Download or read book Ecology of Harmful Algae written by E. Granéli and published by Springer Science & Business Media. This book was released on 2007-10-04 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmful algal can cause a variety of deleterious effects, including the poisoning of fish and shellfish, habitat disruptions for many organisms, water discoloration, beach fouling, and even toxic effects for humans. In this volume, international experts provide an in-depth analysis of harmful algae topics and offer a comprehensive synthesis of the latest research in the field.

Download or read book Algal Bloom and Its Economic Impact written by and published by . This book was released on 2016 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmful algal blooms (HABs) represent a natural phenomena caused by a mass proliferation of phytoplankton (cyanobacteria, diatoms, dinoflagellates) in waterbodies. Blooms can be harmful for the environment, human health and aquatic life due to the production of nocive toxins and the consequences of accumulated biomass (oxygen depletion). These blooms are occurring with increased regularity in marine and freshwater ecosystems and the reasons for their substantial intensification can be associated with a set of physical, chemical and biological factors including climate changes and anthropogenic impacts. Many bloom episodes have significant impacts on socio-economic systems. Fish mortality, illnesses caused by the consumption of contaminated seafood and the reluctance of consumers to purchase fish during HABs episodes represent only some of the economic impacts of HABs. The aim of this report is to evaluate the economic losses caused by HABs in different sectors.^This was achieved by collecting data that exist in the technical literature and group them into four categories: (1) human health impacts; (2) fishery impacts; (3) tourism and recreation impacts; (4) monitoring and management costs. The data analysed refer to both marine and freshwater HABs. Among the sectors examined in this study, human health impacts appear less investigated than the other three categories. This is probably caused by the difficulty to assess the direct effects of toxins on human health because of the wide range of symptoms they can induce. Looking at the data, the interest in mitigating the economic losses associated with blooms is particularly demonstrated by studies aimed to develop monitoring and management strategies to reduce HABs episodes. Indeed, the water monitoring, when accompanied by appropriate management actions, can assure the mitigation of ongoing HABs and the reduction of negative impacts.^During data collection, it has been more difficult to find economic data about blooms in Europe than in United States of America (USA). A reason may be the lack of European reports or publically available data about HABs and their socio-economic impacts. Much studies still have to be performed in this field, but the reported increase in HABs frequency will surely increase not only scientific analysis about HABs but also economic studies to report whether safeguards taken have succeeded in mitigating the economic impact associated with blooms.

Download or read book Estimated Annual Economic Impacts from Harmful Algal Blooms HABs in the United States written by Donald M. Anderson and published by . This book was released on 2000 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blooms of toxic or harmful microalgae, commonly called "red tides," represent a significant - and expanding threat to human health and fisheries resources throughout the United States and the world. These phenomena take many forms, ranging from massive accumulations of cells that discolor the water to dilute, inconspicuous, but highly toxic populations. Ecological, aesthetic, and public health impacts include: mass mortalities of wild and farmed fish and shellfish; human intoxication and death from the consumption of contaminated shellfish or fish; alterations of marine food webs through adverse effects on larvae and other life history stages of commercial fish species; the noxious smell and appearance of algae accumulated in nearshore waters or deposited on beaches; and mass mortalities of marine mammals, seabirds, and other animals. Many harmful algal blooms (HABs) have significant economic impacts. Shellfish closures, wild or farmed fish mortalities, and scared consumers who avoid seafood are well-recognized impacts of major HABs. While adverse health effects and lost sales of fish and shellfish products are direct costs, constrained development or investment decisions in coastal aquaculture due to the threat from outbreaks of toxic algae are examples of poorly understood or poorly quantified indirect or hidden costs. Lost marine recreational opportunities also are a significant cost of harmful algal bloom incidents. HABs have increased steadily in both species complexity and geographical extent over the last several decades. In turn, the range of harmful effects and the magnitude of economic costs have also widened. This report provides the first comprehensive estimate of the economic impacts of HABs in the United States, focusing on both direct and indirect costs.

Download or read book Harmful Algal Blooms written by Sandra E. Shumway and published by John Wiley & Sons. This book was released on 2018-08-06 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmful Algal Blooms: A Compendium Desk Reference provides basic information on harmful algal blooms (HAB) and references for individuals in need of technical information when faced with unexpected or unknown harmful algal events. Chapters in this volume will provide readers with information on causes of HAB, successful management and monitoring programs, control, prevention, and mitigation strategies, economic consequences of HAB, associated risks to human health, impacts of HAB on food webs and ecosystems, and detailed information on the most common HAB species. Harmful Algal Blooms: A Compendium Desk Reference will be an invaluable resource to managers, newcomers to the field, those who do not have easy or affordable access to scientific literature, and individuals who simply do not know where to begin searching for the information needed, especially when faced with novel and unexpected HAB events. Edited by three of the world's leading harmful algal bloom researchers and with contributions from leading experts, Harmful Algal Blooms: A Compendium Desk Reference will be a key source of information for this increasingly important topic.

