Recent decades have witnessed strong declines in fish stocks around the globe, amid growing concerns about the impact of fisheries on marine and freshwater biodiversity. Fisheries biologists and managers are therefore increasingly asking about aspects of ecology, behaviour, evolution and biodiversity that were traditionally studied by people working in very separate fields. This has highlighted the need to work more closely together, in order to help ensure future success both in management and conservation.

The "Handbook of Fish Biology and Fisheries" has been written by an international team of scientists and practitioners, to provide an overview of the biology of freshwater and marine fish species together with the science that supports fisheries management and conservation.

This volume, subtitled "Fisheries," focuses on a wide range of topics, including the history of fisheries science, methods of capture, marketing, economics, major models used in stock assessments and forecasting, ecosystem impacts, marine protected areas and conservation. It builds on material in Volume 1, "Fish Biology," which ranges from phylogenetics and biogeography to physiology, recruitment, life histories, genetics, foraging, reproductive behaviour and community ecology.

Together, these books present the state of the art in our understanding of fish biology and fisheries and will serve as valuable references for undergraduates and graduates looking for a comprehensive source on a wide variety of topics in fisheries science. They will also be useful to researchers who need up-to-date reviews of topics that impinge on their fields, and decision makers who need to appreciate the scientific background for management and conservation of aquatic ecosystems.

To order volume II, go to the box in the top right hand corner. Alternatively to order volume I, go to: http: //www.blackwellpublishing.com/book.asp?ref=0632054123 or to order the 2 volume set, go to: http: //www.blackwellpublishing.com/book.asp?ref=0632064838.
Provides a unique overview of the study of fish biology and ecology, and the assessment and management of fish populations and ecosystems.
The first volume concentrates on aspects of fish biology and ecology, both at the individual and population levels, whilst the second volume addresses the assessment and management of fish populations and ecosystems.
Written by an international team of expert scientists and practitioners.
An invaluable reference tool for both students, researchers and practitioners working in the fields of fish biology and fisheries.

Our understanding of the basic biology of owls is poor compared to that of other bird species. The Little Owl, Athene noctua, has become one of the best models for biological and conservation research, due to its commonness and the fact that it occupies nest-boxes very easily. In this unique book the authors synthesise the substantial literature, and detail current information regarding the Little Owl. They discuss its wide-ranging ecology, genetics and subspecies and population status by country. In addition, they outline a strategy and monitoring program for its conservation. The book features an outstanding bibliography of literature on the Little Owl, listing publications dated from 1769 to 2007, in many languages, including Russian, English, French, German, Spanish, Portuguese, Italian and Dutch. Whilst being an invaluable resource for academic researchers, its straightforward style holds undoubted appeal for amateurs and enthusiasts.

Key features: Presents a contemporary snapshot of the mechanisms underlying the evolution and adaptation of behavior Explores how genetics, epigenetics, development, and environment shape behavior Discusses a broad range of behavioral repertoires and responses, including those related to thermoregulatory, foraging, predatory, displaying, social and escape strategies. Examines physiological and sensory mechanisms Covers the effects of various aspects of global change on behavior, with chapters that focus on the impacts of climate change on hydroregulatory behavior and behavioral responses to the effects of habitat alteration resulting from human-mediated change and colonization by invasive species. Lizards serve as focal organisms for many of biological questions related to evolution, ecology, physiology, and morphology. They are studied at multiple spatial and temporal scales, from the individual to the community level. This book, authored by expert contributors from around the world, explores behaviors underlying the evolution and adaptation of these organisms. It covers conceptual, empirical, and methodological approaches to the understanding of the role that natural and sexual selection play in molding the behavioral traits of lizards. This thorough, illustrated reference should stimulate discussion of the conceptual and methodological approaches for studying the behavioral traits of these fascinating and highly diverse vertebrates.

