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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > Fishes (ichthyology)

Hake - Biology, fisheries and markets (Paperback, Softcover reprint of the original 1st ed. 1995): Jurgen Alheit, T.J. Pitcher Hake - Biology, fisheries and markets (Paperback, Softcover reprint of the original 1st ed. 1995)
Jurgen Alheit, T.J. Pitcher
R5,766 Discovery Miles 57 660 Ships in 10 - 15 working days

The Chapman and Hall Fish and Fisheries Series occasionally includes books devoted to a single taxon of fish that are of particular interest to fish and fisheries science. All three previous books of this type (Cichlid Fishes, Cyprinid Fishes, Sea Bass) have included important material on commercial fishery exploitation, but Hake: Biology, fisheries and markets, number 15 in the Series, is the first book that focuses on a major global fishery resource. This book brings together detailed analyses of the ocean habitats, biology, ecology, assessment and management of all the hake fisheries of the world for the first time. Globally, there are ten major world fisheries for 12 species of hake on both sides of the North and the South Atlantic, the Mediterra nean, the eastern North and South Pacific and New Zealand. The book includes an overview of industrial markets and products of hake. Hake fisheries are of particular economic interest as their location spans almost a complete spectrum of industrial development from major industrial countries like USA, Canada, Spain and Italy through New Zealand, South Africa, Argentina and Chile to Morocco, Peru, Mauritania, Namibia and Angola."

The Senses of Fish - Adaptations for the Reception of Natural Stimuli (Hardcover, 2004 ed.): Gerhard von der Emde, Joachim... The Senses of Fish - Adaptations for the Reception of Natural Stimuli (Hardcover, 2004 ed.)
Gerhard von der Emde, Joachim Mogdans, B.G. Kapoor
R5,153 R4,513 Discovery Miles 45 130 Save R640 (12%) Ships in 12 - 17 working days

Fish comprise more than 50% of all living vertebrates and are found in a wide range of highly diverse habitats like the deep sea, the shoreline, tide pools, tropical streams and sweetwater ponds. During evolution, the senses of fish have adapted to the physical conditions of the environment in which different species live. As a result, the senses of fish exhibit a remarkable diversity that allows different species to deal with the physical constraints imposed by their habitat. In addition, fish have evolved several new' sensory systems that are unique to the aquatic environment.
In this book, examples of adaptation and refinement are given for six sensory systems: The visual system, The auditory system, The olfactory system, The mechanosensory lateral line system, The taste system, The electrosensory system. In each case, the environmental conditions under which a particular group of fish lives are analyzed. This is followed by a description of morphology and physiology of the sensory system and by an evaluation of its perceptional capabilities. Finally, the sensory adaptations to the particular conditions that prevail in the habitat of a species are highlighted.
The various examples from different groups of fish presented in this book demonstrate the impressive capability of fish sensory systems to effectively overcome physical problems imposed by the environment.

Fish Energetics - New Perspectives (Paperback, Softcover reprint of the original 1st ed. 1985): Peter Tytler, Peter Calow Fish Energetics - New Perspectives (Paperback, Softcover reprint of the original 1st ed. 1985)
Peter Tytler, Peter Calow
R1,538 Discovery Miles 15 380 Ships in 10 - 15 working days

It is almost thirty years since Professor G. G. Winberg established the basis for experimental studies in fish energetics with the publication of his monograph, Rate of Metabolism and Food Requirements of Fishes. His ultimate aim was to develop a scientific approach to fish culture and management, and the immense volume of literature generated in the ensuing years has been mainly in response to the demand for information from a rapidly expanding, world-wide aquaculture industry and to the shortcomings of contemporary practices in fisheries management. The purpose of this book is not to review this literature compre hensively, but, assuming an informed readership, to focus attention on topics in which new knowledge and theory are beginning to be applied in practice. Most emphasis has been placed on food; feeding; production (growth and reproduction) and energy budgeting, as these have most influence on the development of fish culture. Some chapters offer practical advice for the selection of methods, and warn of pitfalls in previous approaches. In others the influence of new theory on the interpretation of studies in fish energetics is discussed in the context of resource allocation and adaptation. We hope that the scope of material presented here will have sufficient interest and value to help significantly to fulfil Winberg's original objectives.

