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Books > Earth & environment > Geography > Physical geography > Deltas, estuaries, coastal regions

Wild Catalina Island - Natural Secrets and Ecological Triumphs (Paperback): Frank J. Hein, Carlos de La Rosa Wild Catalina Island - Natural Secrets and Ecological Triumphs (Paperback)
Frank J. Hein, Carlos de La Rosa
R544 R456 Discovery Miles 4 560 Save R88 (16%) Ships in 10 - 15 working days

A year-round escape for one million annual tourists, Catalina Island is gaining popularity as a world-class eco-destination. Eighty-eight percent of the island is under the watch of the Catalina Island Conservancy, which preserves, manages and restores the island's unique wild lands. Bison, foxes and bald eagles are its best-known inhabitants, but Catalina is home to more than sixty other animal and plant species that exist nowhere else on earth. And they are all within the boundaries of one of the world's most populous regions: Los Angeles County. Biologists Frank Hein and Carlos de la Rosa present a highly enjoyable tour through the fascinating origins, mysterious quirks and ecological victories of one of the West Coast's most remarkable places.

Norfolk's Fragile Coast - Sidestrand to Snettisham (Hardcover): Claire Davies Norfolk's Fragile Coast - Sidestrand to Snettisham (Hardcover)
Claire Davies
R628 Discovery Miles 6 280 Ships in 12 - 17 working days

Norfolk's Fragile Coast is a photographic journey from the unstable and spectacular cliffs of Sidestrand to the fossil rich beaches of East and West Runton, to bird reserves, marshes, expanses of sand, through the sailing and vacation areas of the Burnhams to the bleakness of Snettisham on the Wash. Claire Davies has captured this diversity, zooming in on the tiniest bird and out to the wild and spectacular expanses of coastline. This photographic project - mostly carried out through the Covid-19 pandemic in 2020 - not only captures a constantly changing landscape with beautiful imagery - spectacular cliffs, fossil rich beaches, marshes, seascapes, birds, flora and fauna, parkland and countryside - but along with the accompanying narrative and diary notes, establishes an important record of a coast in all its variety at a moment of exceptional and unique timing.

The Gathering Tide (Paperback, New edition): Karen Lloyd The Gathering Tide (Paperback, New edition)
Karen Lloyd
R309 Discovery Miles 3 090 Ships in 12 - 17 working days

"Evocative, muscular." - Kathleen Jamie. Karen Lloyd takes us on a deeply personal journey around the 60 miles of coastline that make up 'nature's amphitheatre'. Embarking on a series of walks that take in beguiling landscapes and ever-changing seascapes, Karen tells the stories of the places, people, wildlife and history of Morecambe Bay. So we meet the King's Guide to the Sands, discover forgotten caves and islands that don't exist, and delight in the simple beauty of an oystercatcher winging its way across the ebbing tide. As we walk with Karen, she explores her own memories of the bay, making an unwitting pilgrimage through her own past and present, as well as that of the bay. The result is a singular and moving account of one of Britain's most alluring coastal areas.

'sconset (Hardcover): Rob Benchley, Richard Trust 'sconset (Hardcover)
Rob Benchley, Richard Trust
R687 Discovery Miles 6 870 Ships in 12 - 17 working days
State of Disaster - A Historical Geography of Louisiana's Land Loss Crisis (Hardcover): Craig E. Colten State of Disaster - A Historical Geography of Louisiana's Land Loss Crisis (Hardcover)
Craig E. Colten
R1,086 Discovery Miles 10 860 Ships in 10 - 15 working days

State of Disaster: A Historical Geography of Louisiana's Land Loss Crisis explores Louisiana's protracted efforts to restore and protect its coastal marshes, nearly always with minimal regard for the people displaced by those efforts. As Craig E. Colten shows, the state's coastal restoration plan seeks to protect cities and industry but sacrifices the coastal dwellers who have maintained their presence in this perilous place for centuries. This historical geography examines in turn the adaptive capacity of those living through repeated waves of calamity; the numerous disjointed environmental management regimes that contributed to the current crisis; the cartographic visualizations of land loss used to activate public coastal policy; and the phases of public input that nevertheless failed to give voice to the citizens most impacted by various environmental management strategies. In closing, Colten situates Louisiana's experience within broader discussions of climate change and recovery from repeated crises.

