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

The Tragedy of the Commodity - Oceans, Fisheries, and Aquaculture (Hardcover): Stefano B. Longon, Rebecca Clausen, Brett Clark The Tragedy of the Commodity - Oceans, Fisheries, and Aquaculture (Hardcover)
Stefano B. Longon, Rebecca Clausen, Brett Clark
R2,512 Discovery Miles 25 120 Ships in 7 - 11 working days

Although humans have long depended on oceans and aquatic ecosystems for sustenance and trade, only recently has human influence on these resources dramatically increased, transforming and undermining oceanic environments throughout the world. Marine ecosystems are in a crisis that is global in scope, rapid in pace, and colossal in scale. In The Tragedy of the Commodity, sociologists Stefano B. Longo, Rebecca Clausen, and Brett Clark explore the role human influence plays in this crisis, highlighting the social and economic forces that are at the heart of this looming ecological problem. In a critique of the classic theory "the tragedy of the commons"" by ecologist Garrett Hardin, the authors move beyond simplistic explanations - such as unrestrained self-interest or population growth - to argue that it is the commodification of aquatic resources that leads to the depletion of fisheries and the development of environmentally suspect means of aquaculture. To illustrate this argument, the book features two fascinating case studies - the thousand-year history of the bluefin tuna fishery in the Mediterranean and the massive Pacific salmon fishery. Longo, Clausen, and Clark describe how new fishing technologies, transformations in ships and storage capacities, and the expansion of seafood markets combined to alter radically and permanently these crucial ecosystems. In doing so, the authors underscore how the particular organization of social production contributes to ecological degradation and an increase in the pressures placed upon the ocean. The authors highlight the historical, political, economic, and cultural forces that shape how we interact with the larger biophysical world. A path-breaking analysis of overfishing, The Tragedy of the Commodity yields insight into issues such as deforestation, biodiversity loss, pollution, and climate change.

How to Catch a Lobster in Down East Maine (Paperback): Christina LeMieux Oragano How to Catch a Lobster in Down East Maine (Paperback)
Christina LeMieux Oragano
R355 R298 Discovery Miles 2 980 Save R57 (16%) Ships in 7 - 11 working days

The book will tell the history and story of Down East Maine lobster fishing. Author Christina Lemieux's family has been lobster fishermen for four generations, and the book draws from their personal recollections and documentation. It will then bring to life the experience of Down East Maine lobster fishing and living in a lobster fishing community. The book details how one goes about catching lobster, the seasons of lobster fishing and the perils of such a physically grueling job. It also talks about "lobster culture" some of the unique pastimes of lobster fishermen, such as the sport of Maine lobster boat racing. Finally, the book will give a brief overview of how to properly cook Maine lobster and provide some of the area's favorite lobster recipes.

Aquaculture Law and Policy - Global, Regional and National Perspectives (Hardcover): Nigel Bankes, Irene Dahl, David L.... Aquaculture Law and Policy - Global, Regional and National Perspectives (Hardcover)
Nigel Bankes, Irene Dahl, David L. VanderZwaag
R3,918 Discovery Miles 39 180 Ships in 10 - 15 working days

With aquaculture operations fast expanding around the world, the adequacy of aquaculture-related laws and policies has become a hot topic. This much-needed book provides a comprehensive guide to the complex regulatory seascape. Split into three distinct parts, the expert contributors first review the international legal dimensions, including chapters on the law of the sea, trade, and access and benefit sharing for aquatic genetic resources. Part Two discusses how the EU and regional bodies, such as the North Atlantic Salmon Conservation Organization (NASCO), have addressed aquaculture development and management whilst the final part contains twelve national case studies exploring how leading aquaculture producing countries have been putting sustainability principles into practice. These case studies focus on implementation approaches and challenges, in particular emphasizing ongoing national struggles in attaining effective aquaculture zoning and marine spatial planning. Students and scholars of environmental law and politics will find this contemporary volume an invaluable addition to the limited academic literature critiquing aquaculture law and policy. Policy makers, international bodies and NGOs will also find its insights particularly informative when ensuring sustainable aquaculture regulation and development.