Frog Neurobiology - A Handbook (Paperback, Softcover reprint of the original 1st ed. 1976): R. Llinas, W. Precht Frog Neurobiology - A Handbook (Paperback, Softcover reprint of the original 1st ed. 1976)
R. Llinas, W. Precht
R3,348 Discovery Miles 33 480 Ships in 10 - 15 working days

In review, the amount of information available on the morphological and func tional properties of the frog nervous system is very extensive indeed and in certain areas is the only available source of information in vertebrates. Further more, much of the now classical knowledge in neurobiology was originally ob tained and elaborated in depth in this vertebrate. To cite only a few examples, studies of nerve conduction, neuromuscular transmission, neuronal integration, sense organs, development, and locomotion have been developed with great detail in the frog and in conjunction provide the most complete holistic descrip tion of any nervous system. Added to the above considerations, the ease with which these animals may be maintained (both as adults and during development) and the advantage of their lower cost as compared with other vertebrate forms make the frog one of the most important laboratory animals in neurobiology. With these thoughts in mind, we decided to compile this volume. Our goal in doing so was to assemble as much as possible of the information available on frog neurobiology and to have the different topics covered by authorities in each of the fields represented. To keep the handbook restricted to one volume, we found it necessary to omit the large field of amphibian muscle neurobiology, which has already been summarized in various other publications."

Fish Physiology: Recent Advances (Paperback, Softcover reprint of the original 1st ed. 1986): Stefan Nilsson Fish Physiology: Recent Advances (Paperback, Softcover reprint of the original 1st ed. 1986)
Stefan Nilsson
R1,503 Discovery Miles 15 030 Ships in 10 - 15 working days

Fishes are very successful vertebrates and have adapted to a wide range of environmental conditions, from the deep ocean to the smallest brook or pond. The physiological background to these environmental adaptations is, obviously, far from clear, and provides fish physiologists with many challenges. The number of extant fish species has been estimated to be in excess of 20000, and only relatively few of these have been subject to physiological studies. Yet among these animals can be found many physiological systems different from those of the land-dwelling vertebrates, and also systems similar to those of the 'higher' vertebrates but at a different level of phylogenetic development. Apart from the rapidly increasing interest in basic fish physi ology, the last few years have seen a dramatic increase in applied research, aimed primarily in two directions: fish culture and envi ronmental toxicology. Physiological research is of vital importance in both these fields, and basic fish physiology is a necessary base for the applied research. This book is intended for a wide readership among senior undergraduate, postgraduate and research students, as well as uni versity teachers and researchers in zoology, physiology, aqua culture and biology generally. The book focuses on five major areas of basic and applied research: haemopoiesis, acid-base regu lation, circulation, gastro-intestinal functions and physiological toxicology. The chapters will serve as introductions to these fields, as well as up-to-date reviews of the most recent advances in the research areas."

The Eel - Biology and Management of Anguillid Eels (Paperback, Softcover reprint of the original 1st ed. 1977): F. Tesch The Eel - Biology and Management of Anguillid Eels (Paperback, Softcover reprint of the original 1st ed. 1977)
F. Tesch
R1,587 Discovery Miles 15 870 Ships in 10 - 15 working days

by Dr P .H. Greenwood British Museum (Natural History), London Dr Tesch's wide ranging account of anguillid eels impinges on the interests of many biologists; it is not simply a specialized tome narrowly aimed at ichthyologists and fishery scientists, rather it provides a source of primary reference and a comprehensive sununary of informa tion that is not likely to be superseded for a long time. It is significant that the bibliography includes references to learned journals concerned with physiology, pharmacology, taxonomy, genetics, zoology, endo crinology, botany, ecology and environmental interactions. Such is the breadth of interest in the Anguillidae. Few fish species have been subjected to as detailed review as Dr Tesch gives for the (wo Atlantic species of Anguilla. An equally comprehensive resume of research into the fourteen, rather less well-studied Indo Pacific species gives balance and reciprocal illumination to several biological problems posed by these similar but quite distinctive species."