Download or read book Marine Pelagic Cyanobacteria Trichodesmium and other Diazotrophs written by E.J. Carpenter and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planktonic marine cyanobacteria are abundant and significant in the biogeochemistry of the sea. This volume focuses on the filamentous cyanobacteria, particularly those in the genus Trichodesmium which are common in tropical and subtropical seas. A portion of this book also concerns bloom-forming cyanobacteria in the Baltic Sea area. Filamentous cyanobacteria are important as primary producers and for the fixation of atmospheric nitrogen and thus are significant in global cycling of both of these elements. In recent years, through the application of new techniques and intensive multi-disciplinary research programs, progress has been made in understanding both the biology of these cyanobacteria and their place in the marine food web. A broad range of topics is covered in this book, ranging from molecular biology, physiology, ultrastructure, enzyme localization, toxicology, remote sensing, buoyancy, herbivory and the ecology of these organisms in the marine food web. This volume is an outgrowth of a NATO-sponsored meeting held in May 1991 in Bamberg, Germany, and represents the latest synthesis on these marine phytoplankters.

Download or read book Guidelines on recreational water quality Volume 1 written by World Health Organization and published by World Health Organization. This book was released on 2021-07-12 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of coastal, estuarine and freshwater recreational environments has significant benefits for health and well-being, including rest, relaxation, exercise, cultural and religious practices, and aesthetic pleasure, while also providing substantial local, regional and national economic benefits. These guidelines focus on water quality management for coastal and freshwater environments to protect public health. The guidelines: 1. describe the current state of knowledge about the possible adverse health impacts of various forms of water pollution; and2. set out recommendations for setting national health-based targets, conducting surveillance and risk assessments, putting in place systems to monitor and control risks, and providing timely advice to users on water safety.These guidelines are aimed at national and local authorities, and other entities with an obligation to exercise due diligence relating to the safety of recreational water sites. They may be implemented in conjunction with other measures for water safety (such as drowning prevention and sun exposure) and measures for environmental protection of recreational water use sites.

Download or read book Toxic Cyanobacteria in Water written by Ingrid Chorus and published by CRC Press. This book was released on 2021-03-08 with total page 701 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacterial toxins are among the hazardous substances most widely found in water. They occur naturally, but concentrations hazardous to human health are usually due to human activity. Therefore, to protect human health, managing lakes, reservoirs and rivers to prevent cyanobacterial blooms is critical. This second edition of Toxic Cyanobacteria in Water presents the current state of knowledge on the occurrence of cyanobacteria and cyanotoxins as well as their impacts on health through water-related exposure pathways, chiefly drinking-water and recreational activity. It provides scientific and technical background information to support hazard identification, assessment and prioritisation of the risks posed by cyanotoxins, and it outlines approaches for their management at each step of the water-use system. It sets out key practical considerations for developing management strategies, implementing efficient measures and designing monitoring programmes. This enables stakeholders to evaluate whether there is a health risk from toxic cyanobacteria and to mitigate it with appropriate measures. This book is intended for those working on toxic cyanobacteria with a specific focus on public health protection. It intends to empower professionals from different disciplines to communicate and cooperate for sustainable management of toxic cyanobacteria, including public health workers, ecologists, academics, and catchment and waterbody managers. Ingrid Chorus headed the department for Drinking-Water and Swimming-Pool Hygiene at the German Environment Agency. Martin Welker is a limnologist and microbiologist, currently with bioMérieux in Lyon, France.

Download or read book Harmful Algal Blooms HABs in Latin America written by Marius Nils Müller and published by Frontiers Media SA. This book was released on 2020-03-20 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biology of Cyanobacteria written by N. G. Carr and published by Univ of California Press. This book was released on 1982-01-01 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cyanobacterial Harmful Algal Blooms State of the Science and Research Needs written by H. Kenneth Hudnell and published by Springer Science & Business Media. This book was released on 2008-03-13 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the ever-increasing incidence of harmful cyanobacterial algal blooms, this monograph has added urgency and will be essential reading for all sorts of researchers, from neuroscientists to cancer research specialists. The volume contains the proceedings of the 2005 International Symposium on Cyanobacterial Harmful Algal Blooms, and has been edited by H. Kenneth Hudnell, of the US Environmental Protection Agency. It contains much of the most recent research into the subject.

