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

Marine Policy - An Introduction to Governance and International Law of the Oceans (Hardcover, 2nd edition): Mark Zacharias,... Marine Policy - An Introduction to Governance and International Law of the Oceans (Hardcover, 2nd edition)
Mark Zacharias, Jeff Ardron
R4,496 Discovery Miles 44 960 Ships in 12 - 19 working days

Synthesizes all key aspects of marine governance encompassing institutions, science, law, and policy, ensuring the content is accessible for non-legal experts. This book will be essential reading for students taking marine affairs, science and policy courses. This new edition has been completely revised, updating text in line with recent advances and new chapters added. Pedagogical features for students are also included throughout.

Lead, Mercury and Cadmium in the Aquatic Environment - Worldwide Occurrence, Fate and Toxicity (Hardcover): Rachel Ann... Lead, Mercury and Cadmium in the Aquatic Environment - Worldwide Occurrence, Fate and Toxicity (Hardcover)
Rachel Ann Hauser-Davis, Natalia Soares Quinete, Leila Soledade Lemos
R4,782 Discovery Miles 47 820 Ships in 12 - 19 working days

This book presents an integrated and holistic discussion on cadmium, lead and mercury toxicity in aquatic environments, expanding general concepts on chemical speciation effects and exploring specific environmental toxicological issues, exposure routes, and bioanalytical approaches for their determination and assessments on their intracellular deleterious effects. It contains worldwide and regional aspects on cadmium, lead and mercury occurrence, fate, and toxicity, addressing key environmental exposure and health risk concerns to both humans and aquatic organisms. Our book is of interest to anyone conducting research in the broad fields of oceanography, geochemistry, ecotoxicology, and environmental and public health.

Marine Polysaccharides - Advances and Multifaceted Applications (Hardcover): Shakeel Ahmed, Aisverya Soundararajan Marine Polysaccharides - Advances and Multifaceted Applications (Hardcover)
Shakeel Ahmed, Aisverya Soundararajan
R3,622 Discovery Miles 36 220 Ships in 12 - 19 working days

In the past few decades, marine organisms, including macroalgae and microalgae, have been extensively explored as potential sources of bioactive compounds with applications in various fields such as pharmaceuticals, biomedicine, cosmetics and foodstuffs. Marine polysaccharides, such as chitin/chitosan, ulvans, fucans, alginates and carrageenans, are biochemical compounds with several important properties such as anticoagulant and/or antithrombotic, immunomodulatory, antitumor, antilipidemic, hypoglycemic, antibiotic, anti-inflammatory and antioxidant properties. Due to their biocompatible, nontoxic and biodegradable nature, marine polysaccharides offer a better alternative to be used in advancement of the biomedical field. This book focuses on marine polysaccharides; their derivatives, blends, composites and hydrogels; and their multifaceted applications in various fields. The book also discusses the various aspects of marine polysaccharides from the point of view of chemistry and related applications. It is an important reference for marine biotechnologists, natural product scientists, students, researchers and academicians working in the area of materials science, marine science and polymer chemistry.

Pacific Salmon & their Ecosystems - Status and Future Options (Hardcover, 1997 ed.): Deanna J. Stouder, Peter A. Bisson, Robert... Pacific Salmon & their Ecosystems - Status and Future Options (Hardcover, 1997 ed.)
Deanna J. Stouder, Peter A. Bisson, Robert J. Naiman
R6,174 Discovery Miles 61 740 Ships in 10 - 15 working days