The Wake of the Whale - Hunter Societies in the Caribbean and North Atlantic (Hardcover): Russell Fielding The Wake of the Whale - Hunter Societies in the Caribbean and North Atlantic (Hardcover)
Russell Fielding
R670 R597 Discovery Miles 5 970 Save R73 (11%) Ships in 10 - 15 working days

Despite declining stocks worldwide and increasing health risks, artisanal whaling remains a cultural practice tied to nature's rhythms. The Wake of the Whale presents the art, history, and challenge of whaling in the Caribbean and North Atlantic, based on a decade of award-winning fieldwork. Sightings of pilot whales in the frigid Nordic waters have drawn residents of the Faroe Islands to their boats and beaches for nearly a thousand years. Down in the tropics, around the islands of St. Vincent and the Grenadines, artisanal whaling is a younger trade, shaped by the legacies of slavery and colonialism but no less important to the local population. Each culture, Russell Fielding shows, has developed a distinct approach to whaling that preserves key traditions while adapting to threats of scarcity, the requirements of regulation, and a growing awareness of the humane treatment of animals. Yet these strategies struggle to account for the risks of regularly eating meat contaminated with methylmercury and other environmental pollutants introduced from abroad. Fielding considers how these and other factors may change whaling cultures forever, perhaps even bringing an end to this way of life. A rare mix of scientific and social insight, The Wake of the Whale raises compelling questions about the place of cultural traditions in the contemporary world and the sacrifices we must make for sustainability. Publication of this book was supported, in part, by a grant from Furthermore: a program of the J. M. Kaplan Fund.

Quagga and Zebra Mussels - Biology, Impacts, and Control, Second Edition (Hardcover, 2nd New edition): Thomas F Nalepa, Don W.... Quagga and Zebra Mussels - Biology, Impacts, and Control, Second Edition (Hardcover, 2nd New edition)
Thomas F Nalepa, Don W. Schloesser
R4,259 Discovery Miles 42 590 Ships in 10 - 15 working days

The introduction and rapid spread of two Eurasian mussel species, "Dreissena polymorpha "(zebra mussel) and "Dreissena rostriformis bugensis "(quagga mussel), in waters of North America has caused great concern among industrial and recreational water users. These invasive species can create substantial problems for raw water users such as water treatment facilities and power plants, and they can have other negative impacts by altering aquatic environments. In the 20 years since the first edition of this book was published, zebra mussels have continued to spread, and quagga mussels have become the greater threat in the Great Lakes, in deep regions of large lakes, and in the southwestern Unites States. Quagga mussels have also expanded greatly in eastern and western Europe since the first book edition was published.
Quagga and Zebra Mussels: Biology, Impacts, and Control, Second Edition provides a broad view of the zebra/quagga mussel issue, offering a historic perspective and up-to-date information on mussel research. Comprising 48 chapters, this second edition includes reviews of mussel morphology, physiology, and behavior. It details mussel distribution and spread in Europe and across North America, and examines policy and regulatory responses, management strategies, and mitigation efforts.
In addition, this book provides extensive coverage of the impact of invasive mussel species on freshwater ecosystems, including effects on water clarity, phytoplankton, water quality, food web changes, and consequences to other aquatic fauna. It also reviews and offers new insights on how zebra and quagga mussels respond and adapt to varying environmental conditions. This new edition includes seven video clips that complement chapter text and, through visual documentation, provide a greater understanding of mussel behavior and distribution.