Download or read book Global Ecology and Oceanography of Harmful Algal Blooms written by Patricia M. Glibert and published by Springer. This book was released on 2018-04-26 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmful algal blooms (HABs) - blooms that cause fish kills, contaminate seafood with toxins, or cause human or ecological health impacts and harm to local economies - are occurring more often, in more places and lasting longer than in past decades. This expansion is primarily the result of human activities, through increased nutrient inputs and various aspects of climate change. The Global Ecology and Oceanography of Harmful Algal Blooms (GEOHAB) programme promoted international collaboration to understand HAB population dynamics in various oceanographic regimes and to improve the prediction of HABs. This volume introduces readers to the overarching framework of the GEOHAB programme, factors contributing to the global expansion of harmful algal blooms, the complexities of HABs in different habitats, and the forward-looking issues to be tackled by the next generation of GEOHAB, GlobalHAB. The programme brought together an international team of contributing scientists and ecosystem managers, and its outcomes will greatly benefit the international research community.

Download or read book Inland Waters written by Adam Devlin and published by BoD – Books on Demand. This book was released on 2021-02-10 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inland waters, lakes, rivers, and their connected wetlands are the most important and the most vulnerable sources of freshwater on the planet. The ecology of these systems includes biology as well as human populations and civilization. Inland waters and wetlands are highly susceptible to chemical and biological pollutants from natural or human sources, changes in watershed dynamics due to the establishment of dams and reservoirs, and land use changes from agriculture and industry. This book provides a comprehensive review of issues involving inland waters and discusses many worldwide inland water systems. The main topics of this text are water quality investigation, analyses of the ecology of inland water systems, remote sensing observation and numerical modeling methods, and biodiversity investigations.

Download or read book Opportunities for Environmental Applications of Marine Biotechnology written by National Research Council and published by National Academies Press. This book was released on 2000-11-30 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2-day workshop is the culmination of a study of the status and future of marine biotechnology. The overall goal of this workshop is to examine what was initially called "Opportunities for Marine Biotechnology in the United States," to consider where we are now in this field of "Environmental Marine Biotechnology," to envision the field in the future, and to discuss any impediments that might be encountered along the way. Opportunities for Environmental Applications of Marine Biotechnology: Proceedings of the October 5-6, 1999, Workshop addresses the question of where the federal government should invest its limited funds and what future initiatives should be planned.

Download or read book Marine Algal Bloom Characteristics Causes and Climate Change Impacts written by Santosh Kumar Sarkar and published by Springer. This book was released on 2018-05-02 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the marine environment, single-celled, microscopic, plant-like organisms naturally occur in the well-lit surface layer of any body of water. These organisms, referred to as phytoplankton or microalgae, form the base of the food web upon which nearly all other marine organisms depend. Algal bloom is a rapid increase in or accumulation of the population of about 300 species of algae due to excess nutrients (eutrophication), and is of major global interest as it causes reduction in species diversity, abrupt changes in water quality, and discoloration of the water (green, yellow, brown or red) depending on the species of algae and the type of pigments they contain. Dying blooms can also be an environmental concern as when the cells sink and decay, bacteria break down the organic material, which in turn strips oxygen from the water. This microbial oxygen demand at times leads to very low oxygen levels in the bottom waters, harming aquatic life. Documentation of this sporadic high abundance of algae, together with the significant species richness of the diatoms, requires comprehensive studies in the Sundarban coastal environment, which is facing severe degradation due to natural & anthropogenic stressors. In addition, a better understanding of the effects of algal blooms on seafood quality, the complex biological, chemical and physical interactions and subsequent effects on trophodynamics is needed to develop strategies for effective coastal zone management. The book discusses the occurrence of harmful algal blooms (HABs) caused by the dinoflagellates of the genus Alexandrium and Karenia, or diatoms of the genus Pseudo-nitzschia, which have large and varied impacts on marine ecosystems (such as large-scale marine mortality events that have been associated with various types of shellfish poisonings) depending on the species involved, the environment where they are found, and the mechanism by which they exert negative effects. HABs represent a major environmental problem in all regions of the U.S., and their occurrence is on the rise due to increased nutrient pollution. HABs have severe impacts on human health, aquatic ecosystems, and the economy. Such blooms, known colloquially as red tides due to their red or brown hues, are increasing in frequency and magnitude worldwide as a result of changes in oceanic climate, increased coastal eutrophication and enhanced long-distance dispersal in ballast water. As such, the book offers an in-depth account of the complex biological, chemical and physical interactions of the algal blooms (both innocuous and harmful ones). It also discusses the highly topical issue of the impact of global climate change on the frequency and severity of HABs in the context of alterations in temperature, stratification, light and ocean acidification. Focusing on both basic and applied limnology, this book is a reliable and up-to-date reference resource for students, teachers and researchers engaged in the field of coastal research/management at regional and global scales.