The symposium "Pacific Salmon and Their Ecosystems: Status and Future Options', ' and this book resulted from initial efforts in 1992 by Robert J. Naiman and Deanna J. Stouder to examine the problem of declining Pacific salmon (Oncorhynchus spp.). Our primary goal was to determine informational gaps. As we explored different scientific sources, state, provincial, and federal agencies, as well as non-profit and fishing organizations, we found that the information existed but was not being communicated across institutional and organizational boundaries. At this juncture, we decided to create a steering committee and plan a symposium to bring together researchers, managers, and resource users. The steering committee consisted of members from state and federal agencies, non-profit organizations, and private industry (see Acknowledgments for names and affiliations). In February 1993, we met at the University of Washington in Seattle to begin planning the symposium. The steering committee spent the next four months developing the conceptual framework for the symposium and the subsequent book. Our objectives were to accomplish the following: (1) assess changes in anadromous Pacific Northwest salmonid populations, (2) examine factors responsible for those changes, and (3) identify options available to society to restore Pacific salmon in the Northwest. The symposium on Pacific Salmon was held in Seattle, Washington, January 10-12, 1994. Four hundred and thirty-five people listened to oral presentations and examined more than forty posters over two and a half days. We made a deliberate attempt to draw in speakers and attendees from outside the Pacific Northwest.

Mexican Aquatic Environments - A General View from Hydrobiology to Fisheries (Hardcover, 1st ed. 2019): Ana Laura Ibanez Mexican Aquatic Environments - A General View from Hydrobiology to Fisheries (Hardcover, 1st ed. 2019)
Ana Laura Ibanez
R2,908 Discovery Miles 29 080 Ships in 10 - 15 working days

Pursuing a multidisciplinary approach, this book highlights current challenges in, and potential solutions to, environmental water management in Mexico. It includes an essential review of current literature and state of the art research, providing a one-stop resource for researchers, graduate students and environmental water managers alike. The result of a cooperation between 35 researchers from seven Mexican academic institutions, two Federal Commissions and one international organization, the book links science to practice for living organisms and their environment, while also addressing anthropogenic effects on our water ecosystems. Particularly the book addresses the following subjects: Biodiversity in inland waters, physical and chemical characterization of inland waters, physico-chemical characterization of Mexican coastal lagoons, microbiota in brackish ecosystems, diversity associated with southern Mexico's pacific coral reefs, fry fish stockings in aquatic epicontinental systems, a review of tuna fisheries in Mexico, fishery resource management challenges stemming from climate change, aquatic invasive alien species, harmful algal blooms, and aquatic protected areas, related ecological and social problems and the importance for fisheries' yield.

Fish Defenses Vol. 2 - Pathogens, Parasites and Predators (Paperback): Giacomo Zaccone Fish Defenses Vol. 2 - Pathogens, Parasites and Predators (Paperback)
Giacomo Zaccone
R1,760 R1,587 Discovery Miles 15 870 Save R173 (10%) Ships in 12 - 19 working days

Dramatic changes in the environment, including habitat degradation and climate change, have focused attention on how individuals and populations respond to a shifting biotic and abiotic landscape. A critical step toward meeting this goal is a clear understanding of the capacity of individuals to defend themselves against threats. Changes in water quality and temperature have direct and indirect effects on fishes. Defensive responses can occur at many levels, from cellular to behavioral actions. The authors in this volume have attempted to provide a general view of the current state of knowledge of fish defenses with respect to pathogens, parasites, and predators, and to point out gaps where further study is needed.

Governing Sustainable Seafood (Hardcover): Peter Oosterveer, Simon Bush Governing Sustainable Seafood (Hardcover)
Peter Oosterveer, Simon Bush
R4,471 Discovery Miles 44 710 Ships in 12 - 19 working days

Taking a social science approach, this book explores the governance of sustainable seafood, which is fundamental to food and nutrition security as well as being an important source of income and employment in many regions. Due to the importance of protein and other fishery and aquaculture by-products, many wild fisheries are coming under pressure, and this increasing demand has created a strong driver to expand aquaculture. As a result, the social and environmental sustainability of these production systems have come into question. The authors of the book explore the governance of sustainable seafood, taking into account the rise of social movements through environmental non-governmental organisations, the nature and perceived limits of government regulation within and beyond the state, and the promise of market-based approaches to governance such as ecolabelling. The book focuses on how concern over sustainable seafood has been translated into different current forms of governance. It then assesses what alternative governance approaches are starting to emerge that combine movements, states and markets for sustainable seafood production and consumption, and their effects. The book concludes with a vision for the future through key principles for evaluating the collective impact of governing sustainable seafood. This timely volume will be key reading for researchers interested in fisheries and aquaculture governance, as well as coastal and marine policies and sustainable food movements more broadly. It will also be of interest to practitioners and policymakers engaged in creating fishery policies and sustainable fishery development.

