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Books > Professional & Technical > Agriculture & farming > Aquaculture & fishing: practice & techniques

How to Make and Set Nets (Paperback): J. Garner How to Make and Set Nets (Paperback)
J. Garner
R1,741 Discovery Miles 17 410 Ships in 12 - 19 working days

The fundamentals of making up nets from machine--made netting are set out with such clarity and simplicity that the book has proved a boon to fishermen around the world. Early chapters describe the principles of mesh size and the run of knots in machine netting, and are followed by detailed descriptions of net making machines and the principles of hanging netting. On actual fishing nets, descriptions are given of seine net patterns, various trawl nets, pound nets such as salmon nets with detailed drawings, surround nets of the lampara type and ring nets with their design, construction and methods of working. A useful dictionary of fishing gear and terminology explains 1,000 terms.

Ecosystem Based Fisheries Management in the Western Pacific (Hardcover): E Glazier Ecosystem Based Fisheries Management in the Western Pacific (Hardcover)
E Glazier
R5,974 Discovery Miles 59 740 Ships in 12 - 19 working days

As the ecosystem-based trend in fisheries management continues to be implemented worldwide, a thorough background of this new management approach and resulting implementation strategies is needed. "Ecosystem-Based Fisheries Management in the Western Pacific" presents a full picture of the process changes used in switching from target species based management to EBFM, using a region that is at the forefront of this widely accepted movement.

"Ecosystem-Based Fisheries Management in the Western Pacific" is the outgrowth of a series of three workshops convened by the Western Pacific Regional Fishery Management council. The book follows the logical approach of each workshop, beginning with an assessment of the current state of fisheries management, transitioning through the data sources and modeling systems used to advance EBFM, and ending with practical methodologies for more thorough global implementation in the future.

Contributed by experts from the Pacific regions as well as the UK and Non-pacific States, this book is one of the first available compendiums on this important movement and will be applicable to fisheries scientists and researchers, fisheries managers, policy makers, and social scientists worldwide

Fish Viruses and Bacteria - Pathobiology and Protection (Hardcover): Patrick T. K. Woo, Rocco C Cipriano Fish Viruses and Bacteria - Pathobiology and Protection (Hardcover)
Patrick T. K. Woo, Rocco C Cipriano; Contributions by Arun Dhar, Andrew Orry, F. C. Thomas Allnutt, …
R3,644 Discovery Miles 36 440 Ships in 12 - 19 working days

Taking a disease-based approach, Fish Viruses and Bacteria: Pathobiology and Protection focuses on the pathobiology of and protective strategies against the most common, major microbial pathogens of economically important marine and freshwater fish. The book covers well-studied, notifiable piscine viruses and bacteria, including new and emerging diseases which can become huge threats to local fish populations in new geographical regions if transported there via infected fish or eggs. A concise but thorough reference work, this book: - Covers key viral and bacterial diseases of notable fish species; - Reviews major well-established piscine pathogens as well as new, emerging and notifiable diseases; and - Contains the most up-to-date research contributed by a team of over fifty world experts. An invaluable bench book for fish health consultants, veterinarians and all those wanting instant access to information, this book is also a useful textbook for students specializing in fish health and research scientists initiating fish disease research programmes.

Dietary Nutrients, Additives and Fish Health (Hardcover): C. -S Lee Dietary Nutrients, Additives and Fish Health (Hardcover)
C. -S Lee
R4,993 Discovery Miles 49 930 Ships in 12 - 19 working days

Fish nutrition can be the deciding factor between a robust and healthy farmed fish population and low aquaculture production. In an age where chemicals and antibiotics are under greater scrutiny than ever, a strong understanding of the role of nutrients and feed additives is essential in the aquaculture industry. Dietary Nutrients, Additives and Fish Health is a comprehensive review of dietary nutrients, antinutritional factors and toxins, and non-nutrient dietary additives, and their effects on fish performance and immune system function, as well as overall health. The book opens with an overview of fish immune systems and health. Subsequent chapters delve into proteins and amino acids, lipids and fatty acids, carbohydrates, beta glucans, vitamins, minerals, antinutrients, mycotoxins, nucleotides, prebiotics, probiotics, organic acids and their salts, and plant extracts and their impacts on fish health, growth, and development. The text then concludes with a chapter on feeding practices. Authored by leaders in aquaculture, Dietary Nutrients, Additives and Fish Health will be an invaluable resource to graduate students, researchers and professionals alike.