Coastal South Carolina Fish and Game - History, Culture and Conservation (Hardcover): James O. Luken Coastal South Carolina Fish and Game - History, Culture and Conservation (Hardcover)
James O. Luken
R653 Discovery Miles 6 530 Ships in 12 - 17 working days
Wild Miami - Explore the Amazing Nature in and Around South Florida (Paperback): Tj Morrell, Shannon Jones, Brian Diaz,... Wild Miami - Explore the Amazing Nature in and Around South Florida (Paperback)
Tj Morrell, Shannon Jones, Brian Diaz, Fernando Bretos
R668 R568 Discovery Miles 5 680 Save R100 (15%) Ships in 10 - 15 working days
The Bahia Blanca Estuary - Ecology and Biodiversity (Hardcover, 1st ed. 2021): Sandra M. Fiori, Paula D Pratolongo The Bahia Blanca Estuary - Ecology and Biodiversity (Hardcover, 1st ed. 2021)
Sandra M. Fiori, Paula D Pratolongo
R4,585 Discovery Miles 45 850 Ships in 10 - 15 working days

The Bahia Blanca Estuary is one of the largest coastal systems in Atlantic South America. This mesotidal estuary, situated in a sharp transition between humid subtropical and semiarid climates, has a unique combination of large interannual climatic variations. The estuarine area encompasses roughly 2300 square kilometers and is composed of wide expanses of intertidal flats, salt marshes, and emerged islands, which create intricate landscape patterns. Natural environments in the estuary sustain a high concentration of marine and terrestrial species, including endemic, threatened, and endangered fish and shorebirds. Puerto Cuatreros, in the inner zone of the estuary, hosts a permanent marine research station, whose records span more than 30 years of biophysical variables, and represent one of the largest time series of ecological data in South America. Beyond its ecological relevance, the Bahia Blanca Estuary is under increasing anthropogenic pressure from large urban settlements, industrial developments and harbors, raising the question of how to balance conservation and development. The Bahia Blanca Estuary: Ecology and Biodiversity offers a comprehensive review of life in the ecosystems of the estuary. The book is divided into five major sections, the first of which provides a description of the regional setting and covers key aspects of estuarine dynamics. The three following sections are dedicated to different habitat types and, within each section, the chapters are organized around major functional groups from pelagic and benthic environments. The fifth and final section covers issues related to management and conservation. Overall, the book provides essential and up-to-date reference material on the biodiversity and ecosystem processes of the Bahia Blanca Estuary, and will appeal to a broad international audience.

Estuaries and Coastal Zones in Times of Global Change - Proceedings of ICEC-2018 (Hardcover, 1st ed. 2020): Kimdan Nguyen,... Estuaries and Coastal Zones in Times of Global Change - Proceedings of ICEC-2018 (Hardcover, 1st ed. 2020)
Kimdan Nguyen, Sylvain Guillou, Philippe Gourbesville, Jerome Thiebot
R4,333 Discovery Miles 43 330 Ships in 12 - 17 working days

This book is a collection of extended papers based on presentations given during the ICEC 2018 conference, held in Caen, France, in August 2018. It explores both the limitations and advantages of current models, and highlights the latest developments concerning new numerical schemes, high-performance computing, multi-physics and multi-scale methods, and better interaction with field or scale model data. Accordingly, it addresses the interests of practitioners, stakeholders, researchers, and engineers active in this field.

Blue Carbon in Shallow Coastal Ecosystems - Carbon Dynamics, Policy, and Implementation (Hardcover, 1st ed. 2019): Tomohiro... Blue Carbon in Shallow Coastal Ecosystems - Carbon Dynamics, Policy, and Implementation (Hardcover, 1st ed. 2019)
Tomohiro Kuwae, Masakazu Hori
R4,280 Discovery Miles 42 800 Ships in 12 - 17 working days