Live Feeds in Marine Aquaculture (Hardcover, New): J Stottrup Live Feeds in Marine Aquaculture (Hardcover, New)
J Stottrup
R6,140 Discovery Miles 61 400 Ships in 12 - 19 working days

As the expansion in world aquaculture continues at a very high rate, so does the need for information on feeding of cultivated fish and shellfish. In the larval and juvenile phases of many species, the use of manufactured feed is not possible. This important book covers in detail the biology and culture of the main live prey and microalgae used as feeds in the aquaculture of major commercial species including shrimps, sea bass, halibut, cod and bivalves.


Contents include comprehensive details of the status of marine aquaculture in relation to live prey, and chapters covering the biology, production, harvesting, processing and nutritional value of microalgae and the main prey species: rotifers, "Artemia" and copepods.


The editors have drawn together an impressive international team of contributors, providing a work that is set to become the standard reference and practical guide on the subject for many years to come.


"Live Feeds in Marine Aquaculture" is an essential purchase for anyone involved in marine aquaculture, including fish farmers, researchers, and personnel in feed and equipment companies supplying the aquaculture trade. An extremely valuable tool as a reference and practical manual for students and professionals alike; libraries in all universities and research establishments where biological and aquatic sciences and aquaculture are studied and taught, should have copies available on their shelves.

Handbook of Nutrient Requirements of Finfish (1991) (Paperback): Newton Castagnolli, C. Young Cho, Colin B. Cowey, Ronald W.... Handbook of Nutrient Requirements of Finfish (1991) (Paperback)
Newton Castagnolli, C. Young Cho, Colin B. Cowey, Ronald W. Hardy, Silas S.O. Hung, …
R1,272 R1,136 Discovery Miles 11 360 Save R136 (11%) Ships in 12 - 19 working days

A one-of-a-kind book for researchers interested in finfish nutrition Handbook of Nutrient Requirements of Finfish provides a summary of qualitative and quantitative nutrient requirements for almost all cultured finfish for which a significant amount of nutritional information now exists. Information is presented by species and includes how each species is cultured, an index of production, regional locations where each species is being cultured, examples of purified or test diets and special conditions required for laboratory studies, nutrient requirements and practical diet formulation. Discussions of special diets and feeding practices are included for certain species. This book will be a useful guide for students, researchers, practicing nutritionists, aquaculturists, and feed manufacturers interested in fish nutrition.

Biology and Ecology of Edible Marine Bivalve Molluscs (Hardcover): Ramasamy Santhanam Biology and Ecology of Edible Marine Bivalve Molluscs (Hardcover)
Ramasamy Santhanam
R4,099 Discovery Miles 40 990 Ships in 12 - 19 working days

This comprehensive volume provides a plethora of first-hand information on the diversity, biology, and ecology of edible marine bivalve molluscs. It covers the biology of edible marine bivalves; profiles about 180 species, providing information on their habitat, distribution, morphology, food and feeding, reproduction, conservation status, etc.; discusses their nutritional values; examines their pharmaceutical value; and looks at their diseases and parasites. This abundance of knowledge is presented in an easy-to-read style with informative illustrations. Marine bivalve molluscs play important roles in the marine ecosystems by filtering water and serving as habitat and prey for a variety of sea life. This diverse group of species, estimated at around 9,200, inhabits virtually the entire world's oceans, from the balmy tropics to the sub-zero Arctic, and from deep oceans to sandy and rocky shorelines. Among the marine bivalves, a total of 180 species (including mussels, oysters, scallops, cockles, and clams) have long been a part of the diet of coastal human populations. Many species of marine bivalves are also commercially important for other purposes, such as pearls and shells for jewelry and decoration. The volume, part of the Biology and Ecology of Marine Life book series, will be of great use to students and researchers in fisheries science, marine biology, aquatic biology, and zoology.