Alternative Protein Sources in Aquaculture Diets (Hardcover): Chhorn. Lim, Cheng-Sheng Lee, Carl D Webster Alternative Protein Sources in Aquaculture Diets (Hardcover)
Chhorn. Lim, Cheng-Sheng Lee, Carl D Webster
R4,175 Discovery Miles 41 750 Ships in 10 - 15 working days

A unique resource that describes the ingredients included in an aquaculture diet, species profiles, processing methods, impacts to environment and industry, and more! Aquaculture is and will remain a major food producing sector in the future. To become more efficient and successful in the aquaculture industry, operations need to provide good nutrition. Alternative Protein Sources in Aquaculture Diets is a unique source describing the ingredients included in fish and crustacean diets, their nutrient compositions, species profiles, suitability for species, processing methods, and impacts of alternative ingredients on the environment and to the aquaculture industry. World-renowned nutritionists and feed technologists explore practical ways for the aquaculture industry to expand and remain competitive, and discuss ways to develop less expensive alternative sources or protein. Diet costs take up a huge chunk of operating expenditures, with fish meal being one of the most expensive ingredients in the aquaculture diet. Alternative Protein Sources in Aquaculture Diets provides detailed knowledge on the use of alternative plant and animal protein sources, offering opportunities to either partially or completely replace fish meal. This comprehensive, up-to-date text discusses the most widely used ingredients as well as various previously under-utilized ingredients which could be of significant potential in the future. The book is extensively referenced and includes numerous helpful tables to clearly present data. Topics discussed in Alternative Protein Sources in Aquaculture Diets (for finfish and crustacean species) include: * farmed fish diet requirements * reduction of waste through diet formulation * poultry by-product meal * meat packing by-products * soybean protein foodstuffs * cottonseed meal * lupins * unconventional plant protein supplements * and much, much more! Alternative Protein Sources in Aquaculture Diets is an essential resource for aquaculturists, nutritionists, feed formulators, feed mill operators, extension specialists, fish farmers and producers, ingredient suppliers, and policymakers.

The Red Sea Ecosystem and Fisheries (Hardcover, 1st ed. 2016): Dawit Tesfamichael, Daniel Pauly The Red Sea Ecosystem and Fisheries (Hardcover, 1st ed. 2016)
Dawit Tesfamichael, Daniel Pauly
R4,490 Discovery Miles 44 900 Ships in 7 - 11 working days

This book is the first comprehensive coverage of Red Sea fisheries to inform researchers and decision makers. The Red Sea is a geologically young sea, but also an area with the oldest record of human sea food exploitation. Examining the fisheries of the Red Sea has become extremely important to understand the ecosystem and the direct human impact of fishing on Red Sea ecosystems. This volume gives extensive data on different fisheries sectors identified and described for each country bordering the Red Sea. Furthermore, its catch and specific composition is also described over the period 1950 to 2010. Combined with the ecosystem model this useful information can uniquely help managing fisheries and ecosystems of the Red Sea.

Shrimp Farming and Mangrove Loss in Thailand (Hardcover, illustrated edition): Edward B. Barbier, Suthawan Sathirathai Shrimp Farming and Mangrove Loss in Thailand (Hardcover, illustrated edition)
Edward B. Barbier, Suthawan Sathirathai
R2,953 Discovery Miles 29 530 Ships in 10 - 15 working days

In many tropical countries, mangrove forests are a crucial component of coastal resources. Nowhere is this more evident than in Thailand where their continued destruction due to shrimp farm expansion is impacting upon forestry, fisheries and the quality of the coastal environment. In addition to the environmental damage caused, mangrove loss is also a serious social problem. Many people live and work among the mangrove forests and the destruction of the resources and ecological functions these forests provide affect the economic livelihoods and cultural heritage of many communities. Against these losses must be weighed the considerable commercial and foreign exchange benefits of shrimp aquaculture and production, which is a major export industry in Thailand. Through in-depth case studies of local communities in four distinct coastal areas in Southern Thailand, the authors are able to assess objectively the underlying economic causes, and consequences, of mangrove deforestation due to the expansion of shrimp farms. Economists, ecologists, sociologists and coastal management specialists will all welcome this unique inter-disciplinary appraisal of the ecological, economic and social implications of shrimp farm expansion and mangrove conversion. It will also be of particular value to international and national policymakers concerned with coastal management in tropical countries.