This book presents a comprehensive and innovative understanding of the role of shallow coastal ecosystems in carbon cycling, particularly marine carbon sequestration. Incorporating a series of forward-looking chapters, the book combines thorough reviews of the global literature and regional assessments-mainly around the Indo-Pacific region and Japan-with global perspectives to provide a thorough assessment of carbon cycling in shallow coastal systems. It advocates the expansion of blue-carbon ecosystems (mangroves, seagrass meadows, and salt marshes) into macroalgal beds, tidal flats, coral reefs, and urbanized shallow waters, demonstrating the potential of these ecosystems as new carbon sinks. Moreover, it discusses not only topics that are currently the focus of blue-carbon studies, i.e., sedimentary carbon stock and accumulation rate, but also CO2 gas exchange between the atmosphere and shallow coastal ecosystems, carbon storage in the water column as refractory organic carbon, and off-site carbon storage. Including highly original contributions, this comprehensive work inspires research beyond the specific regions covered by the chapters. The suite of new concepts and approaches is refreshing and demonstrates that blue-carbon research is indeed a vibrant new field of research, providing deep insights into neglected aspects of carbon cycling in the marine environment. At the same time the book provides guidance for policy makers to deliver benefits to society, for example the inclusion of blue carbon as a carbon offset scheme or the Nationally Determined Contribution (NDC) in the Paris Agreement, and also for building resilience in coastal socio-ecosystems through better management. This book is intended for all those interested in the science and management of coastal ecosystems.

Ecosystem Services for Well-Being in Deltas - Integrated Assessment for Policy Analysis (Hardcover, 1st ed. 2018): Robert J.... Ecosystem Services for Well-Being in Deltas - Integrated Assessment for Policy Analysis (Hardcover, 1st ed. 2018)
Robert J. Nicholls, Craig W. Hutton, W. Neil Adger, Susan E. Hanson, Md. Munsur Rahman, …
R1,317 Discovery Miles 13 170 Ships in 12 - 17 working days

This book answers key questions about environment, people and their shared future in deltas. It develops a systematic and holistic approach for policy-orientated analysis for the future of these regions. It does so by focusing on ecosystem services in the world's largest, most populous and most iconic delta region, that of the Ganges-Brahmaputra delta in Bangladesh. The book covers the conceptual basis, research approaches and challenges, while also providing a methodology for integration across multiple disciplines, offering a potential prototype for assessments of deltas worldwide. Ecosystem Services for Well-Being in Deltas analyses changing ecosystem services in deltas; the health and well-being of people reliant on them; the continued central role of agriculture and fishing; and the implications of aquaculture in such environments.The analysis is brought together in an integrated and accessible way to examine the future of the Ganges Brahmaputra delta based on a near decade of research by a team of the world's leading scientists on deltas and their human and environmental dimensions. This book is essential reading for students and academics within the fields of Environmental Geography, Sustainable Development and Environmental Policy focused on solving the world's most critical challenges of balancing humans with their environments. This book is licensed under a Creative Commons Attribution 4.0 International License.

Islands in the Sand - Ecology and Management of Nearshore Hardbottom Reefs of East Florida (Hardcover, 1st ed. 2020): Daniel A.... Islands in the Sand - Ecology and Management of Nearshore Hardbottom Reefs of East Florida (Hardcover, 1st ed. 2020)
Daniel A. McCarthy, Kenyon C. Lindeman, David B. Snyder, Karen G. Holloway-Adkins
R4,931 Discovery Miles 49 310 Ships in 12 - 17 working days

Nearshore hardbottom reefs of Florida's east coast are used by over 1100 species of fishes, invertebrates, algae, and sea turtles. These rocky reefs support reproduction, settlement, and habitat use, and are energy sources and sinks. They are also buried by beach renourishment projects in which artificial reefs are used for mitigation. This comprehensive book is for research scientists and agency personnel, yet accessible to interested laypersons including beachfront residents and water-users. An unprecedented collection of research information and often stunning color photographs are assembled including over 1250 technical citations and 127 figures. These shallow reefs are part of a mosaic of coastal shelf habitats including estuarine seagrasses and mangroves, and offshore coral reefs. These hardbottom habitats are federally designated as Essential Fish Habitats - Habitats of Particular Concern and are important feeding areas for federally-protected sea turtles. Organismal and assemblage responses to natural and man-made disturbances, including climate change, are examined in the context of new research and management opportunities for east Florida's islands in the sand.