Climate Change and Infectious Fish Diseases (Hardcover): Patrick T. K. Woo, Jo-Ann Leong, Kurt Buchmann Climate Change and Infectious Fish Diseases (Hardcover)
Patrick T. K. Woo, Jo-Ann Leong, Kurt Buchmann
R5,832 Discovery Miles 58 320 Ships in 12 - 19 working days

Climate change with global warming is not disputed by the vast majority of scientists and the aquatic system is most affected. A global rise in water temperature and acidification of the aquatic environment will continue even if we can significantly reduce the current output of the two most important greenhouse gasses (carbon dioxide and methane). These and other environmental changes will affect fish health which includes infectious pathogens. This important new text is the second volume on climate change and fish health. It covers changes to the freshwater ecosystem and their current and expected effects on selected infectious diseases of fish. The book represents contributions by over 50 experts from 18 countries. Comprehensive and thought-provoking, the book details abiotic and biotic environmental changes in temperate and tropical freshwater ecosystems, sequestrations of atmospheric carbon dioxide and effects on infectious diseases (12 microbial and 10 parasitic) in economically important fish in tropical, subtropical and temperate waters. The text is key reading for fish disease scientists, aquatic ecologists, fish health consultants, veterinarians, policy makers and all who are interested in fish health and the environment.

A Primer of Ecological Aquaculture (Hardcover): Dietmar Kultz A Primer of Ecological Aquaculture (Hardcover)
Dietmar Kultz
R3,162 Discovery Miles 31 620 Ships in 12 - 19 working days

Aquaculture exemplifies the ongoing global struggle to strike a sustainable balance between the conflicting needs of a rapidly increasing world population, human health, ecosystem health, the welfare of wild and domesticated animals, and the economic principles of globalized economies. On the one hand, aquaculture has great potential for providing us with a healthy and nutritious food supply whilst alleviating pressure on captive fisheries and reducing fisheries-induced habitat destruction, overfishing, genetic modification of wild populations, and wholesale waste of bycatch. On the other hand, aquaculture relies heavily on clean water, an increasingly precious (and dwindling) resource that is subject to intense pressure of being used for many competing objectives. This concise primer introduces students to the basic concepts, opportunities, and challenges of aquaculture with an emphasis on ecological considerations. It provides a critical assessment of current aquaculture practices from a broad, interdisciplinary perspective and from the standpoint of how best to align the two major (and often conflicting) goals of future aquaculture development: minimizing reliance on ecosystem services whilst maximizing productivity. A Primer of Ecological Aquaculture provides an accessible and authoritative overview for a wide range of undergraduate majors ranging from biology, engineering, and environmental policy to business and management. It will also appeal to a more general academic audience who wish to gain a current overview of the field.

Echinoderm Aquaculture (Hardcover): N. Brown Echinoderm Aquaculture (Hardcover)
N. Brown
R5,574 Discovery Miles 55 740 Ships in 12 - 19 working days

Sea urchins and sea cucumbers are highly sought after delicacies growing in popularity globally. The demand for these species is rapidly outpacing natural stocks, and researchers and seafood industry personnel are now looking towards aquaculture as a means of providing a sustainable supply of these organism. Echinoderm Aquaculture is a practical reference on the basic biology and current culture practices for a wide range of geographically diverse echinoderm species. Echinoderm Aquaculture begins by examining the basic ecology and biology of sea urchins and sea cucumbers as well as the breadth of uses of these organisms as a source of food and bioactive compound. Subsequent chapters delineate the specific species of interest invarious geographic regions from around the world. Together, chapters provide a comprehensive coverage of culture practices. Echinoderm Aquaculture is a practical reference for researchers and industry personnel, and will serve as an invaluable resource to this rapidly growing segment of the aquaculture industry.

