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

Freshwater Fish Culture in China: Principles and Practice, Volume 28 (Hardcover): S. Li, J Mathias Freshwater Fish Culture in China: Principles and Practice, Volume 28 (Hardcover)
S. Li, J Mathias
R8,137 Discovery Miles 81 370 Ships in 10 - 15 working days

This book introduces the theory and practice of Chinese freshwater fish culture to the world. Fish resources, reproduction, feeding and nutrition, genetics and breeding, fry and fingerling nursing, integrated fish farming, fish culture in lakes, reservoirs, pens and cages, luxury species culture, as well as disease control are described. A representative collection of the Chinese literature is cited, most of it exposed to the world for the first time. This volume will be invaluable to all aquaculturists and animal/fisheries scientists.

Metabolic Biochemistry, Volume 4 (Hardcover): T.P. Mommsen, Peter W. Hochachka Metabolic Biochemistry, Volume 4 (Hardcover)
T.P. Mommsen, Peter W. Hochachka
R8,871 Discovery Miles 88 710 Ships in 10 - 15 working days

This fourth volume in the series covers such topics as endogenous fuels, electric organs, histidine-related dipeptides, and origins of luciferins. The book will be invaluable to fisheries scientists, aquaculturists, and animal biochemists, physiologists and endocrinologists; it will provide researchers and students with a pertinent information source from theoretical and experimental angles.

Sharks: An Eponym Dictionary (Hardcover): Michael Watkins, Bo Beolens Sharks: An Eponym Dictionary (Hardcover)
Michael Watkins, Bo Beolens
R1,169 Discovery Miles 11 690 Ships in 10 - 15 working days

This fascinating reference book delves into the origins of the vernacular and scientific names of sharks, rays, skates and chimeras. Each entry offers a concise biography, revealing the hidden stories and facts behind each species' name. Full of interesting facts and humorous titbits, the authors' extensive research and detective work has made this book a comprehensive source of knowledge on everyone associated with the naming of a species. A fascinating resource for anyone with an interest in sharks, from curious naturalist to professional ichthyologist, it is an essential addition to the library of anyone wishing to satisfy those tickling questions on the mysteries behind the names. Sometimes a name refers not to a person but to a fictional character or mythological figure. Eptatretus eos is named after the Greek goddess of the dawn in reference to the pink colouring of the hagfish. The Chilean Roundray Urotrygon cimar, named after Centro de Investigacion en Ciencias del Mar y Limnologia in honour of its 20th anniversary, and the Angular Angelshark Squatina Guggenheim, named after the John Simon Guggenheim Memorial Foundation, are both named after institutions. The Whiteleg Skate Amblyraja taaf is just a shorthand way of describing a toponym - Territoire des Terres australes et antarctiques francaises. There are also entries which are light-hearted such as the one for a lady who told us "that decoration of her cakes have included roughtail skate Bathyraja trachura, red abalone Haliotis rufescens, and chinook salmon Oncorhynchus tshawytscha." Following the success of their previous Eponym Dictionaries, the authors have joined forces to give the Elasmobranch group of fishes a similar treatment but they have also included the describers and authors of the original descriptions of the fishes involved, in addition to those names that are, or appear to be, eponyms. They have tracked down some 850 names of living as well as dead people. Of these half are eponyms after people who have fish named after them and may also have described a fish or fishes. The other half are ichthyologists, marine biologists and other scientists who have become involved in the description and naming of sharks, rays, skates and chimeras. For each person mentioned there is brief, pithy biography. Additionally there are some 50 entries for what sound like eponyms but turned out not to have any connection to a person, such as the Alexandrine Torpedo is named after the city in Egypt and not Alexander the Great. In some cases these are a reminder of the courage of scientists whose dedicated research in remote locations exposed them to disease and even violent death. The eponym ensures that their memory will survive, aided by reference works such as this highly readable dictionary. Altogether 1,577 fishes are listed.

