This is a companion volume to World Animal Science C4, The Production of Aquatic Animals (Crustaceans, Molluscs, Amphibians and Reptiles). It describes the production of fishes, particularly the most important species or species groups farmed in both marine and fresh waters throughout the world. The volume emphasizes all the systems and practices currently used for production, aspects which are unusual or constrain further development, and key areas of present research.

The success of duck hunters throughout much of North America each fall depends to a large degree upon the spring productivity of the breeding waterfowl in the northern prairie states and the central provinces of Canada. In southern Manitoba, in the Waterfowl Research Station, a privately endowed outdoor laboratory owned by the North American Wildlife Foundation and operated by the Wildlife Management Institute. Its principal purpose is to determine facts useful in the management and perpetuation of this international migratory resource. When Dr. Lyle K. Sowls began his studies at Delta in 1946, many wide gaps remained in the knowledge of the relationship of breeding ducks to their home range. There were many scattered observations and a growing mass of data accumulated through the study of banding returned; but the activities of individual ducks during the critical spring months and the activities and the fate of broods each summer remained largely a mystery. Sowls, working toward his doctorate in wildlife management as a graduate student of the University of Wisconsin, studied the waterfowl at Delta for five years in an attempt to plug some of those gaps through intensive study of the waterfowl on one limited are. His studies developed new techniques and brought out new facts that were startling even to waterfowl biologists, facts of prime importance to the duck hunter or to any one interest in the future of America's waterfowl flights. As a result of Dr. Sowls' research, new light has been shed on such factors as predation, renesting, and homing habits of the important species of game ducks, and already have become the basis for revised hunting regulations and give a new understanding of waterfowl problems.

Molt is an important avian life history event in which feathers are shed and replaced. The timing, duration, seasonality, extent and pattern of molt follows certain strategies and this book reviews and describes these strategies for nearly 190 species based on information gathered from a 30-year study of Central Amazonian birds. Most species accounts are illustrated with several color photos focusing on wing and tail feather molt, molt limits, and how to use these patterns to accurately age birds. Published in collaboration with and on behalf of the American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series is a rich source of life history information for ornithologists working on tropical birds.

Designed to enable newcomers to electrophysiology to choose appropriate preparations and techniques for in vitro studies in vertebrate neurobiology. Emphasizes techniques involving the glass micropipette and other recently developed methods, supplementing easy-to-follow instructions with illustrative schemes, examples of original records, photomicrographs, key word listings, comprehensive reference tables and a list of suppliers and key equipment and reagents.

This book focuses on the first vertebrates to conquer land and their long journey to become fully independent from the water. It traces the origin of tetrapod features and tries to explain how and why they transformed into organs that permit life on land. Although the major frame of the topic lies in the past 370 million years and necessarily deals with many fossils, it is far from restricted to paleontology. The aim is to achieve a comprehensive picture of amphibian evolution. It focuses on major questions in current paleobiology: how diverse were the early tetrapods? In which environments did they live, and how did they come to be preserved? What do we know about the soft body of extinct amphibians, and what does that tell us about the evolution of crucial organs during the transition to land? How did early amphibians develop and grow, and which were the major factors of their evolution? The Topics in Paleobiology Series is published in collaboration with the Palaeontological Association, and is edited by Professor Mike Benton, University of Bristol. Books in the series provide a summary of the current state of knowledge, a trusted route into the primary literature, and will act as pointers for future directions for research. As well as volumes on individual groups, the series will also deal with topics that have a cross-cutting relevance, such as the evolution of significant ecosystems, particular key times and events in the history of life, climate change, and the application of a new techniques such as molecular palaeontology. The books are written by leading international experts and will be pitched at a level suitable for advanced undergraduates, postgraduates, and researchers in both the paleontological and biological sciences.

This volume provides a unique and authoritative source of critically evaluated water quality data concerning the effects of chromium, nickel, aluminum and nitrate on freshwater fish and includes an assessment of the toxicity of mixtures. Commissioned by the European Inland Fisheries Advisory Commission, an agency of the United Nations Food and Agriculture Organisation, the reports cover all stages of life cycle and relevant trophic levels, including aquatic invertebrates and plants and potential bioaccumulation through the food chain. An extensive bibliography is provided for each chapter as well as a complete glossary of terms and fish species mentioned in the text.