The Visual System of Fish (Paperback, Softcover reprint of the original 1st ed. 1990): Ron Douglas, Mustafa Djamgoz The Visual System of Fish (Paperback, Softcover reprint of the original 1st ed. 1990)
Ron Douglas, Mustafa Djamgoz
R3,002 Discovery Miles 30 020 Ships in 10 - 15 working days

A question often asked of those of us who work in the seemingly esoteric field of fish vision is, why? To some of us the answer seems obvious - how many other visual scientists get to dive in a tropical lagoon in the name of science and then are able to eat their subjects for dinner? However, there are better, or at least scientifically more acceptable, reasons for working on the visual system of fish. First, in terms of numbers, fish are by far the most important of all vertebrate classes, probably accounting for over half (c. 22 000 species) of all recognized vertebrate species (Nelson, 1984). Furthermore, many of these are of commercial importance. Secondly, if one of the research aims is to understand the human visual system, animals such as fish can tell us a great deal, since in many ways their visual systems, and specifically their eyes, are similar to our own. This is fortunate, since there are several techniques, such as intracellular retinal recording, which are vital to our understanding of the visual process, that cannot be performed routinely on primates. The cold blooded fish, on the other hand, is an ideal subject for such studies and much of what we know about, for example, the fundamentals of information processing in the retina is based on work carried out on fish (e. g. Svaetichin, 1953).

Ecology and Conservation of Fishes (Hardcover): Harold M Tyus Ecology and Conservation of Fishes (Hardcover)
Harold M Tyus
R3,096 Discovery Miles 30 960 Ships in 12 - 17 working days

Written as a stand-alone textbook for students and a useful reference for professionals in government and private agencies, academic institutions, and consultants, Ecology and Conservation of Fishes provides broad, comprehensive, and systematic coverage of all aquatic systems from the mountains to the oceans. The book begins with overview discussions on the ecology, evolution, and diversity of fishes. It moves on to address freshwater, estuarine, and marine ecosystems and identifies factors that affect the distribution and abundance of fishes. It then examines the adaptations of fishes as a response to constraints posed in ecosystems. The book concludes with four chapters on applied ecology to discuss the critical issues of management, conservation, biodiversity crises, and climate change. Major marine fisheries have collapsed, and there are worldwide declines in freshwater fish populations. Fishery scientists and managers must become more effective at understanding and dealing with resource issues. If not, fish species, communities, and entire ecosystems will continue to decline as habitats change and species are lost. Ecology and Conservation of Fishes has taken a historical and functional approach to explain how we got where we are, providing old and new with a better foundation as ecologists and conservationists, and most importantly, it awakens senses of purpose and need. Past management practices are reviewed, present programs considered, and the need for incorporating principles of applied ecology in future practices is emphasized.

The Fish Oocyte - From Basic Studies to Biotechnological Applications (Paperback, 2007 ed.): Patrick J. Babin, Joan Cerda,... The Fish Oocyte - From Basic Studies to Biotechnological Applications (Paperback, 2007 ed.)
Patrick J. Babin, Joan Cerda, Esther Lubzens
R4,564 Discovery Miles 45 640 Ships in 10 - 15 working days

This book addresses the growing needs in deciphering the biological processes associated with fish reproduction, in view of the growth of aquaculture and the dwindling natural stocks of commercially important fish. It presents a comprehensive overview on egg production in fish, from the standpoint of the oocyte. With this view in mind, the book includes chapters on oocyte development (oogenesis), hormonal regulation and hormone receptors, formation of the egg envelopes, growth, accumulation of nutrients and maternal transcripts, maturation, hydration, ovulation and fertilization. A special emphasis is placed on using state-of-the-art tools including electron microscopy for discerning the ultra-structure of the follicle and genomic/ proteomic tools to fully understand biological basis of fish reproduction. Studies on promoting oocyte maturation, ovulation and spawning in farmed fish and preservation of fish oocytes at low temperatures are also included.