To Fish in Common - The Ethnohistory of Lummi Indian Salmon Fishing (Paperback, New Ed): Daniel L. Boxberger To Fish in Common - The Ethnohistory of Lummi Indian Salmon Fishing (Paperback, New Ed)
Daniel L. Boxberger; Foreword by Chris Friday
R913 Discovery Miles 9 130 Ships in 10 - 15 working days

"A study of the Lummi Indians of northwestern Washington and the political and economic forces that have determined their changing fortunes over the past 150 years. Daniel Boxberger has made excellent use of documentary sources, oral history, and his own observations. . . . The book is compelling and well documented; it is also understated, frequently allowing the actions of the myriad contending interest groups to speak for themselves." "--Ethnohistory"

"Boxberger knows his subject. He displays an impressive understanding of the technical development of fishing, and he repeatedly uses his interviews with Indians to inform and test archival and secondary sources." "--American Indian Quarterly"

"By focusing on the history of control over productive resources (in this case salmon, methods of harvest, processing, capital investment, and markets) Boxberger shows how the Lummi slid from independence and self-sufficiency to dependency, underdevelopment, and poverty. . . . Not only is it an excellent, in-depth study of the Lummi case, it can also serve as a metaphor for the larger question of Native American treaty rights and the resource provisions of agreements." "--Pacific Historical Review"

Daniel L. Boxberger is professor of anthropology at Western Washington University, Bellingham.

Shellfish Aquaculture and the Environment (Hardcover): S Shumway Shellfish Aquaculture and the Environment (Hardcover)
S Shumway
R5,864 Discovery Miles 58 640 Ships in 12 - 19 working days

"Shellfish Aquaculture and the Environment" focuses primarily on the issues surrounding environmental sustainability of shellfish aquaculture. The chapters in this book provide readers with the most current data available on topics such as resource enhancement and habitat restoration. "Shellfish Aquaculture and the Environment" is also an invaluable resource for those looking to develop and implement environmental best management practices. Edited one of the world's leading shellfish researchers and with contributions from around the world, "Shellfish Aquaculture and the Environment" is the definitive source of information for this increasingly important topic.

View the Executive Summary here:

http: //seagrant.uconn.edu/publications/aquaculture/execsumm.pdf

Next Generation Sequencing and Whole Genome Selection in Aquaculture (Hardcover, New): Z. Liu Next Generation Sequencing and Whole Genome Selection in Aquaculture (Hardcover, New)
Z. Liu
R5,955 Discovery Miles 59 550 Ships in 12 - 19 working days

Recent developments in DNA marker technologies, in particular the emergence of Single Nucleotide Polymorphism (SNP) discovery, have rendered some of the traditional methods of genetic research outdated. "Next Generation Sequencing and Whole Genome Selection in Aquaculture" comprehensively covers the current state of research in whole genome selection and applies these discoveries to the aquaculture industry specifically. The text begins with a thorough review of SNP and transitions into topics such as next generation sequencing, EST data mining, SNP quality assessment, and whole genome selection principles. Ending with a discussion of the technology's specific applications to the industry, this text will be a valuable reference for those involved in all aspects of aquaculture research.