Download or read book Estimated Annual Economic Impacts from Harmful Algal Blooms HABs in the United States written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Funding was provided by the National Oceanic and Atmospheric Administration under Grants No. NA46RG0470 and NA90AA-D-SG480, the National Science Foundation under Grant No. OCE-9321244, and the Johnson Endowment of the Marine Policy Center.

Download or read book Marine Biotoxins written by Fao and published by Daya Books. This book was released on 2007 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides an extensive review of different aspects of five shellfish-poisoning syndromes (paralytic, diarrhoeic, amnesic, neurologic and azapiracid), as well as one fish-poisoning syndrome (ciguatera fish poisoning). It discusses in detail the causative toxins produced by marine organisms, chemical structures and analytical methods, habitat and occurrence of the toxin-producing organisms, case studies and existing regulations. Based on this analysis, risk assessments are carried out for each of the toxins, and recommendations are elaborated to improve the management of these risks in order to reduce the harmful effects of these toxins on public health. Contents Chapter 1: Introduction; Chapter 2: Paralytic Shellfish Poisoning (PSP); Chemical structures and properties, Methods of analysis, Source organism(s) and habitat, Occurrence and accumulation in seafood, Toxicity of PSP toxins, Prevention of PSP intoxication, Cases and outbreaks of PSP, Regulations and monitoring; Chapter 3: Diarrhoeic Shellfish Poisoning (DSP); Chemical structures and properties, Methods of analysis, Source organism(s) and habitat, Occurrence and accumulation in seafood, Toxicity of DSP toxins, Prevention of DSP intoxication, Cases and outbreaks of DSP, Regulations and monitoring; Chapter 4: Amnesic Shellfish Poisoning (ASP); Chemical structures and properties, Methods of analysis, Source organism(s) and habitat, Occurrence and accumulation in seafood, Toxicity of ASP toxins, Prevention of ASP toxins, Prevention of ASP intoxication, Cases and outbreaks of ASP, Regulations and monitoring; Chapter 5: Neurologic Shellfish Poisoning (NSP); Chemical structures and properties, Methods of analysis, Source organism(s) and habitat, Occurrence and accumulation in seafood, Toxicity of NSP toxins, Prevention of NSP intoxication, Cases and outbreaks of NSP, Regulations and monitoring; Chapter 6: Azaspiracid Shellfish Poisoning (AZP); Chemical structures and properties, Methods of analysis, Source organism(s) and habitat, Occurrence and accumulation in seafood, Toxicity of AZP toxins, Prevention of AZP intoxication, Cases and outbreaks of AZP, Regulations and monitoring; Chapter 7: Ciguatera Fish Poisoning (CFP); Chemical structures and properties of ciguatoxins, Methods of analysis, Source organism(s), habitat and distribution, Occurrence and accumulation in seafood, Toxicity of CFP toxins, Prevention of CFP intoxication, Cases and outbreaks of CFP, Regulations and monitoring; Chapter 8: Risk Assessment; Risk assessment for paralytic shellfish poisoning (PS), Risk assessment for diarrhoeic shellfish poisoning (DSP), Risk assessment for Amnesic shellfish poisoning (ASP), Risk assessment for neurologic shellfish poisoning (NSP), Risk assessment for azaspiracid shellfish poisoning (AZP), Risk assessment for ciguatera fish poisoning (CFP); Chapter 9: Conclusions and Recommendations; Conclusions, Recommendations.

Download or read book Red Tides written by Tomotoshi Okaichi and published by Springer Science & Business Media. This book was released on 2004-06-04 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines large-scale outbreaks of red tide along coastal areas, which is associated with fish and shellfish mass mortalities through poisoning. This book discusses the red tide phenomena throughout the world, including biological research results on taxonomy of cyst and vegetative cells of red tide organisms and ecological and physiological studies using ecological modeling.