The rights and wrongs of zebrafish: Behavioral phenotyping of zebrafish (Hardcover, 1st ed. 2017): Allan V. Kalueff The rights and wrongs of zebrafish: Behavioral phenotyping of zebrafish (Hardcover, 1st ed. 2017)
Allan V. Kalueff
R5,053 Discovery Miles 50 530 Ships in 10 - 15 working days

Animal models and tests have become increasingly important for biomedical research, enabling a better understanding of pathogenic pathways involved in various human disorders. Over the last decades, zebrafish (Danio rerio) have become a very popular model organism in biomedical research. Recently, this fish has entered the waters of neuroscience and biological psychiatry, quickly becoming an indispensable model species in this field. With a high genetic homology to humans (~75% based on coding regions), it is not surprising that humans and fish are very similar physiologically (and behaviorally). Therefore, it should not come as a surprise that zebrafish can be an excellent model of human neuropsychiatric disorders. While some classical psychiatrists may not too easily be persuaded by this generalization, the current book "The rights and wrongs of zebrafish: principles of behavioral phenotyping and CNS disease modeling" explains, in a domain-by-domain manner, how exactly zebrafish models can be used to target a wide range of human brain disorders and aberrant phenotypes. The contributors to this book are leading international scholars whose work spearheads innovative zebrafish neuroscience research around the world. Written by top experts in the field, this book makes for a useful, balanced and up-to-date reading that outlines the use of zebrafish to study the pathological mechanisms underlying neuropsychiatric disorders.

Around the Ocean in 80 Fish and other Sea Life (Hardcover): Helen Scales Around the Ocean in 80 Fish and other Sea Life (Hardcover)
Helen Scales; Illustrated by Marcel George
R577 Discovery Miles 5 770 Ships in 10 - 15 working days

This is an inspiring tour of the world's oceans and 80 of its most notable inhabitants. Beautifully illustrated, the book includes fascinating stories of the fish, shellfish and other sea life that have somehow impacted human life - whether in our medicine, culture or folklore - in often surprising and unexpected ways.

Breeding and Hybridization of Food Fishes (Hardcover): K.P. Biswas Breeding and Hybridization of Food Fishes (Hardcover)
K.P. Biswas
R1,504 Discovery Miles 15 040 Ships in 18 - 22 working days
Fish Pharmacology and Toxicology - Research Reviews (Hardcover): Govind Pandey Fish Pharmacology and Toxicology - Research Reviews (Hardcover)
Govind Pandey
R1,492 Discovery Miles 14 920 Ships in 18 - 22 working days
Fishes of the Gulf of Maine - Fishery Bulletin 74 (Hardcover): Henry B. Bigelow, William C. Schroeder Fishes of the Gulf of Maine - Fishery Bulletin 74 (Hardcover)
Henry B. Bigelow, William C. Schroeder
R1,863 Discovery Miles 18 630 Ships in 10 - 15 working days

This is a reprint of the first revision of this classic. Originally published in 1953 as Fishery Bulletin #74 for the US Department of the Interior, Fish and Wildlife Service. The "Gulf of Maine" is defined as an area from the Nantucket Shoals and Cape Cod in the west to Cape Sable in the east. The aim of the book was to provide a handbook for the easy identification of the fishes that occur in the Gulf of Maine, with summaries of what is known about the distribution and relative abundance together with information on the life history of each species. The authors used the 150-fathom boundary as the arbitrary offshore boundary as this will exclude almost all "deep-sea" fishes, which are numerous in the basin of the open Atlantic. Combining information gleaned from the literature as well as surveys from a large number of cruises, the volume covers the Cyclostomes, cartilaginous fishes, torpedoes, skates and rays and the bony fishes. The descriptions are as non-technical as is compatible with scientific accuracy and are limited to external features that will aid in identification in the field.

Fish Physiology: Homeostasis and Toxicology of Non-Essential Metals, Volume 31B (Hardcover): Chris M. Wood, Anthony P. Farrell,... Fish Physiology: Homeostasis and Toxicology of Non-Essential Metals, Volume 31B (Hardcover)
Chris M. Wood, Anthony P. Farrell, Colin J. Brauner
R2,380 Discovery Miles 23 800 Ships in 10 - 15 working days

"Homeostasis and Toxicology of Non-Essential Metals" synthesizes the explosion of new information on the molecular, cellular, and organismal handling of metals in fish in the past 15 years. These elements are no longer viewed by fish physiologists as "heavy metals" that kill fish by suffocation, but rather as interesting moieties that enter and leave fish by specific pathways, which are subject to physiological regulation. The metals featured in this volume are those about which there has been most public and scientific concern, and therefore are those most widely studied by fish researchers. Metals such as Ag, Al, Cd, Pb, Hg, As, Sr, and U have no known nutritive function in fish at present, but are toxic at fairly low levels.