Nutritional Marine Life (Paperback): Ramasamy Santhanam Nutritional Marine Life (Paperback)
Ramasamy Santhanam
R1,985 Discovery Miles 19 850 Ships in 12 - 19 working days

The nutritional benefits of marine flora and fauna are well known. Fish and crustaceans provide high-quality sources of amino acids-nutritionally important proteins found in only small amounts in cereals and grains. Nutrients and minerals in seafood can improve brain development and reproduction and there are strong links between fish and heart health. Similarly, other organisms such as phytoplankton and invertebrates possess several nutrients of health importance. All of these benefits are critical to global nutrition and particularly important to food-deficient, low-income countries. The first book of its kind, Nutritional Marine Life explores the nutritional characteristics of the different species of the following groups of edible marine life: Phytoplankton Seaweeds and marsh plants Jellyfish Crustaceans Mollusks Echinoderms Prochordate Fish Turtles Mammals For each species, the book discusses its classification, common name, habitat, global distribution, biological features, and nutritional facts. The highly accessible style and high-quality photographs make it easy to identify nutritionally and commercially important marine species. The book is ideal for students and researchers in fisheries and aquaculture and in related marine biology and biotechnology disciplines. It is also suitable as a reference for practitioners in those fields as well as dieticians, food scientists, and physicians interested in knowing about the health benefits of seafood.

Physiology of Fish in Intensive Culture Systems (Hardcover, 1996 ed.): Gary A. Wedemeyer Physiology of Fish in Intensive Culture Systems (Hardcover, 1996 ed.)
Gary A. Wedemeyer
R5,726 Discovery Miles 57 260 Ships in 10 - 15 working days

This exciting new reference offers a wealth of practical and technical information on the chemical, physical, and biological effects of intensive rearing conditions on hatchery fish, and the adverse effect these factors can have on their health and physical condition. A unique combination of theory and practical applications is presented throughout the book, providing the scientific basis for managing water quality, fish cultural procedures, and the biological interactions of the fish being produced to prevent diseases and costly production losses. The book begins with a discussion of the physiological functioning of fish under normal conditions. It then explains the interactions between fish and the chemical factors in the rearing environment, including effects of the algal toxins that currently cause serious economic losses in freshwater and marine aquaculture operations world-wide. The next chapter covers the physiological effects of common fish cultural procedures, with emphasis on crowding (density tolerance), handling, and transportation, and effects on smolt development of anadromous salmonids. This section is followed by a discussion of the stress and disease problems that can result from biological interactions between the fish themselves and between fish and facultative and obligate microbial pathogens present in the rearing environment. Emphasis is on methods of preventing stress and disease problems in this section. The book concludes by exploring the biological, physical, and chemical methods of minimizing the fish pathogen load in hatchery water supplies. Thorough and complete, this indispensable resource provides professionals in fishery, biology, aquaculture, and naturalresource management with the basic technical knowledge needed to improve management of the interactions between fish and the chemical, physical, and biological factors in the rearing environment. In addition, this book will serve as a useful text for undergraduate and graduate students enrolled in fishery, biology, and zoology.

Reproductive Biotechnology in Finfish Aquaculture (Hardcover, 1st ed): C. -S Lee, E. M. Donaldson Reproductive Biotechnology in Finfish Aquaculture (Hardcover, 1st ed)
C. -S Lee, E. M. Donaldson
R6,420 R4,392 Discovery Miles 43 920 Save R2,028 (32%) Ships in 12 - 19 working days

The successful reproduction of cultured brood stock is essential to the sustainable aquaculture of aquatic organisms. This book describes recent advances in the field of finfish reproductive biotechnology. The chapters in this volume are written by eminent scientists who review the progress and assess the status of biotechnology research that is applicable to the reproduction of finfish species for aquaculture. A wide range of topics is included starting with broodstock technologies such as broodstock genetics, broodstock nutrition, environmental control of maturation and impacts of stress on broodstock, gametes and progeny.