A comprehensive treatment of primate paleontology. Profusely illustrated and up to date, it captures the complete history of the discovery and interpretation of primate fossils. The chapters range from primate origins to the advent of anatomically modern humans. Each emphasizes three key components of the record of primate evolution: history of discovery, taxonomy of the fossils, and evolution of the adaptive radiations they represent. The Primate Fossil Record summarizes objectively the many intellectual debates surrounding the fossil record and provides a foundation of reference information on the last two decades of astounding discoveries and worldwide field research for physical anthropologists, paleontologists and evolutionary biologists.

How birds have evolved and adapted to survive winter Birds in Winter is the first book devoted to the ecology and behavior of birds during this most challenging season. Birds remaining in regions with cold weather must cope with much shorter days to find food and shelter even as they need to avoid predators and stay warm through the long nights, while migrants to the tropics must fit into very different ecosystems and communities of resident birds. Roger Pasquier explores how winter affects birds' lives all through the year, starting in late summer, when some begin caching food to retrieve months later and others form social groups lasting into the next spring. During winter some birds are already pairing up for the following breeding season, so health through the winter contributes to nesting success. Today, rapidly advancing technologies are enabling scientists to track individual birds through their daily and annual movements at home and across oceans and hemispheres, revealing new and unexpected information about their lives and interactions. But, as Birds in Winter shows, much is visible to any interested observer. Pasquier describes the season's distinct conservation challenges for birds that winter where they have bred and for migrants to distant regions. Finally, global warming is altering the nature of winter itself. Whether birds that have evolved over millennia to survive this season can now adjust to a rapidly changing climate is a problem all people who enjoy watching them must consider. Filled with elegant line drawings by artist and illustrator Margaret La Farge, Birds in Winter describes how winter influences the lives of birds from the poles to the equator.

Ecotoxicology of Wild Mammals brings together the latest research on the exposure and effects of environmental contaminants in wild mammal populations.
The underlying theme is encompassed by four questions:

• What exactly do we know about environmental contaminants in wild mammals?
• What are the commonalities and differences between mammal orders/species in the effects that contaminants have?
• How and to what degree of accuracy can we predict the adverse effects of environmental contaminants on mammalian wildlife?
• How significant are contaminant insults compared with other density-independent and -dependent factors such as habitat loss, climatic factors and disease?

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.

The percid fishes (or perch family) comprise many species including the perch, pikeperch, yellow perch, walleye and the darters. These species are of great ecological and economic importance, being important components of the freshwater ecosystem and recreational and commercial fisheries.

"Percid Fishes "covers aspects such as systematics, morphology, biology, ecology, diseases and parasites and the economic importance of percid fisheries. Special emphasis is placed within the book on the complex relationship between this family of fishes and their environment and how they respond to perturbations, especially those induced by humans.

The author, John Craig who has a great deal of experience working on these fishes in many of the countries in which they occur, has drawn together an extremely important book which provides a unique, comprehensive and indispensable review of this most significant group of fish.

This book has three primary themes: identification, natural history, and conservation. This is the first guide yet produced to the amphibians and reptiles of New York State, a large and heavily populated state that hosts a surprisingly diverse and interesting community of amphibians and reptiles. The book presents the results of the New York State Amphibian and Reptile Atlas for the first time (a compilation of ~60,000 distributional records collected 1990-1999); thus, the volume is a repository for detailed distributional data on the 69 species native to the state. The book presents in-depth species accounts based on the six authors' decades of collective experience as teachers, researchers and conservationists. Supporting chapters focus on the biology of amphibians and reptiles, New York's environment, finding and studying these creatures, and the rich folklore of New York State as it pertains to amphibians and reptiles, particularly rattlesnakes. A heavy emphasis on conservation biology of amphibians and reptiles sets the book apart from any comparable volume yet produced in the United States. To this end, chapters on threats, legal protections, habitat conservation guidelines, and conservation case studies are presented. An expanded color insert presents striking photographs contributed by over 30 photographers. The book is intended for use by natural history buffs generally interested in the vertebrate animals of New York and adjoining regions (Pennsylvania, Connecticut, New Jersey, Massachusetts, Vermont, Quebec and Ontario), students in the many herpetology, vertebrate biology, and natural history courses offered at colleges and field stations in the northeast, public and college libraries, and natural resource professionals interested in learning more about approaches to conserving reptiles and amphibians.