Biology of European Sea Bass (Paperback): F. Javier Sanchez Vazquez, Jose A. Munoz-Cueto Biology of European Sea Bass (Paperback)
F. Javier Sanchez Vazquez, Jose A. Munoz-Cueto
R1,947 Discovery Miles 19 470 Ships in 12 - 17 working days

Biology of European Seabass presents up-to-date reviews on key topics of seabass biology, written by leading scientific experts with extensive knowledge of seabass as well as their respective field of expertise. The book covers the biology and ecology of the different sea basses and the latest findings in molecular biology, physiology, and behavior of this species. Ranging from larval development to nutrition to pathology and immune system, the chapters cover a broad spectrum. The final chapter deals with novel tools such as transcriptomics, proteomics, and metabolomics. The social and commercial impact (fisheries and aquaculture) of seabass is also assessed.

Tilapia - Biology, Culture, and Nutrition (Hardcover, New): William Shelton Tilapia - Biology, Culture, and Nutrition (Hardcover, New)
William Shelton; Edited by Carl D Webster, Chhorn. Lim; Contributions by Craig Shoemaker, Phillip Klesius, …
R5,591 Discovery Miles 55 910 Ships in 12 - 17 working days

Learn to maximize tilapia production in different areas around the world Tilapia is the second-most cultured fish species in the world, and its production is increasing each year. However, for several reasons profit margins remain slim. Tilapia: Biology, Culture, and Nutrition presents respected international experts detailing every aspect of tilapia production around the world. Biology, breeding and larval rearing, farming techniques, feeding issues, post-harvest technology, and industry economics are clearly presented. This concise yet extensive reference provides the latest research and practical information to efficiently and economically maximize production in diverse locales, conditions, and climates. Tilapia: Biology, Culture, and Nutrition comprehensively explores all types of tilapia with a detailed biologic description of the fish that takes readers from egg through harvesting. The book authoritatively discusses production issues such as feed nutrition, temperature, water quality, parasites, and disease control to guide readers on how to best encourage fast, efficient growth. Economic and marketing information are examined, including industry data and projections by country. Each chapter approaches a specific facet of tilapia and provides the most up-to-date research available in that area. This resource gives the most current, detailed information needed for effective tilapia farming in one compact economical volume. Extensively referenced with an abundance of clear, helpful tables, photographs, and figures. Tilapia: Biology, Culture, and Nutrition discusses in detail: complete biology, including sex ratios, optimum temperatures for growth and spawning, water quality parameters, and disease tolerance industry predictions hormonal control of growth genetic improvement sex determination, manipulation, and control seed production culture practices earthen and lined pond production culture in flowing water cage culture feed formulation and processing, and feeding management soil, water, and effluent quality saline tolerance levels with optimum rate of acclimation to seawater polyculture of tilapia with shrimp bottom soil conditions nutrient requirements with non-nutrient components parasites and diseases Tilapia: Biology, Culture, and Nutrition is essential reading for aquaculturists, nutritionists, geneticists, hatchery managers, feed formulators, feed mill operators, extension specialists, tilapia growers, fish farmers/producers, educators, disease specialists, aquaculture veterinarians, policy makers, educators, and students.

Coral Reef Fishes - Caribbean, Indian Ocean and Pacific Ocean Including the Red Sea - Revised Edition (Paperback, Revised... Coral Reef Fishes - Caribbean, Indian Ocean and Pacific Ocean Including the Red Sea - Revised Edition (Paperback, Revised edition)
Ewald Lieske, Robert Myers
R662 Discovery Miles 6 620 Ships in 12 - 17 working days

Expanded and updated to include an additional 44 species, this is a handy guide to those fishes that are likely to be observed by anybody visiting or diving on the coral reefs of the Caribbean, the Indian Ocean, and the Pacific to a depth of sixty meters. Accessible to amateur marine life enthusiasts, this book is the first comprehensive guide of its kind. It enables the reader to quickly identify 2,118 species of fish and includes over 2,500 color illustrations depicting the major forms of each species--male, female, immature, or geographical varieties. The text proceeds according to region, depicting each species and its varieties, and offering information on its geographic range and where on the coral reef itself the fish may be found. Important identification characteristics are highlighted on every color plate.