The Outlaw Ocean - Journeys Across the Last Untamed Frontier (Paperback): Ian Urbina The Outlaw Ocean - Journeys Across the Last Untamed Frontier (Paperback)
Ian Urbina
R445 R338 Discovery Miles 3 380 Save R107 (24%) Ships in 10 - 15 working days
The European Landing Obligation - Reducing Discards in Complex, Multi-Species and Multi-Jurisdictional Fisheries (Hardcover,... The European Landing Obligation - Reducing Discards in Complex, Multi-Species and Multi-Jurisdictional Fisheries (Hardcover, 1st ed. 2019)
Sven Sebastian Uhlmann, Clara Ulrich, Steven J. Kennelly
R1,263 R1,111 Discovery Miles 11 110 Save R152 (12%) Ships in 10 - 15 working days

This open access book provides a comprehensive examination of the European Landing Obligation policy from many relevant perspectives. It includes evaluations of its impacts at economical, socio-cultural, ecological and institutional levels. It also discusses the feasibility and benefits of several potential mitigation strategies. The book was timely published, exactly at the time where the Landing Obligation was planned to be fully implemented. This book is of significant interest to all stakeholders involved, but also to the general public of Europe and to other jurisdictions throughout the world that are also searching for ways to deal with by-catch and discard issues.

Stock Assessment - Quantitative Methods and Applications for Small Scale Fisheries (Hardcover): Vincent F Gallucci, Saul B.... Stock Assessment - Quantitative Methods and Applications for Small Scale Fisheries (Hardcover)
Vincent F Gallucci, Saul B. Saila, Daniel J. Gustafson, Brian J. Rothschild
R5,377 Discovery Miles 53 770 Ships in 10 - 15 working days

Stock Assessment: Quantitative Methods and Applications for Small Scale Fisheries is a book about stock assessment as it is practiced. It focuses on applications for small scale or artisanal fisheries in developing countries, however it is not limited in applicability to tropical waters and should also be considered a resource for students of temperate fishery management problems. It incorporates a careful sample design, various mathematical models as a basis for predicting consequences for stock exploitation, and discusses the impact of exploitation on non-targeted species. This was a unique concept involving a collaborative effort between U.S. and host country scientists to address issues of regional and global concern through innovative research.
Unlike other books on stock assessment that show mathematical models, this is the only book of its kind that discusses how an assessment is carried out. It looks at the field as a whole and includes sampling, age determination and acoustics.
The book represents the culmination of a nine-year program financed by the United States Agency for International Development to provide new or improved methods of stock assessment for artisanal fisheries.

Economics of Aquaculture (Paperback): Curtis M. Jolly, Howard A. Clonts Economics of Aquaculture (Paperback)
Curtis M. Jolly, Howard A. Clonts
R2,112 Discovery Miles 21 120 Ships in 10 - 15 working days

Economics of Aquaculture presents basic economic theory in a concise and logical format which is easily adaptable to practical application. Examples of economic solutions to common problems help you understand the need for economic application to aquaculture and the success that may come with sound economic planning and management. It also provides coverage of virtually all basic principles of microeconomics, farm management finance, and marketing applicable to the aquacultural industry. You will "walk" through the intricate maze of decisions which are necessary for success in the business environment.The regular and on-going business of aquacultural production and marketing is addressed as a continuous problem set for the student or producer. Business decisions are shown to be logical extensions of those in production and vice versa. A successful producer must be a successful business person if production is to remain an option. Thus, the real and logical need for economics in production is carefully presented.Additionally, producers and students alike will find that application of careful economic planning results in long-term viability for individual producers as well as community projects, cooperatives, or even governmental projects. Special sections in the book illustrate the savings or costs of right and wrong decisions as well as those related to short versus longer term planning and investment. Other topics covered in this book include: role of aquaculture in economic development fish demand and supply farm management and operation time value of money in the short- and long-term capital budgeting market structure and price theory government in aquacultureAlong with students, other readers will find the business help they need in Economics of Aquaculture. Professional aquaculturalists will find the topics of basic production economics, marketing, and cost analysis particularly relevant and governmental administrators will find the presentation of basic principles, time value of money, capital budgeting, and the role of government in aquaculture a valuable resource for years to come.