The volume includes technologies for induction of ovulation and spermiation using synthetic hypothalamic peptides. Gamete technologies which are described include cryopreservation, chromosome set manipulation, disease prevention and control for gametes and embryos and the development of transgenic fish with enhanced production characteristics. Genetic and endocrine technologies for the production of monosex male and female fish stocks are also described.


The closing chapter summarizes the discussion of each topic at the workshop, provides recommendations to industry and describes priorities of research and development. Researchers as well as teaching faculty in the aquaculture field will find this volume of great value.

Recreational Fisheries: Social, Economic and Management Aspects (Hardcover): Hickley Recreational Fisheries: Social, Economic and Management Aspects (Hardcover)
Hickley
R5,838 Discovery Miles 58 380 Ships in 10 - 15 working days

This valuable collection of overview papers and case studies, produced by the European Inland Fisheries and Advisory Commission (EIFAC) for FAO, brings together international experts to examine all aspects of recreational fisheries in inland waters including: -- current status and trends in recreational fisheries; -- interactions between recreational fisheries and other sectors; -- socio--economic aspects of recreational fisheries; -- criteria for the management of recreational fisheries -- priorities for research and development including education and training; -- the future of recreational fisheries over the next decade An attempt is made to identify the factors which influence, enhance and inhibit the present use and future development of recreational fisheries, to develop strategic guidelines for the effective management of recreational fisheries, and to recognise best practice for fishermen taking part in recreational fishing.

Biology and Ecology of Venomous Stingrays - Biology and Ecology of Marine Life (Hardcover): Ramasamy Santhanam Biology and Ecology of Venomous Stingrays - Biology and Ecology of Marine Life (Hardcover)
Ramasamy Santhanam
R3,601 Discovery Miles 36 010 Ships in 12 - 19 working days

This comprehensive book provides first-hand information on the diversity, biology, and ecology of venomous stingrays of freshwater, brackish, and marine ecosystems. Each year thousands of injuries to swimmers and surfers are reported, with 750 to 1,500 stingray injuries reported each year in the US alone. As more vacationers spend their leisure time exploring coasts and tropical reefs, often in isolated areas without immediate access to advanced health care, there will be greater potential for stingray injuries. A thorough understanding about the diversity of stingrays of marine and freshwater ecosystems and their injuries and envenomations would largely improve the public health community's ability to better manage and to prevent stingray injuries. This volume fills that gap. With over 200 photos and illustrations, this book shows the characteristics of venomous stingray families along with other profile information, such as common name, geographical distribution, diagnostic features, reproduction, predators, parasites, the International Union for Conservation of Nature's conservation status. Importantly, it includes valuable information on stingray injuries, envenomation, and medical management. This volume will be very informative for students of fisheries science, marine biology, aquatic biology, and environmental sciences, and will become a standard reference for marine professionals, health practitioners, and college and university libraries, and as a helpful on-board

Advances in Fisheries Bioeconomics - Theory and Policy (Hardcover): Juan Carlos Seijo, Jon G Sutinen Advances in Fisheries Bioeconomics - Theory and Policy (Hardcover)
Juan Carlos Seijo, Jon G Sutinen
R4,467 Discovery Miles 44 670 Ships in 12 - 19 working days

Efforts to effectively conserve and manage marine resources are facing increasing complexity of environmental and governance challenges. To address some of these challenges, this book presents advancements in fisheries bioeconomics research that provides significant ideas for addressing emerging environmental and fisheries management issues. Advances in Fisheries Bioeconomics gives insights into innovative approaches dealing with these issues, as well as novel ideas on changes in fisheries management paradigms. With contributions from leading experts in the field, this book offers an examination of a number of topics including: ecosystem based fisheries management; by-catch management and discard bans; the number of players in the fisheries game; the effects of ocean acidification; and the trends and impacts of eco-labeling and eco-certification of fisheries. Through integrating resource biology and ecology with the economics of fishers' behaviour, the authors provide valuable analysis of the current issues in fisheries management. This book will be of interest to those on advanced courses in fisheries science, natural resource biology and ecology, and environmental and natural resource economics. It will also appeal to researchers, policy makers, and advocacy groups around the world.