Humans and Hyenas examines the origins and development of the relationship between the two to present an accurate and realistic picture of the hyena and its interactions with people. The hyena is one of the most maligned, misrepresented and defamed mammals. It is still, despite decades of research-led knowledge, seen as a skulking, cowardly scavenger rather than a successful hunter with complex family and communal systems. Hyenas are portrayed as sex-shifting deviants, grave robbers and attackers of children in everything from African folk tales through Greek and Roman accounts of animal life, to Disney's The Lion King depicting hyenas with a lack of respect and disgust, despite the reality of their behaviour and social structures. Combining the personal, in-depth mining of scientific papers about the three main species and historical accounts, Keith Somerville delves into our relationship with hyenas from the earliest records from millennia ago, through the accounts by colonisers, to contemporary coexistence, where hyenas and humans are forced into ever closer proximity due to shrinking habitats and loss of prey. Are hyenas fated to retain their bad image or can their amazing ability to adapt to humans more successfully than lions and other predators lead to a shift in perspective? This book will be of great interest to students and scholars in the environmental sciences, conservation biology, and wildlife and conservation issues.

Throughout North America, non-native wild pigs have become an ecologically and economically destructive invasive species. Though they are regarded as a popular game species by some, provide economic benefits to others, and are even engrained into societal heritage in some areas, wild pigs are responsible for an extraordinary amount of damage in both natural and anthropogenic systems throughout North America. As the density and range of wild pig habitat have substantially increased over the last several decades, the magnitude and diversity of their negative impacts are not yet fully realized or quantified. With various conflicts continually emerging, wild pig management is difficult and expensive to achieve. As a result, wild pigs represent one of the greatest wildlife management challenges North America faces in the 21st century. Invasive Wild Pigs in North America: Ecology, Impacts, and Management addresses all aspects of wild pig biology, ecology, damage, and management in a single comprehensive volume. It assimilates and organizes information on the most destructive introduced vertebrate species in the United States, establishing a foundation from which managers, researchers, policy makers, and other stakeholders can build upon into the future. The book provides comprehensive coverage of wild pig biology and ecology, techniques for management and research, and regional chapters. It is an asset to readers interested in wild pigs, the resources they impact, and how to mitigate those impacts, and establishes a vision of the future of wild pigs in North America. Features: Compiles valuable knowledge for a broad audience including wild pig managers, researchers, adversaries, and enthusiasts from across North America Addresses taxonomy, morphology, genetics, physiology, spatial ecology, population dynamics, diseases and parasites, and the naturalized niche of wild pigs Includes chapters on damage to resources, management, research methods, human dimensions and education, and policy and legislation Contains full color images and case studies of interesting and informative situations being created by wild pigs throughout North America Includes a chapter on wild pigs at the wildland-urban interface, a more recent and especially challenging issue

1 Introduction The esophagus is a relatively simple though vital organ. It consists of a two-layered muscular tube whose lumen is lined by squamous strati?ed epithelium. Beyond its role of propelling food from the pharynx to the stomach by a propulsive contraction wave representing the esophageal phase of deglutition (Conklin and Christensen 1994; Jean 2001), it is more and more recognized as a sensory organ from which a variety of respiratory and cardiovascular re?exes can be triggered, thus coop- ating with the larynx in protecting the lower airways from aspiration (Barthelemy et al. 1996; Lang et al. 2002; Lang et al. 2001; Loomis et al. 1997; Medda et al. 2003). In ruminants, there is additional antiperistalsis for regurgitation. During emesis, the esophagus is a merely passive conduit except for some antiperistalsis in its upper part. In the interval between swallows, both oral and aboral ends of the esophagus are tonically closed by the upper and lower esophageal sphincters, UES and LES respectively, while the tubular esophagus is ?accid and partly ?lled with air. Despite this apparent simplicity, neuronal control of esophageal functions is quite complex.