International Marketing - Sociopolitical and Behavioral Aspects (Hardcover): Erdener Kaynak International Marketing - Sociopolitical and Behavioral Aspects (Hardcover)
Erdener Kaynak
R3,438 Discovery Miles 34 380 Ships in 10 - 15 working days

Social, economic, political, business, and cultural environmental factors affect the international marketing operation and performance of international firms. This highly insightful volume focuses on four of the most significant forces with which companies must deal on an international level--macro international marketing issues, sociopolitical international marketing issues, international marketing strategies, and special international marketing topics. Within this framework, experts examine the impact of two major environmental factors, namely the social and political conditions, on international companies to adopt corresponding marketing techniques and practices in different international markets. They also explore how specific details of a country, such as income level, cultural attributes, consumer characteristics, laws, and politics, influence the market potential of international firms and thus the scale of the company operations. Indispensable reading for scholars, economists, and business people who are interested in marketing on a global scale.

Wastewater Management Through Aquaculture (Hardcover, 1st ed. 2018): B.B. Jana, R. N. Mandal, P. Jayasankar Wastewater Management Through Aquaculture (Hardcover, 1st ed. 2018)
B.B. Jana, R. N. Mandal, P. Jayasankar
R3,653 Discovery Miles 36 530 Ships in 10 - 15 working days

This volume provides state-of-the-art information on soil-water interactions in wastewater systems, characterization of wastewater, modes of treatment, safety of wastewater use, water conservation technologies involved in recycling of sewage in fish culture, biogeochemical cycling bacteria and nutrient dynamics, ecosystem resilient driven wastewater reclamation, bioremediation, aquaponics, ecological integrity, culture practices of fish farming, microbial food web phenomena, fish diseases, environmental economics of wastewater, environmental risk assessment, environmental law and regulations. Given its breadth of coverage, the book will be useful to researchers, teachers, students, administrators, planners, farmers and entrepreneurs interested in the profitable use of wastewater in the wastes-into-wealth framework of for the benefit of humanity, and in achieving the targets for sanitation and safe wastewater reuse by 2030, specified in the United Nations' Sustainable Development Goals. Concerns are growing about the quality and quantity of fresh water, as severe crises are expected in the near future. Climate change has further worsened the strain on inland water resources, with its major impacts on ecosystems and human life. It is most urgent to protect and conserve inland water resources to maintain vital ecosystem functions. Despite the immense nutrient potentials of wastewater in terms of phosphorus, nitrogen and potassium and increasingly high rates of urbanization-based wastewater generation, wastewater has traditionally been overlooked as a resource. This produces a threefold loss - environmental degradation, monetary losses from fertilizers, and water. As a result, municipal wastewater offers a win-win strategy for water conservation and environmental protection, while also turning waste into wealth in the form of fish biomass and allied cash crops. Wastewater-fed aquaculture refers to a unique, integrated biosystem in which the wastes generated by the first system are used by the next subsystem. In wastewater-fed aquaculture biosystems, the organic wastes are recycled into fish biomass mediated through a complex microbial/autotrophic/heterotrophic food web mechanism.

Aquaponic Gardening - A Step-by-Step Guide to Raising Vegetables and Fish Together (Paperback): Sylvia Bernstein Aquaponic Gardening - A Step-by-Step Guide to Raising Vegetables and Fish Together (Paperback)
Sylvia Bernstein
R436 R361 Discovery Miles 3 610 Save R75 (17%) Ships in 10 - 15 working days