Evolutionary Ecology - The Trinidadian Guppy (Paperback): Anne E Magurran Evolutionary Ecology - The Trinidadian Guppy (Paperback)
Anne E Magurran
R1,861 Discovery Miles 18 610 Ships in 12 - 17 working days

This book celebrates the guppy's unique contribution to evolutionary ecology. Ever since Caryl Haskins described guppy populations as a 'natural experiment' because of the way predation pressure varies over a small geographical area, generations of researchers have been drawn to Trinidad to investigate evolution in the wild. The species continues to provide classic examples of natural selection in action and elegantly illustrates how ecology, evolution, and behaviour are interlinked.
Anne Magurran's account of the evolutionary ecology of the guppy integrates historical breakthroughs with new research in this fast-moving field. She reveals how guppies provided some of the first evidence of sperm competition and sexual selection, and how they continue to inform scientific thought on mating systems and cryptic choice. The consequences of variation in predation risk--as well as a host of other biotic and abiotic factors--are described and evaluated at all life stages from conception to death. The book discusses behavioural responses to ecological conditions alongside life history patterns. It examines the potential for ecological speciation and discusses new research into how reproductive isolating mechanisms become established in promiscuous mating systems. Conservation issues are also considered, both in terms of protecting the irreplaceable Trinidadian guppy system and in the context of invasion ecology.
This timely synthesis of research into a species that has raised key questions in evolutionary ecology will be of great interest to graduate level students as well as professional researchers in the fields of behavioural ecology and evolutionary biology.

Fish Histology - From Cells to Organs (Hardcover): Doaa M. Mokhtar Fish Histology - From Cells to Organs (Hardcover)
Doaa M. Mokhtar
R4,083 Discovery Miles 40 830 Ships in 12 - 17 working days

This new volume provides up-to-date information that emphasizes the relationships and concepts by which cell and tissue structures of fish are inextricably linked with their function. The book also describes the most recent development in the sciences of fish histology. Covers the normal histology of six fish species, the book provides detailed information on the histology of all organs of teleosts and includes 130 original photomicrographs, tables, updated terminology, and expanded information, with over 100 in color. This new volume, Fish Histology: From Cells to Organs, provides up-to-date information that emphasizes the relationships and concepts by which cell and tissue structures of fish are inextricably linked with their function. The book also describes the most recent development in the sciences of fish histology. Histology is the discipline of biology that involves the microscopic examination of tissue sections in order to study their structure and correlate it with function. Histology can detect signs of disease not easily recognized on gross examination and can therefore be of interest in fish health supervision. With fish constituting nearly 60% of all vertebrate species and of major worldwide economic importance as a food source, the information presented here will be valuable. The volume begins with concise introduction into the histological techniques for fish sampling, followed by an accurate up-to-date description of fish tissues. A chapter is devoted to each organ and organ systems in fish body as well. In addition, the book includes particular diagrams to illustrate the structure of organs and to enhance the usefulness of the text. This volume is designed for use by veterinary medical scientists, researchers, biologists, ichthyologists, fish farmers, veterinarians working in fisheries and, of course, by comparative histologists who want to learn more about the fish world. As a further aid to learning and identification, numerous photomicrographs and electron micrographs accompany the text, with particular emphasis on diagrams and tables to summarize morphologic and functional features of cells, tissues, and organs.

Developmental Biology of Teleost Fishes (Paperback, 2004 ed.): Yvette Kunz-Ramsay Developmental Biology of Teleost Fishes (Paperback, 2004 ed.)
Yvette Kunz-Ramsay
R6,016 Discovery Miles 60 160 Ships in 10 - 15 working days

In the compiling of this book, the vast literature dealing with the descriptive morphology, histology and cytology of teleost development has been combed and integrated. The book is divided into 21 chapters, starting with the egg and embryonic development up to hatching. This is followed by a description of ectodermal, mesodermal and entodermal derivatives and the development of various organs. The subject index, species index and the abundant illustrations add extra value to this long awaited book.

Developmental Biology of Teleost Fishes will be a valuable tool for scientists and students in the fields of biology, developmental biology, molecular biology and fish biology.