The companion volume, "Homeostasis and Toxicology of Essential Metals, " Volume 31A, covers metals that are either proven to be or are strongly suspected to be essential in trace amounts, yet are toxic in higher doses. Metals such as Cu, Zn, Fe, Ni, Co, Se, Mo and Cr. In addition, three chapters in Volumes 31A and 31B on Basic Principles (Chapter 1, 31A), Field Studies and Ecological Integration (Chapter 9, 31A) and Modeling the Physiology and Toxicology of Metals (Chapter 9, 31B) act as integrative summaries and make these two volumes a vital set for readers.
All major essential metals of interest are covered in metal-specific chaptersEach metal-specific chapter is written by fish physiologists/toxicologists who are recognized authorities for that metalA common format is featured throughout this two volume edition

Fish Physiology: Homeostasis and Toxicology of Essential Metals, Volume 31A (Hardcover): Chris M. Wood, Anthony P. Farrell,... Fish Physiology: Homeostasis and Toxicology of Essential Metals, Volume 31A (Hardcover)
Chris M. Wood, Anthony P. Farrell, Colin J. Brauner
R2,111 Discovery Miles 21 110 Ships in 10 - 15 working days

"Homeostasis and Toxicology of Essential Metals" synthesizes the explosion of new information on the molecular, cellular, and organismal handling of metals in fish in the past 15 years. These elements are no longer viewed by fish physiologists as "heavy metals" that kill fish by suffocation, but rather as interesting moieties that enter and leave fish by specific pathways, which are subject to physiological regulation. The metals featured in this volume are those about which there has been most public and scientific concern, and therefore are those most widely studied by fish researchers. Metals such as Cu, Zn, Fe, Ni, Co, Se, Mo and Cr are either proven to be or are strongly suspected to be essential in trace amounts, yet are toxic in higher doses.

The companion volume, "Homeostasis and Toxicology of Non-Essential Metals, " Volume 31B, covers metals that have no known nutritive function in fish at present, but which are toxic at fairly low levels, such as Ag, Al, Cd, Pb, Hg, As, Sr, and U. In addition, three chapters in Volumes 31A and 31B on Basic Principles (Chapter 1, 31A), Field Studies and Ecological Integration (Chapter 9, 31A) and Modeling the Physiology and Toxicology of Metals (Chapter 9, 31B) act as integrative summaries and make these two volumes a vital set for readers.
All major essential metals of interest are covered in metal-specific chaptersEach metal-specific chapter is written by fish physiologists/toxicologists who are recognized authorities for that metalA common format is featured throughout this two volume edition

Ophidians, Zoological Arrangement of the Different Genera, Including Varieties Known in North and South America, the East... Ophidians, Zoological Arrangement of the Different Genera, Including Varieties Known in North and South America, the East Indies, South Africa, and Australia. Their Poisons, and All That is Known of Their Nature. Their Galls, as Antidotes to The... (Hardcover)
S B Higgins
R822 Discovery Miles 8 220 Ships in 18 - 22 working days
Fish Protection Technologies and Fish Ways for Downstream Migration (Hardcover, 1st ed. 2020): Ulrich Schwevers, Beate Adam Fish Protection Technologies and Fish Ways for Downstream Migration (Hardcover, 1st ed. 2020)
Ulrich Schwevers, Beate Adam
R3,134 Discovery Miles 31 340 Ships in 18 - 22 working days

This book offers a comprehensive review of current systems for fish protection and downstream migration. It offers the first systematic description of the currently available technologies for fish protection at hydropower intakes, including accurate and timely data collected by the authors and other researchers. It describes how to design and test them in agreement with the guidelines established from the EU Water Framework Directive. The book includes important information about fish biology, with a special focus on swimming and migration mechanisms. It offers a robust bridge between concepts in applied ecology and civil hydraulic engineering, thus providing biologists and hydraulic engineers with an authoritative reference guide to both the theory and practice of fish protection. It is also of interest for planners, public authorities as well as environmental consultants

On the Batrachia and Reptilia of Costa Rica - With Notes on the Herpetology and Ichthyology of Nicaragua and Peru (Hardcover):... On the Batrachia and Reptilia of Costa Rica - With Notes on the Herpetology and Ichthyology of Nicaragua and Peru (Hardcover)
E D (Edward Drinker) 1840-1897 Cope
R761 Discovery Miles 7 610 Ships in 18 - 22 working days
Medaka - A Model for Organogenesis, Human Disease, and Evolution (Hardcover, 2011 ed.): Kiyoshi Naruse, Minoru Tanaka, Hiroyuki... Medaka - A Model for Organogenesis, Human Disease, and Evolution (Hardcover, 2011 ed.)
Kiyoshi Naruse, Minoru Tanaka, Hiroyuki Takeda
R5,202 Discovery Miles 52 020 Ships in 18 - 22 working days