Aquaponics is a revolutionary system for growing plants by fertilising them with the waste water from fish in a sustainable closed system. A combination of the best of aquaculture and hydroponics, aquaponic gardening is an amazingly productive way to grow organic vegetables, greens, herbs and fruits, while providing the added benefits of fresh fish as a safe, healthy source of protein. On a larger scale, it is a key solution to mitigating food insecurity, climate change, groundwater pollution and the impacts of overfishing on our oceans. This is the definitive do-it-yourself home manual, with an introduction by Charlie Price, head of Aquaponics UK. It focuses on giving you all the tools you need to create your own aquaponic system and enjoy healthy, safe, fresh and delicious food all year round. Starting with an overview of the theory, benefits and potential of aquaponics, this book goes on to explain: system location considerations and hardware components; the living elements - fish, plants, bacteria, and worms; and, putting it all together - starting and maintaining a healthy system. Aquaponics systems are completely organic. They are four to six times more productive and use 90 percent less water than conventional gardens. Other advantages include no weeds, fewer pests, and no watering, fertilising, bending, digging, or heavy lifting - in fact, there really is no down side! Anyone interested in taking the next step towards self-sufficiency will be fascinated by this practical, accessible and well-illustrated guide.

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
R780 Discovery Miles 7 800 Ships in 10 - 15 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.

Becoming Salmon - Aquaculture and the Domestication of a Fish (Hardcover): Marianne Elisabeth Lien Becoming Salmon - Aquaculture and the Domestication of a Fish (Hardcover)
Marianne Elisabeth Lien
R1,706 R1,343 Discovery Miles 13 430 Save R363 (21%) Ships in 10 - 15 working days

Becoming Salmon is the first ethnographic account of salmon aquaculture, the most recent turn in the human history of animal domestication. In this careful and nuanced study, Marianne Elisabeth Lien explores how the growth of marine domestication has blurred traditional distinctions between fish and animals, recasting farmed fish as sentient beings, capable of feeling pain and subject to animal-welfare legislation. Drawing on fieldwork on and off salmon farms, Lien follows farmed Atlantic salmon through contemporary industrial husbandry, exposing how salmon are bred to be hungry, globally mobile, and "alien" in their watersheds of origin. Attentive to both the economic context of industrial food production and the materiality of human-animal relations, this book highlights the fragile and contingent relational practices that constitute salmon aquaculture and the multiple ways of "becoming salmon" that emerge as a result.

The Outlaw Ocean - Journeys Across the Last Untamed Frontier (Paperback): Ian Urbina The Outlaw Ocean - Journeys Across the Last Untamed Frontier (Paperback)
Ian Urbina
R400 R343 Discovery Miles 3 430 Save R57 (14%) Ships in 7 - 11 working days
The Shrimp Book (Hardcover): Victoria Alday-Sanz The Shrimp Book (Hardcover)
Victoria Alday-Sanz
R3,697 R3,484 Discovery Miles 34 840 Save R213 (6%) Ships in 10 - 15 working days

This book brings together information often difficult to find, joining the worlds of aquaculture science and industry production, through the leveraging of their synergies and dependencies. It contains a wealth of scientific knowledge which can only be traced in a fragmented manner in specialised journals. It also includes the description of farming practices and the actual implementation of new technologies, information which is often presented in industry conferences, but rarely reaches publication.

Fish Behavior 2 - Ethophysiology (Hardcover): Jacques Brusle, Jean-Pierre Quignard Fish Behavior 2 - Ethophysiology (Hardcover)
Jacques Brusle, Jean-Pierre Quignard
R3,056 Discovery Miles 30 560 Ships in 7 - 11 working days

Advances in underwater exploration, in situ observation of fish populations, as well as the development of cutting-edge technologies, provide modern insights into behaviors and strategies of fish, whose cognitive abilities have long been underestimated and undervalued. Fish Behavior 2 presents current knowledge about fish biology, ecology and ethology. In light of the most recent scientific work, this book examines topics such as their reproductive behavior and the expression of their personalities. It also addresses issues associated with neurophysiological conditioning of behaviors, in relation to the structural and functional complexity of their brains. This book is intended for researchers, teachers, masters and doctoral students in biology and biogeography, engineers and technicians responsible for the development and protection of natural environments and public aquariums, in addition to aquaculturists, fishermen, environmentalists and ecologists.