Electronic Tagging and Tracking in Marine Fisheries - Proceedings of the Symposium on Tagging and Tracking Marine Fish with... Electronic Tagging and Tracking in Marine Fisheries - Proceedings of the Symposium on Tagging and Tracking Marine Fish with Electronic Devices, February 7-11, 2000, East-West Center, University of Hawaii (Hardcover, 2001 ed.)
John R. Sibert, Jennifer L. Nielsen
R1,651 Discovery Miles 16 510 Ships in 10 - 15 working days

Reviews: Methods and Technology in Fish Biology and Fisheries published by Kluwer Academic Publishers is a book series dedicated to the publication of information on advanced, forward-looking methodologies, technologies, or perspectives in fish and is especially dedicated to relevant topics addressing global, fisheries. This series international concern in fish and fisheries. Humans continue to challenge our environments with new technologies and technological applications. The dynamic creativity of our own species often tends to place the greatest burden on our supporting ecosystems. This is especially true for aquatic networks of creeks, lakes, rivers and ocean environments. We also frequently use our conceptual powers to balance conflicting requirements and demands on nature and continue to develop new approaches and tools to provide sustainable resources as well as conserve what we hold most dear on local and global scales. This book series will provide a window into the developing dynamic among humans, aquatic ecosystems (both freshwater and marine), and the organisms that inhabit aquatic environments. There are many reasons to doubt the increasing social and economic value technology has gained over the last two centuries. Science and technology represent stages in human development. I agree with Ernst Mayer when he said in Toward a New Philosophy of Biology (1988) that "endeavors to solve all scientific problems by pure logic and refined measurements are unproductive, if not totally irrelevant.

Tilapias: Biology and Exploitation (Paperback, Softcover reprint of the original 1st ed. 2000): M. C. M. Beveridge, B. McAndrew Tilapias: Biology and Exploitation (Paperback, Softcover reprint of the original 1st ed. 2000)
M. C. M. Beveridge, B. McAndrew
R5,939 Discovery Miles 59 390 Ships in 10 - 15 working days

Referred to in the Bible, pictured on the wall-friezes of ancient Egyptian tombs, and a subject of fascination for generations of scientists, the tilapias (Cichlidae: Tilapiini) have featured in the diet and culture of humankind for thousands of years. The present century has seen their spread from Africa throughout the tropics and sub-tropics, largely for food and fisheries purposes. This book attempts to pull together our knowledge of this important group - their biology and fisheries and aquaculture - in a single volume, something that has not been done comprehensively for nearly two decades. A succession of chapters by acknowledged authorities covers evolution, phylogenetic relationships and biogeography, reproductive biology, mating systems and parental care, diet, feeding and digestive physiology, environmental physiology and energetics, the role of tilapias in ecosystems, population dynamics and management, genetics, seed production, nutrition, farming, economics and marketing. The book is aimed at biologists, fisheries scientists, aquaculturists, and all interested in aquatic ecology.

Ecology of Teleost Fishes (Paperback, 2nd ed. 1999): Robert J. Wootton Ecology of Teleost Fishes (Paperback, 2nd ed. 1999)
Robert J. Wootton
R4,912 Discovery Miles 49 120 Ships in 10 - 15 working days

Teleost fishes account for nearly half of all known vertebrate species. They have representatives in virtually all aquatic systems and an enormous variety in the ways they live. Moreover, teleost fishes support subsistence and commercial fisheries and aquaculture systems throughout the world. The second edition of this highly respected book retains the aims and structure of the first edition, emphasizing the responses of individual fish to their environment and the consequences of these responses for the population and community to which the individuals belong. Fully updated and rewritten, this new edition of Ecology of Teleost Fishes offers a thorough and integrated approach to the area and is essential reading for all students of fish biology and ecology, fisheries science and aquaculture. Fish biologists, fisheries scientists, ecologists and researchers in fish population studies, genetics and aquaculture will also find this book to be an invaluable reference source.