J.N. Ding Darling National Wildlife Refuge (Hardcover): Charles Lebuff J.N. Ding Darling National Wildlife Refuge (Hardcover)
Charles Lebuff
R612 Discovery Miles 6 120 Ships in 12 - 17 working days
Barrier Dynamics and Response to Changing Climate (Hardcover, 1st ed. 2018): Laura J. Moore, A. Brad Murray Barrier Dynamics and Response to Changing Climate (Hardcover, 1st ed. 2018)
Laura J. Moore, A. Brad Murray
R3,610 Discovery Miles 36 100 Ships in 10 - 15 working days

This book presents chapters, written by leading coastal scientists, which collectively depict the current understanding of the processes that shape barrier islands and barrier spits, with an emphasis on the response of these landforms to changing conditions. A majority of the world's population lives along the coast at the dynamic intersection between terrestrial and marine ecosystems and landscapes. As narrow, low-lying landforms, barriers are especially vulnerable to changes in sea level, storminess, the geographic distribution of grass species, and the rate of sand supply-some barriers will undergo rapid changes in state (e.g., from landward migrating to disintegrating), on human time scales. Attempts by humans to prevent change can hasten the loss of these landforms, threatening their continued existence as well as the recreational, financial and ecosystem service benefits they provide. Understanding the processes and interactions that drive landscape response to climate change and human actions is essential to adaptation. As managers and governments struggle to plan for the future along low-lying coasts worldwide, and scientists conduct research that provides useful guidance, this volume offers a much-needed compilation for these groups, as well as a window into the science of barrier dynamics for anyone who is generally interested in the impacts of a changing world on coastal environments.

Brazilian Estuaries - A Benthic Perspective (Hardcover, 1st ed. 2018): Paulo Da Cunha Lana, Angelo Fraga Bernardino Brazilian Estuaries - A Benthic Perspective (Hardcover, 1st ed. 2018)
Paulo Da Cunha Lana, Angelo Fraga Bernardino
R2,801 Discovery Miles 28 010 Ships in 10 - 15 working days

This book presents the main drivers of benthic structure and processes in estuaries from the 8,000 km-Brazilian coast, assesses the influence of natural and human disturbance, and discusses their ecological importance and management needs. Estuaries are unique coastal ecosystems often with low biodiversity that sustain and provide essential ecological services to mankind. These ecosystems include a variety of habitats with their own sediment and fauna dynamics, all of them globally altered or threatened by human activities. Mangroves, saltmarshes, tidal flats and other confined estuarine systems are under increasing stress by overfishing and other human activities leading to habitat and species loss. Combined changes in estuarine hydromorphology and in climate pose severe threats to estuarine ecosystems at a global scale.

21st Century Maritime Silk Road: A Peaceful Way Forward (Hardcover, 1st ed. 2018): Chongwei Zheng, Ziniu Xiao, Wen Zhou,... 21st Century Maritime Silk Road: A Peaceful Way Forward (Hardcover, 1st ed. 2018)
Chongwei Zheng, Ziniu Xiao, Wen Zhou, Xiaobin Chen, Xuan Chen
R4,222 Discovery Miles 42 220 Ships in 12 - 17 working days

This book focuses on understanding the characteristics of the marine environment; overall characteristic of the marine resources (especially the marine new energy) and their current utilization; important routes, channels, and ports; and the Maritime Silk Road from the perspective of international law. It also discusses the significance and opportunities of the Maritime Silk Road initiative, analyzes the challenges involved in the construction of the Maritime Silk Road and provides corresponding countermeasures. Based on the above research, this book also proposes to construct a comprehensive application platform for the Maritime Silk Road that will be a practical tool for decision-making. This book is one of the series publications on the 21st century Maritime Silk Road (shortened as "Maritime Silk Road"). This series publications cover the characteristics of the marine environment and marine new energy, remote islands and reefs construction, climate change, early warning of wave disasters, legal escort, marine environment and energy big data construction, etc. contributing to the safe and efficient construction of the Maritime Silk Road. It aims to improve our knowledge of the ocean, thus to improve the capacity for marine construction, enhance the viability of remote islands and reefs, ease the energy crisis and protect the ecological environment, improve the quality of life of residents along the Maritime Silk Road, and protect the rights, interests of the countries and regions participating in the construction of the Maritime Silk Road. It will be a valuable reference for decision-makers, researchers, and marine engineers working in the related fields.

Perspectives on Oceans Past (Hardcover, 1st ed. 2016): Kathleen Schwerdtner Manez, Bo Poulsen Perspectives on Oceans Past (Hardcover, 1st ed. 2016)
Kathleen Schwerdtner Manez, Bo Poulsen
R4,253 Discovery Miles 42 530 Ships in 12 - 17 working days

Marine environmental history analyses the changing relationships between human societies and marine natural resources over time. This is the first book which deals in a systematic way with the theoretical backgrounds of this discipline. Major theories and methods are introduced by leading scholars of the field. The book seeks to encapsulate some of the major novelties of this fascinating new discipline and its contribution to the management, conservation and restoration of marine and coastal ecosystems as well as the cultural heritages of coastal communities in different parts of the world.