Special Features: Unique linking of SNP technologies, next generation sequencing technologies, and whole genome selection in the context of aquaculture research Thorough review of Single Nucleotide Polymorphism and existing research 8-page color plate section featuring detailed illustrations

Practical Flatfish Culture and Stock Enhancement (Hardcover, New): H. V Daniels Practical Flatfish Culture and Stock Enhancement (Hardcover, New)
H. V Daniels
R6,298 Discovery Miles 62 980 Ships in 12 - 19 working days

"Practical Flatfish Culture and Stock Enhancement" is a key reference on culture methods, offering both practical applications and essential biological information. Throughout the text, the culture and stock enhancement issues are treated simultaneously, integrating these two perspectives. By looking to the outcomes of hatchery culture methods, including the economics and fish behavior, "Practical Flatfish Culture and Stock Enhancement" is a valuable tool in making management decisions.With chapters on disease diagnosis and treatment, culture methods for a number of specific species, and the use of flatfish as model organisms in laboratory settings, "Practical Flatfish Culture and Stock Enhancement" comprehensively covers the subject of culture and stock enhancement. The book is especially useful for aquaculture professionals, industry personnel, researchers, biologists, and aquaculture and fisheries management students.

Largemouth Bass Aquaculture (Hardcover): James Tidwell, Shawn Coyle, Leigh Anne Bright Largemouth Bass Aquaculture (Hardcover)
James Tidwell, Shawn Coyle, Leigh Anne Bright
R4,565 Discovery Miles 45 650 Ships in 12 - 19 working days

Largemouth bass (Micropterus salmoides) are highly prized as sports fish and increasingly as high-value food fish. The farming of largemouth bass is becoming increasingly important and international as the procedures and management for successful culture are being refined. Largemouth bass aquaculture is now widespread across the USA and increasingly in other countries worldwide: the largemouth bass aquaculture industry in China is particularly strong. Largemouth Bass Aquaculture provides comprehensive coverage of all aspects of the farming of largemouth bass, with chapters encompassing all major areas of importance, including: their history, production, environment requirements, reproduction, culture methods, diseases and major markets. Many of the world's experts in the field have contributed chapters to this landmark publication and the editors are very well-known and respected worldwide. The book is fully international in scope, drawing information from all major countries where largemouth bass are farmed. Largemouth Bass Aquaculture is an important resource for those working in aquaculture, including fish farm operatives and managers, veterinarians and fish health managers, inspectors and consultants. Personnel within companies supplying the aquaculture industry with feed, technical equipment and pharmaceuticals will find a wealth of useful information within this book. Libraries in all universities and establishments teaching and researching aquaculture, fish biology, ichthyology, fisheries, aquatic sciences and veterinary studies should have copies of this comprehensive book on their shelves.

Environmental Risk Assessment of Genetically Modified Organisms Volume 3 - Methodologies for Transgenic Fish (Hardcover): Anne... Environmental Risk Assessment of Genetically Modified Organisms Volume 3 - Methodologies for Transgenic Fish (Hardcover)
Anne Kapuscinski, Keith Hayes, Sifa Li, Genya Dana
R3,524 Discovery Miles 35 240 Ships in 12 - 19 working days

The decline of many individual and wild fish stocks has commanded an increase in aquaculture production to meet the protein demands of a growing population. Alongside selective breeding schemes and expanding facilities, transgenic methods have received increasing attention as a potential factor in meeting these demands. With a focus on developing countries, this third text in the series provides detailed information on environmental biosafety policy and regulation and presents methodologies for assessing ecological risks associated with transgenic fish.

Ocean Recovery - A sustainable future for global fisheries? (Hardcover): Ray Hilborn, Ulrike Hilborn Ocean Recovery - A sustainable future for global fisheries? (Hardcover)
Ray Hilborn, Ulrike Hilborn
R1,378 Discovery Miles 13 780 Ships in 12 - 19 working days