"Oryzias latipes," known as medaka, is a model organism from East Asia. Breeding of this small, egg-laying freshwater teleost fish has long been popular among hobbyists in Japan. Now, as biological science has entered the genome era, the medaka provides significant advantages that make it one of the most valuable vertebrate models: a large collection of spontaneous mutants collected over a century, the presence of highly polymorphic inbred lines established over decades, and a recently completed genome sequence. This book is the first comprehensive monograph to cover a variety of medaka research. It opens with a historical view of medaka, followed by a series of research topics in the four major areas where the medaka is increasingly important: genomics, genetics, and resources; organogenesis and disease models; germ cells, sex determination, and reproduction; and evolution. Readers will find state-of-the-art information on medaka genetics and genomics such as the first isolation of active transposons in vertebrates, the influence of chromatin structure on sequence variation, fine QTL analysis, and versatile mutants as human disease models.

Fish Physiology: Zebrafish, Volume 29 (Hardcover): Steve F. Perry, Marc Ekker, Anthony P. Farrell, Colin J. Brauner Fish Physiology: Zebrafish, Volume 29 (Hardcover)
Steve F. Perry, Marc Ekker, Anthony P. Farrell, Colin J. Brauner
R2,682 R2,509 Discovery Miles 25 090 Save R173 (6%) Ships in 10 - 15 working days

This cutting-edge resource includes up-to-date information on zebrafish physiology and the tools used to study it, not only as a model species for studies of other vertebrates but with application for studies of human disease and aquatic toxicology. The utility of zebrafish for physiological research is based on several key features including i) a "fully" sequenced genome, ii) rapid ( 3 month) generation times), iii) their capacity to produce large numbers of externally fertilized eggs, iv) optical transparency of embryos and larvae, and v) the applicability of reverse and forward genetics to assess gene function. Gene knockdown in embryos and the production of transgenic strains are now standard techniques being used to assess physiology. This book will be of keen interest not only to the typical readers of Fish Physiology but also to biomedical researchers, toxicologists and developmental biologists.

Key Features
* Integrates and synthesizes the biology of the zebrafish under one cover
* Features contributions from the leading researchers in their fields
* Reaches a wider audience of researchers and biologists with its broad inclusion of subjects relating to zebrafish physiology

Fish Physiology: Fish Neuroendocrinology, Volume 28 (Hardcover, 28th edition): Nicholas J. Bernier, Glen Van Der Kraak, Anthony... Fish Physiology: Fish Neuroendocrinology, Volume 28 (Hardcover, 28th edition)
Nicholas J. Bernier, Glen Van Der Kraak, Anthony P. Farrell, Colin J. Brauner
R2,305 Discovery Miles 23 050 Ships in 10 - 15 working days

The study of fish neuroendocrinology has had a significant impact on our general understanding of the functional roles and evolution of a variety of neurochemical messengers and systems. Not only do fish possess unique neuroendocrine features, they have also been and remain an important vertebrate models for the discovery of new neuropeptides. In the last fifty years, neuroendocrinologists have documented a complex and seemingly infinite number of interactions between hormones and nerve structures. Gradually emerging from this knowledge is an understanding of the specific neurohormonal pathways and the messengers responsible for maintaining homeostasis in an aquatic environment and for regulating the functional systems that allow for the highly diverse life histories and reproductive tactics of fish
Despite its recent growth, breadth and unique attributes, there is no single text covering the discipline of fish neuroendocrinology. In fact, other than a few mammalian neuroendocrinology textbooks, there is a serious lack of texts in comparative neuroendocrinology. Currently, information on the anatomical organization and function of the various neuroendocrine systems in fish is only available in original research papers and reviews.
By providing a current and comprehensive volume that highlights the specific properties of fish neuroendocrinology, this book will go beyond being the only reference text for fish neuroendocrinologists and will also serve comparative physiologists, endocrinologists, neuroanatomists and behaviourists interested in understanding the reciprocal actions between the nervous and endocrine systems.