Shore Fishes of Hawai'i (Paperback, Revised edition): Shore Fishes of Hawai'i (Paperback, Revised edition)
R632 R547 Discovery Miles 5 470 Save R85 (13%) Ships in 10 - 15 working days

First published in 1996, this new edition of ""Shore Fishes of Hawai'i"" updates our knowledge of Hawaiian fishes and has been expanded to include 372 species. All are illustrated by the author's 475 superb color photographs. The most important characteristics to identify a fish are given as well as the size attained and its distribution. Each species account begins with the American common name, followed by the Hawaiian name (when known), and the scientific name. Because it is necessary to use some scientific terminology when giving the principal diagnostic characteristics of families or species of fishes and what they eat, a handy glossary appears at the back of the book.

The Exploitation of Evolving Resources - Proceedings of an International Conference, held at Julich, Germany, September 3-5,... The Exploitation of Evolving Resources - Proceedings of an International Conference, held at Julich, Germany, September 3-5, 1991 (Paperback)
T.Kevin Stokes, Jacqueline M. McGlade, Richard Law
R1,545 Discovery Miles 15 450 Ships in 10 - 15 working days

The impact of man on the biosphere is profound. Quite apart from our capacity to destroy natural ecosystems and to drive species to extinction, we mould the evolution of the survivors by the selection pressures we apply to them. This has implications for the continued health of our natural biological resources and for the way in which we seek to optimise yield from those resources. Of these biological resources, fish stocks are particularly important to mankind as a source of protein. On a global basis, fish stocks provide the major source of protein for human consumption from natural ecosystems, amounting to some seventy million tonnes in 1970. Although fisheries management has been extensively developed over the last century, it has not hitherto considered the evolutionary consequences of fishing activity. While this omission may not have been serious in the past, the ever increasing intensity of exploitation and the deteriorating health of fish stocks has generated an urgent need for a better understanding of evolution driven by harvesting and the implications of this for fish stock management. The foundations for this understanding for the most part come from recent developments in evolutionary biology and are not generally available to fisheries scientists. The purpose of this book is to provide this basis in a form that is both accessible and relevant to fisheries biology.

Behaviour of Teleost Fishes (Paperback, 2nd ed. 1993): T.J. Pitcher Behaviour of Teleost Fishes (Paperback, 2nd ed. 1993)
T.J. Pitcher
R6,064 Discovery Miles 60 640 Ships in 10 - 15 working days

This book is about the behaviour of teleosts, a well-defined, highly successful taxonomic group of vertebrate animals sharing a common body plan and forming the vast majority of living bony fishes. There are over 22000 living species of teleosts, including nearly all the fish of importance in commercial fisheries and aquaculture. Teleosts are represented in just about every conceivable aquatic environment from temporary desert pools to the deep ocean, from soda lakes to sub-zero Antarctic waters. Behaviour forms the primary interface between these effective survival machines and their environ ment; behavioural plasticity is the key to the success of the teleost fishes. In the decade before the publication of the first edition of this book (1986) the study of animal behaviour underwent revolutionary changes under the dual impact of the new fields of behavioural ecology and sociobiology. Quantitative, experimentally-verifiable hypotheses about why individual animals behave were formulated for the first time and met with considerable success. Much of the early work in these new fields concentrated on birds and mammals, but material presented in the first edition of this book helped to demonstrate that fish behaviour is not just a simplified version of that seen in birds and mammals. but obeys the same ecological and evolutionary rules. In the five years since the first edition. much of the early theory has matured: optimal solutions to the problems of feeding and mating require subtle trade-offs of energy balance."

Fish Ecology (Paperback, Softcover reprint of the original 1st ed. 1991): Robert J. Wootton Fish Ecology (Paperback, Softcover reprint of the original 1st ed. 1991)
Robert J. Wootton
R1,593 Discovery Miles 15 930 Ships in 10 - 15 working days