Transdisciplinary Marine Research - Bridging Science and Society (Hardcover): Silvia Gomez, Vera Koepsel Transdisciplinary Marine Research - Bridging Science and Society (Hardcover)
Silvia Gomez, Vera Koepsel
R4,042 Discovery Miles 40 420 Ships in 12 - 19 working days

- draws on the expertise of marine researchers from across the natural and social sciences - examines how the tools of transdisciplinarity can be used to return us to a sustainable co-existence with the ocean - draws on case studies from the nexus of the research and practices of engagement with a variety of stakeholder groups around the globe - will be of great interest to students and scholars studying marine science and ocean research across the natural and social sciences - will also be of interest to those looking to build a greater understanding of transdisciplinary research and knowledge co-production

From the Forest to the Sea - Public Lands Management and Marine Spatial Planning (Paperback): Morgan Gopnik From the Forest to the Sea - Public Lands Management and Marine Spatial Planning (Paperback)
Morgan Gopnik
R1,554 Discovery Miles 15 540 Ships in 12 - 19 working days

The management of common pool resources and publicly-owned areas is fraught with difficulty. This book explores the long, complex, and frequently contentious history of public lands management in the United States in order to draw lessons for the emerging field of marine spatial planning (MSP). The author first establishes that these two seemingly different settings are in fact remarkably similar, drawing on established theories of policy analysis. The work then examines the management of US National Forests over the past 120 years, including three place-based case studies, to discover recurring themes. The analysis shows how different management approaches evolved over time in response to changing laws and cultural norms, producing outcomes favored by different constituencies. This history also reveals the ambiguities and contradictions inherent in multiple-use management of any public space. Next, the book analyzes recent efforts to advance MSP, both in the US and globally, showing how they mirror past experiences in National Forest management, including similar disagreements among stakeholders. In conclusion the author suggests how those within ocean-related sectors - government, academia, industry, and environmental groups - might achieve their individual and collective goals more effectively based on lessons from the public lands setting.

Handbook of Nutrient Requirements of Finfish (1991) (Hardcover): Newton Castagnolli, C. Young Cho, Colin B. Cowey, Ronald W.... Handbook of Nutrient Requirements of Finfish (1991) (Hardcover)
Newton Castagnolli, C. Young Cho, Colin B. Cowey, Ronald W. Hardy, Silas S.O. Hung, …
R4,019 Discovery Miles 40 190 Ships in 12 - 19 working days

A one-of-a-kind book for researchers interested in finfish nutrition Handbook of Nutrient Requirements of Finfish provides a summary of qualitative and quantitative nutrient requirements for almost all cultured finfish for which a significant amount of nutritional information now exists. Information is presented by species and includes how each species is cultured, an index of production, regional locations where each species is being cultured, examples of purified or test diets and special conditions required for laboratory studies, nutrient requirements and practical diet formulation. Discussions of special diets and feeding practices are included for certain species. This book will be a useful guide for students, researchers, practicing nutritionists, aquaculturists, and feed manufacturers interested in fish nutrition.

Aquaculture Microbiology and Biotechnology, Volume Two (Paperback): Didier Montet, Ramesh C. Ray Aquaculture Microbiology and Biotechnology, Volume Two (Paperback)
Didier Montet, Ramesh C. Ray
R2,527 Discovery Miles 25 270 Ships in 12 - 19 working days

Fish and shrimp producing industries generate huge amounts of wastes in form of viscera, scales, waste water, etc. Applications of microorganisms and/or microbesbased products have contributed significantly in solving many of these problems associated with aquaculture and waste management. This book addresses strategies for control of bacterial infection in farmed aquatic organism products. It covers: spoilage of fresh fish, microorganisms and processed seafoods, microbiological safety and quality of processed shrimps and fish and molecular detection of seafood borne human pathogenic bacteria.