Marine Fisheries Ecology (Paperback): Simon Jennings, Michel Kaiser, John D. Reynolds Marine Fisheries Ecology (Paperback)
Simon Jennings, Michel Kaiser, John D. Reynolds
R1,369 Discovery Miles 13 690 Ships in 10 - 15 working days


This topical and exciting textbook describes fisheries exploitation, biology, conservation and management, and reflects many recent and important changes in fisheries science. These include growing concerns about the environmental impacts of fisheries, the role of ecological interactions in determining population dynamics, and the incorporation of uncertainty and precautionary principles into management advice. The book draws upon examples from tropical, temperate and polar environments, and provides readers with a broad understanding of the biological, economic and social aspects of fisheries ecology and the interplay between them. As well as covering 'classical' fisheries science, the book focuses on contemporary issues such as industrial fishing, poverty and conflict in fishing communities, marine reserves, the effects of fishing on coral reefs and by-catches of mammals, seabirds and reptiles. The book is primarily written for students of fisheries science and marine ecology, but should also appeal to practicing fisheries scientists and those interested in conservation and the impacts of humans on the marine environment.

* particularly useful are the modelling chapters which explain the difficult maths involved in a user-friendly manner
* describes fisheries exploitation, conservation and management in tropical, temperate and polar environments
* broad coverage of 'classical' fisheries science
* emphasis on new approaches to fisheries science and the ecosystem effects of fishing
* examples based on the latest research and drawn from authors' international experience
* comprehensively referenced throughout
* extensively illustrated with photographs and line drawings

Ascorbic Acid In Aquatic Organisms - Status and Perspectives (Hardcover): Konrad Dabrowski Ascorbic Acid In Aquatic Organisms - Status and Perspectives (Hardcover)
Konrad Dabrowski
R5,588 Discovery Miles 55 880 Ships in 10 - 15 working days

We are just beginning to discover the importance of vitamin C in the health of natural and man-made ecosystems. Synthesis of ascorbic acid is well understood, but algae as the only source of ascorbate in the aquatic food pyramid has not been explored. There is an expanding field of the culture of aquatic organisms that demand formulated feeds to best meet their requirements for health, growth, and reproduction. With over 100 species now cultured for human consumption, the question arises as to whether we have reliable information for the dietary needs for vitamin C for even a small percentage of these organisms. A comprehensive approach to the role of vitamin C at the cellular level as well as in the aquatic food chains, this book discusses growth and reproduction, disease resistance, and toxicology of aquatic organisms. Ascorbic Acid in Aquatic Organisms was written as the offshoot of a special session on aquatic organisms and practical aquaculture at the 1998 World Aquaculture Society (WAS) meeting. This book reviews the research already available and identifies new directions for research. It is a unique combination of good nutrition research, ecology, and practical aquaculture (for instance brine shrimp enrichment). This interdisciplinary volume will appeal to marine fish culturists, aquatic biologists, comparative and evolutionary cellular physiologists, and environmental toxicologists.

Goods and Services of Marine Bivalves (Hardcover, 1st ed. 2019): Aad C. Smaal, Joao G. Ferreira, Jon Grant, Jens K. Petersen,... Goods and Services of Marine Bivalves (Hardcover, 1st ed. 2019)
Aad C. Smaal, Joao G. Ferreira, Jon Grant, Jens K. Petersen, Oivind Strand
R1,285 R1,132 Discovery Miles 11 320 Save R153 (12%) Ships in 10 - 15 working days

The aim of this open access book is to review and analyse the goods and services of bivalve shellfish. How they are defined, what determines the ecological functions that are the basis for the goods and services, what controversies in the use of goods and services exist, and what is needed for sustainable exploitation of bivalves from the perspective of the various stakeholders. The book is focused on the goods and services, and not on impacts of shellfish aquaculture on the benthic environment, or on threats like biotoxins; neither is it a shellfish culture handbook although it can be used in evaluating shellfish culture. The reviews and analysis are based on case studies that exemplify the concept, and show the strengths and weaknesses of the current applications. The multi-authored reviews cover ecological, economic and social aspects of bivalve goods and services. The book provides new insights for scientists, students, shellfish producers, policy advisors, nature conservationists and decision makers. This book is open access under the CC BY license.