Over the last two decades, the scientific and popular media have been bombarded by gloom and doom stories of the future of fisheries, the status of fish stocks, and the impact of fishing on marine ecosystems. Dozens of certification and labeling schemes have emerged to advise consumers on what seafood is sustainable. In recent years, an opposing narrative has emerged emphasizing the success of fisheries management in many places, the increasing abundance of fish stocks in those places, and the prescription for sustainable fisheries. However, there has been no comprehensive survey of what really constitutes sustainability in fisheries, fish stock status, success and failures of management, and consideration of the impacts of fishing on marine ecosystems. This book will explore very different perspectives on sustainability, and bring together the data from a large number of studies to show where fish stocks are increasing, where they are declining, the consequences of alternative fisheries management regimes, and what is known about a range of fisheries issues such as the impacts of trawling on marine ecosystems. Ocean Recovery is aimed principally at a general audience that is already interested in fisheries but seeks both a deeper understanding of what is known about specific issues and an impartial presentation of all the data rather than selected examples used to justify a particular perspective or agenda. It will also appeal to the scientific community eager to know more about marine fisheries and fishing data, and serve as the basis for graduate seminars on the sustainability of natural resources.

Eels: Biology, Monitoring, Management, Culture and Exploitation - Proceedings of the First International Eel Science Symposium... Eels: Biology, Monitoring, Management, Culture and Exploitation - Proceedings of the First International Eel Science Symposium (Hardcover)
Andy Don, Paul Coulson
R5,347 Discovery Miles 53 470 Ships in 12 - 19 working days

The freshwater eels, the Anguillids, have increasingly become the focus of attention for fisheries managers, scientists, researchers, policy makers, conservation bodies and other stakeholders. These species can be seen as a bellwether for issues affecting aquatic ecosystems - their steep decline and the management initiatives to try and reverse this trend, touch on subjects as diverse as disconnected waterways, loss of habitat, novel parasites, pollution, over-fishing and climate change. There are some 16 species of the Anguilla genus and all exhibit similar lifestyles, growing in waters often far-removed from their marine spawning grounds. These enigmatic, contradictory and confounding species share similar challenges and pressures wherever they are found. This book was generated from the 1st UK International Eel Science Symposium which was held at the Zoological Society of London (ZSL) in June 2017. Hosted by the Institute of Fisheries Management (IFM), the ZSL, and the Environment Agency (EA), the Symposium was heralded as a success, with over 180 delegates in attendance. Many of the world's top eel specialists attended or gave presentations across a diverse range of subjects. This was one of the Symposium's, and now the book's great strengths - its diversity of subjects and authors. Many countries are represented within the book, from across Europe and as far afield as New Zealand, South Africa, Vanuatu, French Polynesia, Japan, Canada and the USA. The EA and IFM have collaborated to produce this landmark book which includes a mix of cultural, scientific and management information which will be invaluable to anyone with a professional or personal interest in these mysterious fish, including ichthyologists, fisheries scientists and managers, aquaculture personnel, environmental biologists and ecologists, marine and freshwater biologists, vertebrate zoologists, animal behaviourists and students studying in all these areas. Libraries in all universities and research establishments where these subjects are studied and taught should have copies on their shelves.

Tropical Deltas and Coastal Zones - Food Production, Communities and Environment at the Land-Water Interface (Hardcover, New):... Tropical Deltas and Coastal Zones - Food Production, Communities and Environment at the Land-Water Interface (Hardcover, New)
Jahangir Alam; Edited by Chu Hoanh; Contributions by Merlina Andalecio; Edited by Brian Szuster; Contributions by Eric Baran; Edited by …
R4,777 Discovery Miles 47 770 Ships in 12 - 19 working days

Tropical coastal deltas represent one of the most diverse and rapidly changing biophysical regions in the developing world. These deltas are home to large populated areas, are significant centres of agricultural production and industrial development, and contain fragile ecosystems that are now facing new threats as a result of expected sea-level rises associated with global warming. Focusing on the developing countries of Asia, Africa and South America, chapters explore the diverse livelihoods of people in these areas and the impact of land-water management on the environment. New techniques and methodologies are explored in land and water management to try and solve the conflicts between rice-based agriculture, aquaculture, fisheries and the environment in tropical delta regions. Illustrating how to protect tropical deltaic systems in the face of serious future challenges, this will be essential reading for students, researchers, policy makers and natural resource managers in agriculture and aquaculture.