* Highlights the specific properties of fish neuroendocrinology
* Emphasises the range and variety of interactions between neurobiology and endocrinology
* Discuses both anatomical and functional aspects of the Neuroendocrine system
* Also serves comparative physiologists, endocrinologists, neuroanatomists and behaviourists interested in understanding the reciprocal actions between the nervous and endocrine systems

Fish Physiology: Hypoxia, Volume 27 (Hardcover, 27th edition): Jeffrey G. Richards, Anthony P. Farrell, Colin J. Brauner Fish Physiology: Hypoxia, Volume 27 (Hardcover, 27th edition)
Jeffrey G. Richards, Anthony P. Farrell, Colin J. Brauner
R2,309 Discovery Miles 23 090 Ships in 10 - 15 working days

Periods of environmental hypoxia (Low Oxygen Availability) are extremely common in aquatic systems due to both natural causes such as diurnal oscillations in algal respiration, seasonal flooding, stratification, under ice cover in lakes, and isolation of densely vegetated water bodies, as well as more recent anthropogenic causes (e.g. eutrophication). In view of this, it is perhaps not surprising that among all vertebrates, fish boast the largest number of hypoxia tolerant species; hypoxia has clearly played an important role in shaping the evolution of many unique adaptive strategies. These unique adaptive strategies either allow fish to maintain function at low oxygen levels, thus extending hypoxia tolerance limits, or permit them to defend against the metabolic consequences of oxygen levels that fall below a threshold where metabolic functions cannot be maintained.
The aim of this volume is two-fold. First, this book will review and synthesize the adaptive behavioural, morphological, physiological, biochemical, and molecular strategies used by fish to survive hypoxia exposure and place them within an environmental and ecological context. Second, through the development of a synthesis chapter this book will serve as the cornerstone for directing future research into the effects of hypoxia exposures on fish physiology and biochemistry.


Key Features
* The only single volume available to provide an in-depth discussion of the adaptations and responses of fish to environmental hypoxia.
* Reviews and synthesizes the adaptive behavioural, morphological, physiological, biochemical, and molecular strategies used by fish to survive hypoxia exposure.
* Includes discussion of the evolutionary and ecological consequences of hypoxia exposure in fish.

Molecular Biology Frontiers, Volume 2 (Hardcover, and and): T.P. Mommsen, Peter W. Hochachka Molecular Biology Frontiers, Volume 2 (Hardcover, and and)
T.P. Mommsen, Peter W. Hochachka
R8,867 Discovery Miles 88 670 Ships in 10 - 15 working days

This second volume in the series covers such topics as DNA fingerprinting of fishes, the cytochromes P450 in fish, the molecular biology of bacterial fish diseases, and new insights into the origins of the diversity and distribution of fish antifreeze proteins. The book will be of great value to fisheries scientists, animal biochemists, physiologists and endocrinologists, and aquaculturists. It will provide researchers and students alike with a pertinent information source from theoretical and experimental angles.

A Checklist of North American Amphibians and Reptiles - The United States and Canada (Hardcover): M J Fouquette, Alain DuBois A Checklist of North American Amphibians and Reptiles - The United States and Canada (Hardcover)
M J Fouquette, Alain DuBois
R896 Discovery Miles 8 960 Ships in 10 - 15 working days
Return to the River - Restoring Salmon Back to the Columbia River (Hardcover): Richard N. Williams Return to the River - Restoring Salmon Back to the Columbia River (Hardcover)
Richard N. Williams
R2,011 Discovery Miles 20 110 Ships in 10 - 15 working days

Return to the River will describe a new ecosystem-based approach to the restoration of salmon and steelhead populations in the Columbia River, once one of the most productive river basins for anadromous salmonids on the west coast of North America. The approach of this work has broad applicability to all recovery efforts throughout the northern hemisphere and general applicability to fisheries and aquatic restoration efforts throughout the world.
The Pacific Northwest is now embroiled in a major public policy debate over the management and restoration of Pacific salmon. The outcome of the debate has the potential to affect major segments of the region's economy - river transportation, hydroelectric production, irrigated agriculture, urban growth, commercial and sport fisheries, etc. This debate, centered as it is on the salmon in all the rivers, has created a huge demand for information. The book will be a powerful addition to that debate.
* A 15 year collaboration by a diverse group of scientists working on the management and recovery of salmon, steelhead trout, and wildlife populations in the Pacific Northwest
* Includes over 200 figures, with four-color throughout the book
* Discusses complex issues such as habitat degradation, juvenile survival through the hydrosystem, the role of artificial production, and harvest reform

A History of British Fishes; v. 1 (1836) (Hardcover): William 1784-1856 Yarrell A History of British Fishes; v. 1 (1836) (Hardcover)
William 1784-1856 Yarrell; Created by G Brown (George Brown) 1851- Goode, Frederick D Former Owner Dsi Stuart
R1,013 Discovery Miles 10 130 Ships in 10 - 15 working days
Salmon - A Fish, the Earth, and the History of a Common Fate (Paperback): Mark Kurlansky Salmon - A Fish, the Earth, and the History of a Common Fate (Paperback)
Mark Kurlansky
R320 R292 Discovery Miles 2 920 Save R28 (9%) Ships in 9 - 17 working days