Contesting Leviathan - Activists, Hunters, and State Power in the Makah Whaling Conflict (Paperback): Les Beldo Contesting Leviathan - Activists, Hunters, and State Power in the Makah Whaling Conflict (Paperback)
Les Beldo
R683 Discovery Miles 6 830 Ships in 10 - 15 working days

In 1999, off the coast of the Pacific Northwest, the first grey whale in seven decades was killed by Makah whalers. The hunt marked the return of a centuries-old tradition and, predictably, set off a fierce political and environmental debate. Whalers from the Makah Indian Tribe and anti-whaling activists from across the country have clashed for over twenty years, with no end to this conflict in sight. In Contesting Leviathan, anthropologist Les Beldo describes the complex judicial and political climate for whale conservation in the United States, and the limits of the current framework in which whales are treated as "large fish" managed by the National Marine Fisheries Service. Emphasizing the moral dimension of the conflict between the Makah, the US government, and anti-whaling activists, Beldo brings to light the lived ethics of human-animal interaction, as well as how different groups claim to speak for the whale--the only silent party in this conflict. A timely and sensitive study of a complicated issue, this book calls into question anthropological expectations regarding who benefits from the exercise of state power in environmental conflicts, especially where indigenous groups are involved. Vividly told and rigorously argued, Contesting Leviathan will appeal to anthropologists, scholars of indigenous culture, animal activists, and any reader interested in the place of animals in contemporary life.

The Economics of Salmon Aquaculture (Hardcover, 2nd Edition): Frank Asche, Trond Bjorndal The Economics of Salmon Aquaculture (Hardcover, 2nd Edition)
Frank Asche, Trond Bjorndal
R2,785 R2,633 Discovery Miles 26 330 Save R152 (5%) Ships in 10 - 15 working days

First published in 1990, The Economics of Salmon Aquaculture was the first book to systematically analyse the salmon aquaculture industry, from both a market and production perspective. Since publication of the first edition of this book, the salmon aquaculture industry has grown at a phenomenal rate, with salmon now being consumed in more than 100 countries worldwide. This second edition of a very popular and successful book brings the reader right up to date with all the major current issues pertaining to salmon aquaculture. Commencing with an overview of the production process in aquaculture, the following chapters provide in-depth coverage of the sources of the world s supply of salmon, the growth in productivity, technological changes, environmental issues, markets, market structure and competitiveness, lessons that can be learnt from the culture of other species, optimal harvesting techniques, production planning, and investment in salmon farms. Written by Frank Ashe and Trond Bjorndal, two of the world's leading experts in the economics of aquaculture, this second edition of The Economics of Salmon Aquaculture provides the salmon aquaculture industry with an essential reference work, including a wealth of commercially important information. This book is also a valuable resource for upper level students and professionals in aquaculture and economics, and libraries in all universities and research establishments where these subjects are studied and taught should have copies of this important book on their shelves.

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Claus Frimodt, Ian Dore Hardcover R2,458 R2,330 Discovery Miles 23 300
Spatial Pattern Dynamics in Aquatic…
Hong Li Paperback R1,755 Discovery Miles 17 550
Tarpons - Biology, Ecology, Fisheries
Stephen Spotte Hardcover R2,792 R2,640 Discovery Miles 26 400
The Aquatic Frontier - Oysters and…
Samuel P. Hanes Paperback R639 Discovery Miles 6 390
Success Factors for Fish Larval…
Luis Conceicao, Amos Tandler Hardcover R4,546 R4,270 Discovery Miles 42 700
Fish Behavior 1 - Eco-ethology
Jacques Brusle, Jean-Pierre Quignard Hardcover R3,063 Discovery Miles 30 630