The Caribbean Coral Reef - A Record of an Ecosystem Under Threat (Hardcover): William K. Sacco The Caribbean Coral Reef - A Record of an Ecosystem Under Threat (Hardcover)
William K. Sacco
R3,126 Discovery Miles 31 260 Ships in 12 - 19 working days

Caribbean coral reefs have unique species, are the world’s second largest coral reef community, and the most threatened. This book will be of major interest to all concerned with saving coral reefs from extinction. No other book available shows Caribbean coral reefs when they were at their best. It is only by comparing the images in this book with what they see now that people can recognize what we have lost. It is far more than they can imagine! Those who did not see it themselves can only do so through this book. Jim Porter’s insightful commentary in the Foreword adds crucial scientific perspective. Other books do not provide a one volume summary of all the major species on the Caribbean reef. This book is also more accurate in important systematic organization than other books in this field. The author’s excellent photographs convey clear concepts of processes and key aspects of species for identification. The book is written in an engaging story-telling style, yet clearly and concisely communicating the essential scientific concepts. Whereas most books have chapters dividing up one topic, this book is divided into different kinds of information which are essential to understanding coral reefs: how reefs are structured, corals, invertebrates, fishes, cryptic or hidden organisms, the community at night and others. One review states "After 52 years of researching coral reefs, I find this is the best book to present what reefs should be like, and were like 50 years ago. It is also written in a style accessible to recreational divers who wish to know the organisms, processes, and structures they are seeing." Another says "The first thing that will strikes the reader is the exquisite photography. There are many great underwater photographers, but the author is in a class by himself. Once the first impact of the astounding photography is accepted, the reader will be struck by what might be called the scientific integrity of the book." While this book is 'a time machine' taking the reader back to when these reefs thrived, there is optimism that we may see these reefs again as they appear in this book.

The Bluefin Tuna Fishery in the Bay of Biscay - Its Relationship with the Crisis of Catches of Large Specimens in the East... The Bluefin Tuna Fishery in the Bay of Biscay - Its Relationship with the Crisis of Catches of Large Specimens in the East Atlantic Fisheries from the 1960s (Paperback, 1st ed. 2019)
Jose Luis Cort, Pablo Abaunza
R735 Discovery Miles 7 350 Ships in 10 - 15 working days

This open access book is an original contribution to the knowledge on fishing and research associated with one of the most enigmatic fish of our seas: bluefin tuna, Thunnus thynnus (L.). Based on available evidence, it reconstructs the possible methods used to catch large spawners in the Strait of Gibraltar thousands of years ago and describes the much more recent overfishing that led to a great reduction in the catches of the trap fishery on the area and the disappearance of the northern European fisheries. It is the first book to relate the overfishing of juvenile fishes in certain areas to the decline of large spawners in other very distant areas, revealing one of the main underlying causes of this decline, which has remained a mystery to the fishing sector and scientists alike for over 50 years. This finding should serve to prevent similar cases from arising in the future.

Sustainable Aquaculture (Hardcover): JE Bardach Sustainable Aquaculture (Hardcover)
JE Bardach
R7,817 Discovery Miles 78 170 Ships in 12 - 19 working days

Aquaculture is a rapidly growing, successful approach to improving diets by providing more high quality fish and shellfish protein. It is also an industry with major unresolved issues because of its negative impact on the environment. This book is a pioneering effort in the development of environmentally benign aquaculture methods.