Ocean Energy - Governance Challenges for Wave and Tidal Stream Technologies (Hardcover): Glen Wright, Sandy Kerr, Kate Johnson Ocean Energy - Governance Challenges for Wave and Tidal Stream Technologies (Hardcover)
Glen Wright, Sandy Kerr, Kate Johnson
R4,926 Discovery Miles 49 260 Ships in 12 - 19 working days

Energy from wave and tidal power is a key component of current policies for renewable sources of energy. This book provides the first comprehensive exploration of legal, economic, and social issues related to the emerging ocean energy industry, in particular wave and tidal energy technologies. This industry is rapidly developing, and considerable technical literature has developed around the technology. However, it is shown that challenges relating to regulation and policy are major impediments to industry development, and these aspects have not previously been sufficiently highlighted and studied. The book informs policymakers, industry participants, and researchers of the key issues in this developing field. Ocean energy is considered in the context of the blue economy and an industrialising ocean, and the topics covered include: development of policy (policy instruments, risk and delay in technology development); legal aspects (consenting processes, resource management, impact assessment); human interactions (conflicts, consultation, community benefits); and spatial planning of the marine environment. While offshore wind energy, sited in the oceans but not strictly derived from the ocean, is not the primary focus of the book, there is also discussion of the similarities and differences between offshore wind and wave and tidal power policy dimensions.

Biology and Ecology of Pike (Hardcover): Christian Skov, P. Anders Nilsson Biology and Ecology of Pike (Hardcover)
Christian Skov, P. Anders Nilsson
R5,856 Discovery Miles 58 560 Ships in 12 - 19 working days

This book sets out to bridge the order scales among pike researchers, populations, communities, management, and fisheries. It emphasizes the progress of pike research during the last two decades, during which the order-bridging approach emerged. This framework underpins the text and the message, to convey its importance to pike research and to fish research in general. In addition, a considerable part of the book is devoted to management implications and highlights aspects of human dimensions in recreational fisheries.

Sex Determination in Fish (Paperback): T. J Pandian Sex Determination in Fish (Paperback)
T. J Pandian
R2,524 Discovery Miles 25 240 Ships in 12 - 19 working days

This book is the first to report that research in allogenics/xenogenics has conclusively shown that fishes have retained bisexual potency even after sexual maturity and spermiation. The XY genotype found in the unexpected female phenotypes sired by supermales (Y1Y2) and androgenic males (Y2Y2) points out the need to employ sex specific molecular markers to identify the true genotype of a juvenile, which matures either as a male or female, depending upon the sex of its pair (female or male) and thereby critically assessing the environmental role in sex determination. This book is meant to assist molecular biologists in the search of sex determining gene(s), fishery biologists endeavouring to develop techniques for profitable monosex aquaculture and ecologists interested in conservation of fishes and their genomes.

The Biology of Lungfishes (Paperback): Jorden Morup Jorgensen, Jean Joss The Biology of Lungfishes (Paperback)
Jorden Morup Jorgensen, Jean Joss
R2,411 Discovery Miles 24 110 Ships in 12 - 19 working days

The Biology of Lungfishes presents an up-to-date collection of reviews on some of the most important aspects of the life of lungfishes. The book draws on contributions from well-known experts with a long record of scientific work within their respective fields. The general natural history of the three genera of lungfishes, the fascinating fossil story, and modern ideas of lungfish phylogeny form the main part of the text. The book also covers the morphology and physiology of various organs.

Northeast Pacific Shark Biology, Research and Conservation Part A, Volume 77 (Hardcover): Shawn Larson, Dayv Lowry Northeast Pacific Shark Biology, Research and Conservation Part A, Volume 77 (Hardcover)
Shawn Larson, Dayv Lowry
R4,872 Discovery Miles 48 720 Ships in 12 - 19 working days

Northeast Pacific Shark Biology, Research and Conservation, Part A, Volume 77 highlights the biological attributes of, and the conservation efforts targeted at, populations of vulnerable sharks in the Northeastern Pacific Ocean bordering the west coast of the United States, one of the most economically and ecologically important oceanic regions in the world. Updates in this new volume include chapters on Biodiversity, Conservation and Life History of Northeastern Pacific Chondrichthyans, a Review of current genetic analyses of Northeast Pacific sharks and conservation implications, and a section on the Trophodynamics and ecological impacts of eastern North Pacific sharks.

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