A SPECTATOR BOOK OF THE YEAR Longlisted for the William Hill Sports Book of the Year 'Rich and joyous ...The book's quiet optimism about our ability to change, and to learn to love small things passionately, will stay with me for a long time' Helen Macdonald 'Big-hearted and quietly gripping' Guardian 'I love Jon Day's writing and his birds. A marvellous, soaring account' Olivia Laing '[A] beautiful book about unbeautiful birds' Observer 'This is nature writing at its best' Financial Times 'Awash with historical and literary detail, and moving moments ... Wonderful' Telegraph 'Every page of this beautifully written book brought me pleasure' Charlotte Higgins 'A vivid evocation of a remarkable species and a rich working-class tradition. It's also a charming defence of a much-maligned bird, which will make any reader look at our cooing, waddling, junk-food-loving feathered friends very differently in future' Daily Mail 'Endlessly interesting and dazzlingly erudite, this wonderful book will make a home for itself in your heart' Prospect As a boy, Jon Day was fascinated by pigeons, which he used to rescue from the streets of London. Twenty years later he moved away from the city centre to the suburbs to start a family. But in moving house, he began to lose a sense of what it meant to feel at home. Returning to his childhood obsession with the birds, he built a coop in his garden and joined a local pigeon racing club. Over the next few years, as he made a home with his young family in Leyton, he learned to train and race his pigeons, hoping that they might teach him to feel homed. Having lived closely with humans for tens of thousands of years, pigeons have become powerful symbols of peace and domesticity. But they are also much-maligned, and nowadays most people think of these birds, if they do so at all, as vermin. A book about the overlooked beauty of this species, and about what it means to dwell, Homing delves into the curious world of pigeon fancying, explores the scientific mysteries of animal homing, and traces the cultural, political and philosophical meanings of home. It is a book about the making of home and making for home: a book about why we return.

A fascinating and important work of ornithology, which led E.O. Wilson to call it "one of the most interesting discoveries I've seen in animal sociobiology in years," "Ravens In Winter" is a scientist's impassioned study to understand the mysterious social habits of one of nature's most formidable birds, the raven.
Why do ravens, generally understood to be solitary creatures, share food between each other during winter? This was the question Bernd Heinrich asked himself as he was observing another one of his prime research subjects, the highly social bumblebee. And it was during these trips to Maine, the site of much of his research, where he first noticed this "unusual" behavior of ravens. From an evolutionary perspective, the raven's willingness to share food challenged conventional wisdom. There was no biological imperative, it seemed, to their communal spirit. The more Heinrich observed their habits, the more odd the bird's behavior became. What started as mere curiosity turned into an impassioned research project, and "Ravens In Winter," the first research of its kind, explores the fascinating biological puzzle of the raven's rather unconventional social habits.

Many of us have experienced the interruption, pleasant or otherwise, of a bird singing from high in the trees or a lone chirper perched outside a bedroom window and wondered what the song was about. Following a world expert on birdsong from the woods of Martha's Vineyard to the tropical forests of Central America, Don Staop brings to life the quest to unravel this ancient mystery: Why do birds sing and what do their songs really mean? In this creative mixture of reportage, storytelling, and research, Stap distills the complexities of the study of birdsong and unveils a remarkable discovery that sheds light on the mystery of mysteries: why young birds in the suborder oscines--the "true" songbirds--must learn their songs while closely related birds are born with their songs genetically encoded. As the story unfolds, Stap contemplates our enduring fascination with birdsong, from ancient pictographs and early Greek soothsayers to the story of Mozart's pet starling. He identifies birds by their specific sounds and calls, and explains the true function of a bird's song, from mating calls to claims of territory. In a modern, noisy world, it is increasingly difficult to hear the sounds of nature around us. Exploring birdsong takes us to that rare place--in danger of disappearing forever--where one hears only the planet's oldest music.