Health Maintenance and Principal Microbial Diseases of Cultured Fishes 3e (Hardcover, 3rd Edition): J.A. Plumb Health Maintenance and Principal Microbial Diseases of Cultured Fishes 3e (Hardcover, 3rd Edition)
J.A. Plumb
R4,635 Discovery Miles 46 350 Ships in 12 - 19 working days

"Health Maintenance and Principal Microbial Diseases of Cultured Fishes, Third Edition "is a thoroughly revised and updated version of the classic text. Building on the wealth of information presented in the previous edition, this new edition offers a major revision of the valuable health maintenance section, with new pathogens added throughout the book. "Health Maintenance and Principal Microbial Diseases of Cultured Fishes, Third Edition" focuses on maintaining fish health, illustrating how management can reduce the effects of disease." "

The text is divided into sections on health maintenance, viral diseases, and bacterial diseases, and covers a wide variety of commercially important species, including catfish, salmon, trout, sturgeon, and tilapia. This book is a valuable resource for professionals and students in the areas of aquaculture, aquatic health maintenance, pathobiology, and aquatic farm management.

Marine Invertebrate Fisheries: Their Assessment an Management (Hardcover): J. F Caddy Marine Invertebrate Fisheries: Their Assessment an Management (Hardcover)
J. F Caddy
R12,643 Discovery Miles 126 430 Ships in 12 - 19 working days

Systems Analysis and Simulation in Wildlife and Fisheries Sciences William E. Grant This hands-on approach provides guidance to the step-by-step applications of systems analysis and simulation to questions about ecological systems. At the same time, it explains general principles without requiring that readers have a strong background in mathematics, statistics, or computer science. Chapter 1 traces the development of systems ecology introducing basic concepts, while Chapters 2 through 5 present the four phases of systems analysis: conceptual model formulation, quantitative specification of the model, model validation, and model use. 1986 (0 471-89236-X) 338 pp. Bioeconomic Modelling and Fisheries Management Colin W. Clark Discusses the management of commercial marine fisheries and the relationship between the economic forces affecting the fishing industry and the biological factors that determine the production and supply of fish in the sea. Topics focus on methods of preventing overfishing and overcapitalization, economically effective and practical forms of regulation, management of developing fisheries, natural fluctuations of fish stocks, and complexities of marine ecosystems. 1985 (0 471-87394-2) 291 pp. Methods in Marine Zooplankton Ecology Makoto Omori and Tsutomu Ikeda Encompassing basic principles, procedures, and research problems, this book serves as a complete guide to current methods used in the study of marine zooplankton. The techniques are equally applicable to small organisms and to the larval stages of larger, commercially important organisms. Chapters start with a brief, but well-summarized introduction to zooplankton, followed by field sampling strategies andlaboratory methods, and then conclude with estimates of productivity and analysis of community structure. Each method is described in detail, including a discussion of the problems inherent in using it. 1984 (0 471-80107-0) 322 pp.

The Great Barrier Reef - Biology, Environment and Management, Second Edition (Paperback, 2nd edition): Pat Hutchings, Michael... The Great Barrier Reef - Biology, Environment and Management, Second Edition (Paperback, 2nd edition)
Pat Hutchings, Michael Kingsford, Ove Hoegh-Guldberg
R2,668 Discovery Miles 26 680 Ships in 12 - 19 working days

The iconic and beautiful Great Barrier Reef (GBR) Marine Park is home to one of the most diverse ecosystems in the world. With contributions from international experts, this timely and fully updated second edition of The Great Barrier Reef describes the animals, plants and other organisms of the reef, as well as the biological, chemical and physical processes that influence them. It contains new chapters on shelf slopes and fisheries and addresses pressing issues such as climate change, ocean acidification, coral bleaching and disease, and invasive species. The Great Barrier Reef is a must-read for the interested reef tourist, student, researcher and environmental manager. While it has an Australian focus, it can equally be used as a reference text for most Indo-Pacific coral reefs. Key Features: Exciting and contemporary account of the issues that face the world's most complex marine ecosystem. Examines the diversity, physiology, ecology and conservation of coral reefs in one volume. Written by leading authorities on the biodiversity of the GBR as well as its position as an icon for monitoring global warming. Beautifully illustrated.

