Daniel Wade Lehmann and published by . This book was released on 2006 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: PCB, hypoxia, oxidative stress, bivalve, fish.
Download or read book Aquatic Toxicology Research Focus written by Elias P. Svensson and published by Nova Publishers. This book was released on 2008 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic toxicology is the study of the effects of manufactured chemicals and other anthropogenic and natural materials and activities on aquatic organisms at various levels of organization, from subcellular through individual organisms to communities and ecosystems. This book presents the latest research in this field from around the globe.
Download or read book Antioxidants and Functional Components in Aquatic Foods written by Hordur G. Kristinsson and published by John Wiley & Sons. This book was released on 2014-04-15 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidants and Functional Components in Aquatic Foods compiles for the first time the past and present research done on pro and antioxidants in aquatic animals. The book addresses an area of extreme importance for aquatic foods, since lipid oxidation leads to such a large number of quality problems. Many of these problems are also seen in other muscle based foods, but are exaggerated in aquatic foods, so the book’s contents will be of great use and interest to other fields. Written by top researchers in the field, the book offers not only general overviews of lipid oxidation in aquatic foods and aquatic food pro and antioxidant systems, but also covers specifics and gives the latest information on the key pro and anti-oxidants derived from aquatic foods as well as some of the most recent and innovative means to control lipid oxidations in aquatic foods and food systems with fish oils. Coverage includes the latest research on the effects aquatic foods have on oxidative stress in the human body, an area of great interest recently. Additionally, a chapter is devoted to the latest techniques to measure antioxidative potential of aquatic foods, an area still in development and one very important to the antioxidant research community. Antioxidants and Functional Components in Aquatic Foods will be of great interest to the food science, medical, biochemical and pharmaceutical fields for professionals who deal with aquatic food products, muscle foods products (beef, pork, poultry etc), lipid oxidation, and pro-oxidant and antioxidant systems.
Download or read book Biological Indicators of Aquatic Ecosystem Stress written by S. Marshall Adams and published by . This book was released on 2002 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The main purpose of this book is to provide a comprehensive reference and guide relative to the various biological endpoints that can be measured and used to assess the effects of environmental stressors on aquatic organisms, populations, and communities" -- p.3.
Download or read book The ELSI Handbook of Nanotechnology written by Chaudhery Mustansar Hussain and published by John Wiley & Sons. This book was released on 2020-03-31 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook focuses on the recent advancements in Safety, Risk, Ethical Society and Legal Implications (ESLI) as well as its commercialization of nanotechnology, such as manufacturing. Nano is moving out of its relaxation phase of scientific route, and as new products go to market, organizations all over the world, as well as the general public, are discussing the environmental and health issues associated with nanotechnology. Nongovernmental science organizations have long since reacted; however, now the social sciences have begun to study the cultural portent of nanotechnology. Societal concerns and their newly constructed concepts, show nanoscience interconnected with the economy, ecology, health, and governance. This handbook addresses these new challenges and is divided into 7 sections: Nanomaterials and the Environment; Life Cycle Environmental Implications of Nanomanufacturing; Bioavailability and Toxicity of Manufactured Nanoparticles in Terrestrial Environments; Occupational Health Hazards of Nanoparticles; Ethical Issues in Nanotechnology; Commercialization of Nanotechnology; Legalization of Nanotechnology.
Download or read book Xenobiotics in Aquatic Animals written by Mohd Ashraf Rather and published by Springer Nature. This book was released on 2023-05-10 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the latest understanding of the impact of xenobiotics on the developmental and reproductive processes of aquatic animals, particularly nektonic forms, which comprise an important group of aquatic ecosystems. Aquaculture is quickly becoming the largest contributor of fish protein for human consumption. As the aquaculture business expands, farmed fish will be exposed to more environmental toxins, necessitating the use of chemical therapeutic drugs for fish. This book brings together experts on the regulation of environmental toxins and food chemicals from around the world, as well as researchers looking into the metabolism and disposal of foreign chemicals (xenobiotics) in fish species. The impact of xenobiotics on reproductive and developmental biology of all living forms has become of prime importance at the current time. As the effect of these xenobiotics on aquatic animals is an emerging area for research and development, several groups across the world are working on these aspects, targeting different groups of fishes in both marine and freshwater ecosystems. This collective work highlights several key and updated recent aspects of different types of xenobiotics entering aquatic ecosystems, impacts of these agents on reproductive physiology, developmental biology, breeding biology, hormonal imbalance, aquatic ecology, and pollution on the aquatic ecosystem. The unique aggregation of different types of stressors to aquatic animals under a single volume will be a useful reference for readers, including scientists, teachers, students, researchers and policymakers and those involved in aquaculture and environment conservation.