Once famous for the beauty of its white beaches, reef-ringed islands, and lush forests, today the Philippines is known as an example of the deep costs of ecological decline. In less than a generation, large and small users alike felled the forests, shattered the coral reefs, and over-fished the oceans. The rapid harvest of the once-abundant resources has brought environmental changes: droughts, deadly flash floods, and the collapse of vital fisheries. The consequences have reverberated throughout the country. As the rural economy weakened, millions migrated to the cities, overwhelming the infrastructure and deepening the problems of urban health. Pioneering efforts have been launched to curtail the environmental damage and manage the resources that remain. Trained as a botanist and plant ecologist, writer Barbara Goldoftas traveled extensively throughout the archipelago to document the loss of the natural resources, the dramatic human costs, and efforts to reverse the decline. Along the forest frontier, she met villagers whose fields had been washed away by mudslides and church workers risking their lives to defend the dwindling forests. In coastal villages, she spoke with fishermen who, having watched their catches diminish with the dying reefs, enforced the boundaries of no-take zones. In towns and villages alike, she interviewed local politicians and leaders of non-governmental organizations working to combine conservation and development and keep their communities intact. Written about a country often described as an environmental worst-case scenario, The Green Tiger offers an unusually close look at the consequences of ecological decline and determined efforts to reverse them. Itargues that, rather than destroying a natural resource base, development should integrate conservation and economic growth. It gives a realistic, but optimistic vision of the long process of "nation-building" that is the backdrop of environmental work in a developing country and a new democracy.

This book explores the factors affecting the survival of small populations. As the human impact on Earth expands, populations of many wild species are being squeezed into smaller and smaller habitats. As a consequence, they face an increasing threat of extinction. National and international conservation groups rush to add these populations, species and sub-species to their existing endangered and threatened lists. In nations with strong conservation laws, listing often triggers elaborate plans to rescue declining populations and restore their habitats. The authors review these theoretical ideas, the existing data, and explore the question: how well do small and isolated populations actually perform? Their case study group is the song sparrows of Mandarte Island, British Columbia. This population is small enough and isolated enough so that all individuals can be uniquely marked and their survival and reproduction monitored over many generations. This is one of the strongest long-term ecological studies of a contained vertebrate population, now in its 31st year.

The dramatic story of the discovery of a 400 million-year-old living fossil. Just before Christmas in 1938, the young woman curator of a small South African museum spotted a strange-looking fish in a trawler's catch. It was five feet long, with steel-blue scales, luminescent eyes and remarkable limb-like fins, unlike those of any other fish she had ever seen. Determined to preserve her unusual find, she searched for days for a way to save it, but ended up with only the skin and a few bones.

A charismatic amateur ichthyologist, J. L. B. Smith saw a thumbnail of the fish and was thunderstruck. He recognised it as a coelacanth (pronounce, 'see-la-kanth'), a creature known from fossils dating back 400 million years and thought to have died out with the dinosaurs. With its extraordinary limbs, the coelacanth was believed to be the first fish to crawl from the sea and evolve into reptiles, mammals and eventually humankind. The discovery was immediately dubbed the 'greatest scientific find of the century'.

Smith devoted his life to the search for a complete specimen, a fourteen-year odyssey which culminated in a dramatic act of international piracy. As the fame of the coelacanth spread, so did rumours and obsessions. Nations fought over it, multimillion-dollar expeditions were launched and submarines hand-built to find it. In 1998 the rumours and the truth came together in a gripping climax, which brought the coelacanth back into the international limelight.

A Fish Caught in Time is the entrancing story of the most rare and precious fish in the world – our own great-uncle forty million times removed.

The function of vertebrate hearing is served by a surprising variety of sensory structures in the different groups of fish, amphibians, reptiles, birds, and mammals. This book discusses the origin, specialization, and functional properties of sensory hair cells, beginning with environmental constraints on acoustic systems and addressing in detail the evolutionary history behind modern structure and function in the vertebrate ear. Taking a comparative approach, chapters are devoted to each of the vertebrate groups, outlining the transition to land existence and the further parallel and independent adaptations of amniotic groups living in air. The volume explores in depth the specific properties of hair cells that allowed them to become sensitive to sound and capable of analyzing sounds into their respective frequency components. Evolution of the Vertebrate Auditory System is directed to a broad audience of biologists and clinicians, from the level of advanced undergraduate students to professionals interested in learning more about the evolution, structure, and function of the ear.