Studies of the Biogeochemistry of Typical Estuaries and Bays in China (Hardcover, 1st ed. 2020): Zhiliang Shen Studies of the Biogeochemistry of Typical Estuaries and Bays in China (Hardcover, 1st ed. 2020)
Zhiliang Shen
R3,304 Discovery Miles 33 040 Ships in 10 - 15 working days

This book presents study findings involving the Changjiang River estuary and Jiaozhou Bay, China, etc. It takes a large catchment as a combined ecosystem to study nutrients biogeochemistry and environmental aspects of the Changjiang River. Some of the findings have sparked new research directions, including systematic studies of nutrients in the Changjiang River; sources and control mechanisms of nitrogen and phosphorus in the Changjiang River and its estuary; removal and transport of nutrients in the turbidity maximum zone and upwelling area of the Changjiang estuary; long-term changes in nutrients and ecological responses in the Changjiang River estuary and Jiaozhou Bay; and a study on nutrient structure and nutrient composition of phytoplankton, which are topics at the forefront ofinternational marine The studies address different fields, such as biogeochemistry, marine chemistry, ecology, environmental science, oceanography and biology.

The Many Facets of Israel's Hydrogeology (Hardcover, 1st ed. 2021): Uri Kafri, Yoseph Yechieli The Many Facets of Israel's Hydrogeology (Hardcover, 1st ed. 2021)
Uri Kafri, Yoseph Yechieli
R3,654 Discovery Miles 36 540 Ships in 12 - 17 working days

This book presents a collection of essays that address various facets of the hydrogeology of Israel. Despite its small geographic size, Israel exhibits a variety of climates and is located between two regional fluctuating base levels. The respective chapters discuss the variety of hydrogeological configurations and hydrological processes produced by these geographical circumstances. In some cases, the interpretation of these aspects is deliberately left open to debate, because the authors were asked to provide, in addition to their own views, also alternative and even conflicting ones. Hydrogeological configurations similar to those in Israel can be found in other countries around the world. Therefore, researchers, scholars and professionals in this interdisciplinary field can benefit from and directly apply the considerable experience and expertise that has been gathered in Israel over the past few decades.

The Fresh and the Salt - The Story of the Solway (Hardcover): Ann Lingard The Fresh and the Salt - The Story of the Solway (Hardcover)
Ann Lingard
R747 R675 Discovery Miles 6 750 Save R72 (10%) Ships in 9 - 15 working days

Shortlisted for the 2021 Lakeland Book of the Year Firths and estuaries are liminal places, where land meets sea and tides meet freshwater. Their unique ecosystems support a huge range of marine and other wildlife: human activity too is profoundly influenced by their waters and shores. The Solway Firth - the crooked finger of water that both unites and divides Scotland and England - is a beautiful yet unpredictable place and one of the least-industrialised natural large estuaries in Europe. Its history, geology and turbulent character have long affected the way its inhabitants, both human and non-human, have learnt to live along and within its ever-changing margins.

The Spanish Coastal Systems - Dynamic Processes, Sediments and Management (Hardcover, 1st ed. 2019): Juan A Morales The Spanish Coastal Systems - Dynamic Processes, Sediments and Management (Hardcover, 1st ed. 2019)
Juan A Morales
R4,651 Discovery Miles 46 510 Ships in 12 - 17 working days

This monograph presents the state of art of the geologic knowledge about the Spanish coast obtained through scientific research in the last 30 years.From a general point of view, coasts are the most quickly changing systems of the Earth. This is critical, since many human resources, such as the main part of economic and social activities, are located in the coastal areas. Especially in the case of Spain these coasts include cities, wide industrial areas (including harbor complexes), important ecologic systems, and our main economic resource: tourism. Understanding the dynamic functioning of each element of this coast is vital for correct future coastal management, so as to solve problems derived from bad plans developed in the last decades of the twentieth century. This is a valuable text for advanced graduate students and coastal researchers, which connects the specific dynamic functioning of the main Spanish coastal environments and their relationships with human activities.