This volume is based on the proceedings of a conference held in Sicily, in October 1991. It illustrates the developments in the field of behavioural ecology using fishes, with new or more sophisticated ideas and techniques that offer the potential of powerful analyses of selection on behaviour.

Neuroscience Perspectives provides multidisciplinary reviews of topics in one of the most diverse and rapidly advancing fields in the life sciences. Whether you are a new recruit to neuroscience, or an established expert, look to this series for 'one-stop' sources of the historical, physiological, pharmacological, biochemical, molecular biological and therapeutic aspects of chosen research areas. The sigma receptor was originally thought to be a subset of the opioid receptor family, and it is less than 10 years since it was recognized that this receptor represents unique binding sites in mammalian brain and peripheral organs, distinct from any other known neurotransmitter receptor. Since the sigma receptors exhibit high affinity for members of diverse classes of psychotropic drugs, and have been postulated to be involved in various central nervous disorders, neuroscientists have demonstrated a great deal of interest in the elucidation of these receptor sites and their biological relevance. Relatively little is known about the precise role of sigma receptors in normal brain function and in CNS disorders, despite an overwhelming research effort. This research has resulted in many controversies, some of which have been reconciled while others have not. This volume aims to update the reader on the current situation, and deals with the potential functional significance of these receptors in the brain and peripheral organs and, where appropriate, makes reference to the clinical potential of these sites.

• First-ever birding guide to this celebrated site
• Insider advice on 33 popular places and lesser-known hot spots
• Describes birding opportunities any time of the year

Geography, topography, weather patterns, and unique natural features make Cape May, New Jersey, one of the most important birding sites in North America. Throughout the year thousands of birders travel to Cape May from around the country--and across the ocean--to witness the arrival of tens of thousands of raptors, songbirds, shorebirds, and seabirds. In this guide, Cape May birders can find out exactly when and where in the region to go, what birds they're likely to see, why the birds are there, and what factors could affect the birds' behavior. Filled with the authors' photos, this book offers insider information that will help any birder make the most of a visit. It features a complete Cape May bird list and a description of the region's history complemented by images that show how Cape May has changed over the years, and how it has stayed the same.

Birds' eggs are true wonders of the natural world: they are strong enough to protect the embryo as it grows and to withstand incubation by the parent, yet sufficiently fragile to allow the chick to hatch. Little wonder that the enormous diversity of avian eggs - the amazing range of shapes, sizes, colours, textures and patterns - has long fascinated us. Since boyhood, the renowned landscape photographer Colin Prior has had a passion for wild birds. For him, birds are the embodiment of nature, and fundamentally enrich the experience of being outdoors. This stunning new book presents Prior's remarkable images of birds' eggs side by side with his dramatic photographs of the birds' natural habitats. At a time when many human influences are having an adverse impact on the environment, these habitats are equally fragile and vulnerable to change. Loss of habitat is, in turn, a major factor in the decline of wild bird populations. It has been illegal to take any birds' eggs from the wild in Great Britain since 1954, and since 1982 it has been against the law to possess the egg of any wild bird. The eggs featured in this book belong to the National Museum of Scotland in Edinburgh, which holds one of the world's largest collections of birds' eggs. The eggs were collected legally during the late 19th and early 20th centuries and bequeathed to the museum by private collectors. Prior set up a studio at the museum and spent five weeks photographing more than 300 eggs using the latest digital technology. Each photograph is a compilation of between 40 and 80 separate exposures that were then blended into a single image using specialist software. The final image is an exquisite, almost three-dimensional rendition of the egg, pin-sharp from the front to the back. The eggs vary in size from that of the tiny goldcrest, the UK's smallest bird, to that of the mute swan. In his introduction, Prior describes how his love of the natural world was nurtured by the endless hours he spent in the countryside around the Glasgow suburb where he grew up; how he overcame the technical challenges of photographing the eggs; how the featured eggs were selected from the museum's collection; and how the photography of each bird's habitat was completed. In his essay, the Scottish environmentalist Professor Des Thompson reflects on the state of nature and the relationship between nesting and habitats. In the main part of the book, the birds' eggs are arranged into chapters according to the species found in a particular habitat, such as 'Mountain and Moorland' and 'Seashore and Estuary'. The caption beneath each egg details the common and scientific name of the bird, the date the egg was collected, the size of the clutch, and the egg's dimensions. Each egg is presented in a diptych with a photograph of the bird's habitat, painstakingly captured at a time of year when the dominant colours of the landscape most closely resemble those of the egg. Fragile - the culmination of ten years' work - not only showcases the inherent beauty of birds' eggs, but also serves as a powerful reminder to protect the birds' natural habitats and thereby the birds themselves.