Our ability to 'think' is really one of our most puzzling characteristics. What it would be like to be unable to think? What would it be like to lack self-awareness? The complexity of this activity is striking. 'Thinking' involves the interaction of a range of mental processes--attention, emotion, memory, planning, self-consciousness, free will, and language. So where did these processes arise? What evolutionary advantages were bestowed upon those with an ability to deceive, to plan, to empathize, or to understand the intention of others? In this compelling new work, Peter Gardenfors embarks on an evolutionary detective story to try and solve one of the big mysteries surrounding human existence--how has the modern human being's way of thinking come into existence. He starts by taking in turn the more basic cognitive processes, such as attention and memory, then builds upon these to explore more complex behaviors, such as self-consciousness, mindreading, and imitation. Having done this, he examines the consequences of "putting thought into the world" -i.e., using external media like cave paintings, drawings, and writing. Immensely readable and humorous, the book will be valuable for students in psychology and biology, and accessible to readers of popular science.

Lizards of the World is ultimate book on these fascinating creatures, featuring the all the different types of lizard worldwide. As survivors from the time of the dinosaurs, lizards are scaly, cold-blooded, living fossils - relics from a prehistoric world that remain alive and well in ours. Lizards exert a morbid fascination, in many mythologies they are dark creatures, symbolizing death and misfortune. From chameleons and skinks to geckos and iguanas, Lizards of the World brings these creatures firmly into the light, to reveal their extraordinary diversity Found in almost every type of terrain globally, there are almost 6,500 species of lizard, including lizards with frills, horns or wings, those that drop their tails, and others that squirt blood from their eyes. Here, the lizard family and subfamily profiles, organized phylogenetically, are illustrated with stunning photography. Each profile includes a population distribution map, a table of essential information and a fascinating commentary revealing notable characteristics, fresh scientific understanding and the diversity of species. Written by world-renowned herpetologist Mark O'Shea, Lizards of the World is a magnificent showcase of the natural history and beauty of these remarkable reptiles.

The second edition of the book has sold over 3850 copies, making this our bestselling veterinary textbook. Day passed away in 2020 and Professor Brian Catchpole and Harm HogenEsch are the ideal authors to update this in his stead, actively teaching and researching in this field at the RVC, the UK's biggest veterinary college, and Purdue, a huge vet school in the US. The two new authors give this greater international coverage. The most accessible book on this topic for veterinary students: chapters are concise and informative, focused on the main message. It stands out among the competitor 'tomes' which are expensive and inaccessible, or are geared towards human (or mouse) immunology. In a nutshell, this book provides the essential immunological information specifically for vet students, but remains light and easy to read. Colour illustrations are effective, clear, simple and straight to the point, with nearly one illustration/schematic for each important section/paragraph. The clinical cases bring the material to life, while a short animation adds new practical application via the Support Materials tab on the Routledge website.

West Southwest: Vertebrate Life in Southern California celebrates an amazingly diverse fauna with description, evolutionary background, geographic insight, and ecological detail. Southern California is a vast region of very different habitats - all with an abundance of unique species of plants and animals and all within a day's drive. Southern California shares an evolutionary history with other areas of the Southwest, but it has its own identity. The book is not a field identification guide. Instead, the book provides the evolutionary history of species groups, details where the individual species occur and their habitat preferences, and how they avoid the perils of predation and human impact. Key Selling Features: Summarizes the evolutionary background and ecology of southern California's vertebrates: freshwater fish, amphibians, turtles, snakes, lizards, birds and mammals. Reviews the history of southern California's biotic communities from the coast to the deserts and their association with other areas of the Southwest. Discusses vertebrate design and how it affects performance and lifestyle. Extends and enhances the content of regional field identification guides. Includes 120 maps, figures and color plates.

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.

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.