American Catch - The Fight for Our Local Seafood (Paperback): Paul Greenberg American Catch - The Fight for Our Local Seafood (Paperback)
Paul Greenberg
R550 Discovery Miles 5 500 Ships in 10 - 15 working days

INVESTIGATIVE REPORTERS & EDITORS Book Award, Finalist 2014 "A fascinating discussion of a multifaceted issue and a passionate call to action" --Kirkus From the acclaimed author of Four Fish and The Omega Principle, Paul Greenberg uncovers the tragic unraveling of the nation's seafood supply-telling the surprising story of why Americans stopped eating from their own waters in American Catch In 2005, the United States imported five billion pounds of seafood, nearly double what we imported twenty years earlier. Bizarrely, during that same period, our seafood exports quadrupled. American Catch examines New York oysters, Gulf shrimp, and Alaskan salmon to reveal how it came to be that 91 percent of the seafood Americans eat is foreign. In the 1920s, the average New Yorker ate six hundred local oysters a year. Today, the only edible oysters lie outside city limits. Following the trail of environmental desecration, Greenberg comes to view the New York City oyster as a reminder of what is lost when local waters are not valued as a food source. Farther south, a different catastrophe threatens another seafood-rich environment. When Greenberg visits the Gulf of Mexico, he arrives expecting to learn of the Deepwater Horizon oil spill's lingering effects on shrimpers, but instead finds that the more immediate threat to business comes from overseas. Asian-farmed shrimp-cheap, abundant, and a perfect vehicle for the frying and sauces Americans love-have flooded the American market. Finally, Greenberg visits Bristol Bay, Alaska, home to the biggest wild sockeye salmon run left in the world. A pristine, productive fishery, Bristol Bay is now at great risk: The proposed Pebble Mine project could undermine the very spawning grounds that make this great run possible. In his search to discover why this precious renewable resource isn't better protected, Greenberg encounters a shocking truth: the great majority of Alaskan salmon is sent out of the country, much of it to Asia. Sockeye salmon is one of the most nutritionally dense animal proteins on the planet, yet Americans are shipping it abroad. Despite the challenges, hope abounds. In New York, Greenberg connects an oyster restoration project with a vision for how the bivalves might save the city from rising tides. In the Gulf, shrimpers band together to offer local catch direct to consumers. And in Bristol Bay, fishermen, environmentalists, and local Alaskans gather to roadblock Pebble Mine. With American Catch, Paul Greenberg proposes a way to break the current destructive patterns of consumption and return American catch back to American eaters.

Ecosystem Approach to Fisheries (Hardcover): G. Bianchi, H Skjoldal Ecosystem Approach to Fisheries (Hardcover)
G. Bianchi, H Skjoldal
R3,867 Discovery Miles 38 670 Ships in 12 - 19 working days

The ecosystem approach to fisheries management is high on national, regional and international agendas for sustainable fisheries management. Implementing the Ecosystem Approach to Fisheries covers both theoretical and applied aspects, with a particular emphasis on practical experiences in the form of case studies from around the world, and tools for solutions. Researchers, practitioners and policy makers in fisheries, aquaculture, marine biology and ecology will find this book an invaluable overview and guide to fisheries management.

Aquaculture Production Systems (Hardcover): JH Tidwell Aquaculture Production Systems (Hardcover)
JH Tidwell
R2,834 Discovery Miles 28 340 Ships in 10 - 15 working days

Aquaculture is an increasingly diverse industry with an ever-growing number of species cultured and production systems available to professionals. A basic understanding of production systems is vital to the successful practice of aquaculture.

Published with the World Aquaculture Society, "Aquaculture Production Systems" captures the huge diversity of production systems used in the production of shellfish and finfish in one concise volume that allows the reader to better understand how aquaculture depends upon and interacts with its environment.

The systems examined range from low input methods to super-intensive systems. Divided into five sections that each focus on a distinct family of systems, "Aquaculture Production Systems" serves as an excellent text to those just being introduced to aquaculture as well as being a valuable reference to well-established professionals seeking information on production methods.

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