The Ecology and Natural History of Chilean Saltmarshes (Hardcover, 1st ed. 2017): Jose Miguel Farina, Andres Camano The Ecology and Natural History of Chilean Saltmarshes (Hardcover, 1st ed. 2017)
Jose Miguel Farina, Andres Camano
R4,722 Discovery Miles 47 220 Ships in 12 - 17 working days

This book consolidates the information, results, experience and perspectives of different research groups working on Chilean Saltmarshes. Some aspects of these ecosystems such as their bio-geographical connectivity, flora and faunal components, the interaction between ecosystem components and especially the response of this kind of ecosystems to human and natural perturbations defines the Chilean Saltmarshes as an attractive systems for future studies, focused into test the theoretical and experimental aspects of saltmarshes and general ecology.

Geophysical Fluid Dynamics II - Stratified / Rotating Fluid Dynamics of the Atmosphere-Ocean (Hardcover, 1st ed. 2021): Emin... Geophysical Fluid Dynamics II - Stratified / Rotating Fluid Dynamics of the Atmosphere-Ocean (Hardcover, 1st ed. 2021)
Emin OEzsoy
R2,134 R1,552 Discovery Miles 15 520 Save R582 (27%) Ships in 12 - 17 working days

This book develops a fundamental understanding of geophysical fluid dynamics based on a mathematical description of the flows of inhomogeneous fluids. It covers these topics: 1. development of the equations of motion for an inhomogeneous fluid 2. review of thermodynamics 3. thermodynamic and kinetic energy equations 4. equations of state for the atmosphere and the ocean, salt, and moisture effects 5. concepts of potential temperature and potential density 6. Boussinesq and quasi-geostrophic approximations 7. conservation equations for vorticity, mechanical and thermal energy instability theories, internal waves, mixing, convection, double-diffusion, stratified turbulence, fronts, intrusions, gravity currents Graduate students will be able to learn and apply the basic theory of geophysical fluid dynamics of inhomogeneous fluids on a rotating earth, including: 1. derivation of the governing equations for a stratified fluid starting from basic principles of physics 2. review of thermodynamics, equations of state, isothermal, adiabatic, isentropic changes 3. scaling of the equations, Boussinesq approximation, applied to the ocean and the atmosphere 4. examples of stratified flows at geophysical scales, steady and unsteady motions, inertia-gravity internal waves, quasi-geostrophic theory 5. vorticity and energy conservation in stratified fluids 6.boundary layer convection in stratified containers and basins

Modeling Coastal Hypoxia - Numerical Simulations of Patterns, Controls and Effects of Dissolved Oxygen Dynamics (Hardcover, 1st... Modeling Coastal Hypoxia - Numerical Simulations of Patterns, Controls and Effects of Dissolved Oxygen Dynamics (Hardcover, 1st ed. 2017)
Dubravko Justic, Kenneth A Rose, Robert D. Hetland, Katja Fennel
R6,426 Discovery Miles 64 260 Ships in 12 - 17 working days

This book provides a snapshot of representative modeling analyses of coastal hypoxia and its effects. Hypoxia refers to conditions in the water column where dissolved oxygen falls below levels that can support most metazoan marine life (i.e., 2 mg O2 l-1). The number of hypoxic zones has been increasing at an exponential rate since the 1960s; there are currently more than 600 documented hypoxic zones in the estuarine and coastal waters worldwide. Hypoxia develops as a synergistic product of many physical and biological factors that affect the balance of dissolved oxygen in seawater, including temperature, solar radiation, wind, freshwater discharge, nutrient supply, and the production and decay of organic matter. A number of modeling approaches have been increasingly used in hypoxia research, along with the more traditional observational and experimental studies. Modeling is necessary because of rapidly changing coastal circulation and stratification patterns that affect hypoxia, the large spatial extent over which hypoxia develops, and limitations on our capabilities to directly measure hypoxia over large spatial and temporal scales. This book consists of 15 chapters that are broadly organized around three main topics: (1) Modeling of the physical controls on hypoxia, (2) Modeling of biogeochemical controls and feedbacks, and, (3) Modeling of the ecological effects of hypoxia. The final chapter is a synthesis chapter that draws generalities from the earlier chapters, highlights strengths and weaknesses of the current state-of-the-art modeling, and offers recommendations on future directions.

Marine Algal Bloom: Characteristics, Causes and Climate Change Impacts (Hardcover, 1st ed. 2018): Santosh Kumar Sarkar Marine Algal Bloom: Characteristics, Causes and Climate Change Impacts (Hardcover, 1st ed. 2018)
Santosh Kumar Sarkar
R3,268 Discovery Miles 32 680 Ships in 10 - 15 working days

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.

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