WINNER OF THE JOHN AVERY AWARD AT THE ANDRE SIMON AWARDS If we can save the salmon, we can save the world Over the centuries, salmon have been a vital resource, a dietary staple and an irresistible catch. But there is so much more to this extraordinary fish. As international bestseller Mark Kurlansky reveals, salmon persist as a barometer for the health of our planet. Centuries of our greatest assaults on nature can be seen in their harrowing yet awe-inspiring life cycle. Full of all Kurlansky's characteristic curiosity and insight, Salmon is a magisterial history of a wondrous creature. 'An epic, environmental tragedy' Spectator 'These creatures have nurtured our imagination as surely as our bodies. This book does them justice!' Bill McKibben

Coral Reef Fishes - Dynamics and Diversity in a Complex Ecosystem (Hardcover, 2nd ed): Peter F. Sale Coral Reef Fishes - Dynamics and Diversity in a Complex Ecosystem (Hardcover, 2nd ed)
Peter F. Sale
R2,998 Discovery Miles 29 980 Ships in 10 - 15 working days

Coral Reef Fishes is the successor of "The Ecology of Fishes on Coral Reefs." This new edition includes provocative reviews covering the major areas of reef fish ecology. Concerns about the future health of coral reefs, and recognition that reefs and their fishes are economically important components of the coastal oceans of many tropical nations, have led to enormous growth in research directed at reef fishes. Coral Reef Fishes is much more than a simple revision of the earlier volume; it is a companion that supports and extends the earlier work. The included syntheses provide readers with the current highlights in this exciting science.
Key Features
* An up-to-date review of key research areas in reef fish ecology, with a bibliography including hundreds of citations, most from the last decade
* Authoritative, up-to-date, provocative chapters written to suggest future research priorities
* An important companion and successor to "The Ecology of Fishes on Coral Reefs"
* Includes discussions of regulation of fish populations, dispersal or site fidelity of larval reef fishes, sensory and motor capabilities of reef fish larvae, and complexities of management of reef species and communities

Ecology, behaviour and conservation of the charrs, genus Salvelinus (Hardcover, 2002 ed.): Pierre Magnan, Celine Audet, Helene... Ecology, behaviour and conservation of the charrs, genus Salvelinus (Hardcover, 2002 ed.)
Pierre Magnan, Celine Audet, Helene Glemet, Michel Legault, Marco A. Rodriguez, …
R5,236 Discovery Miles 52 360 Ships in 18 - 22 working days

Salvelinus species are one of the most thoroughly studied groups of fishes. Many reasons explain this intense interest in charr biology. Charrs have a Holarctic distribution encompassing many Asian, North American, and European countries and occupy diverse marine and freshwater environments. Furthermore, the current distribution of charr includes areas that were directly influenced by climate and topographic change associated with the many Pleistocene glaciations. Undoubtedly, these conditions have promoted much of the tremendous morphological, ecological, and genetic variability and plasticity within Salvelinus species and they make charr very good models to study evolutionary processes 'in action'. Many charr species also exhibit demographic characteristics such as slow growth, late maturity, and life in extreme environments, that may increase their susceptibility to extinction from habitat changes and overexploitation, especially in depauperate aquatic habitats. This vulnerability makes understanding their biology of great relevance to biodiversity and conservation. Finally, charr are of great cultural, commercial, and recreational significance to many communities, and their intimate linkage with human societies has stimulated much interest in this enigmatic genus. This volume comprises a selection of papers presented at the fourth International Charr Symposium held in Trois-RiviA]res (QuA(c)bec, Canada), from 26 June to 1 July 2000. It includes 31 papers on ecological interactions and behaviour, trophic polymorphism, movement and migration, ecophysiology and evolutionary genetics, ecological parasitology, environmental stress and conservation. These studies cannot cover all recentdevelopments in the ecology, behaviour and conservation of Salvelinus species, but collecting them into a special volume should bring attention to current research on this important genus and stimulate further work on Salvelinus species.

Tilapias: Biology and Exploitation (Hardcover, and): M. C. M. Beveridge, B. McAndrew Tilapias: Biology and Exploitation (Hardcover, and)
M. C. M. Beveridge, B. McAndrew
R5,425 Discovery Miles 54 250 Ships in 18 - 22 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.

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