Fishes live in a world that is unfamiliar to us. Although we may make or even more advanced brief visits to this other world using a snorkel, scuba diving equipment, we can never become a part of it. Yet, an understanding of fish ecology requires an awareness of the relationships between fishes and their environment. The purpose of this book is to introduce the ecology of fishes by describing the inter-relationships between fishes and the aquatic habitats they occupy. The book can be read in complementary ways. A sequential reading, chapter by chapter, covers the main themes of ecology, including habitat use, species interactions, migration, feeding, population dynamics and reproduction in relation to the major habitats occupied by fishes. An alternative reading selects a particular sort of habitat, such as rivers, and, by using the index and skipping from chapter to chapter, builds up a picture of the ecology of fishes living in that habitat. The text is written for advanced students. Its emphasis is on descriptive rather than quantitative ecology. It is assumed that the reader will be familiar with the basic biology of fishes, acquired from a text such as The Biology of Fishes (Bone and Marshall, 1982) also published in the Tertiary Level Biology series. I would like to thank Dr J. D. Fish and two anonymous reviewers who, within a tight time-schedule, tried to improve the text. Any mistakes and shortcomings are my contribution.

The biology of Latimeria chalumnae and evolution of coelacanths (Paperback, Reprinted from `ENVIRONMENTAL BIOLOGY OF... The biology of Latimeria chalumnae and evolution of coelacanths (Paperback, Reprinted from `ENVIRONMENTAL BIOLOGY OF FISHES', 32: 1-4, 1991, 1991)
J.A. Musick, Michael N. Bruton, E. K. Balon
R1,669 Discovery Miles 16 690 Ships in 10 - 15 working days
The Future of Bluefin Tunas - Ecology, Fisheries Management, and Conservation (Hardcover): Barbara A. Block The Future of Bluefin Tunas - Ecology, Fisheries Management, and Conservation (Hardcover)
Barbara A. Block
R2,804 Discovery Miles 28 040 Ships in 12 - 17 working days

The most thorough and current account of scientific research on bluefin tunas-the largest, most sought-after tunas in the world Bluefin tunas are dominant keystone predators known for their impressive size, strength, endurance, and speed. Electronic tags have revealed that they can dive to great depths (over 6000 feet) and migrate vast distances-from frigid subpolar seas to warm tropical waters-for spawning. Prized for their rich taste and unique texture, bluefin tunas are also a worldwide commodity of great value. However, over the past few decades, overfishing throughout their range has led to significant population reductions. In The Future of Bluefin Tunas, Barbara A. Block brings together renowned bluefin experts from 15 different countries to share the latest information on the science, fisheries policy, and management decisions related to each of the three species within the Thunnus group-Atlantic, Pacific, and Southern. Synthesizing basic and applied research, the book delves into every aspect of these majestic fish, from their life history and genetic makeup to their ecology and migrations. Ichthyologists and marine scientists dedicated to the study of these fishes report on the latest stock assessments, explore the results of advances such as biologging and DNA sampling, and assess the potential of bluefin tuna aquaculture. The Future of Bluefin Tunas provides critical research findings to inform decisions that will impact tunas and the ocean ecosystems they affect. Scientists, fisheries managers, policymakers, and marine conservationists will take away key data from this timely volume to help them ensure these remarkable fish continue in perpetuity.

Type Specimens of Fossil Fishes - Catalogue of the University of Alberta Laboratory for Vertebrate Paleontology (Hardcover):... Type Specimens of Fossil Fishes - Catalogue of the University of Alberta Laboratory for Vertebrate Paleontology (Hardcover)
John Clay Bruner
R1,834 Discovery Miles 18 340 Ships in 12 - 17 working days

The Laboratory for Vertebrate Paleontology at the University of Allberta houses type specimens of fossil fishes. This book is a catalogue of these specimens. Included for each entry is taxonomy, detailed collection locality information, the citation wherein the species was originally described, and a list of individual type specimens. This is the first list ever compiled of the fossil fish types deposited in the collections of the University of Alberta Laboratory for Vertebrate Paleontology (UALVP). This collection contains 88 fish holotypes, 966 fish paratypes, 55 casts of fish holotypes from other museums, and 20 casts of fish paratypes from other museums. Key selling features: List all of the type specimens of fossil fishes currently housed in the collection of the Laboratory of Vertebrate Paleontology at the University of Alberta in Edmonton, Canada. Provides details of all 88 holotypes and nearly 1000 paratypes as well as casts of types specimens held in other museum collections. Includes information on unpublished "types" - type specimens of not yet described new species.

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