Serves as a comprehensive review to the substantial impact of gene amplification in molecular biology, genetic engineering and medical science. The book covers the mechanism of gene amplification, organization and structure of amplified genes.

A comprehensive, in-depth study of North American waterfowl. This study is covered in three lavishly illustrated volumes. Volume II covers ducks of the deeper waters, often salty, who have marvelously adapted themselves to feeding below the surface, sometimes at incredible depths.

This compact, easy-to-use guide features more than 350 of the most conspicuous and commonly seen birds in Namibia.

Pocket Guide Birds of Namibia offers:

- Concise identification text

- Full-colour photographs of all species covered

- Up-to-date distribution maps

- An informative introduction featuring the ‘specials’ of the key birding destinations in Namibia.

An ideal introduction and travelling companion for birders in or visiting the region.

From two of the world's leading authorities on dogs, an imaginative journey into a future of dogs without people What would happen to dogs if humans simply disappeared? Would dogs be able to survive on their own without us? A Dog's World imagines a posthuman future for dogs, revealing how dogs would survive-and possibly even thrive-and explaining how this new and revolutionary perspective can guide how we interact with dogs now. Drawing on biology, ecology, and the latest findings on the lives and behavior of dogs and their wild relatives, Jessica Pierce and Marc Bekoff-two of today's most innovative thinkers about dogs-explore who dogs might become without direct human intervention into breeding, arranged playdates at the dog park, regular feedings, and veterinary care. Pierce and Bekoff show how dogs are quick learners who are highly adaptable and opportunistic, and they offer compelling evidence that dogs already do survive on their own-and could do so in a world without us. Challenging the notion that dogs would be helpless without their human counterparts, A Dog's World enables us to understand these independent and remarkably intelligent animals on their own terms.

Leaping Ahead: Advances in Prosimian Biology presents a summary of the state of prosimian biology as we move into the second decade of the 21st century. The book covers a wide range of topics, from assessments of diversity and evolutionary scenarios, through ecophysiology, cognition, behavioral and sensory ecology, to the conservation and survival prospects of this extraordinary and diverse group of mammals. The collection was inspired by an international conference in Ithala, KwaZulu-Natal, South Africa in 2007, where prosimian biologists gathered from Canada, Finland, France, Germany, India, Italy, Japan, Madagascar, South Africa, Tanzania, the United Kingdom, and the United States of America. The meeting reverberated with the passion prosimian researchers feel for their study subjects and with their deep concern for the future of prosimians in the face of ongoing habitat destruction and the burgeoning threat of bushmeat hunting. Chapters for this volume were contributed by researchers from across the globe; they attest to the diversity, vibrancy and rapid growth of prosimian biology, and to the intellectual advances that have revolutionized this field in recent years. Since its earliest beginnings, prosimian research and its resultant literature have had a strong francophone component, and researchers in many prosimian habitat countries are more comfortable reading and writing in French rather than English. French summaries of all chapters have been included. The volume is targeted at researchers, both those entering the field and established scientists, who have an interest in the biology of primates and small mammals. It is also aimed at conservation biologists seeking a deeper understanding of the faunas and conservation developments in Africa, Madagascar and Southeast Asia, and anyone who has an interest in discovering the true diversity of our order, the Primates.

From two scientists who have been at the forefront of manatee research for over three decades, The Florida Manatee offers an engaging, accessible introduction to manatee biology, including communication, diet, long-distance migration, and much more. This second edition is updated with new scientific research, as well as discussions of recent conservation efforts-largely driven by manatee injuries and deaths resulting from boat collisions-that have contributed to the robust growth of manatee numbers in Florida. It also includes the latest predictions for manatee populations and health in the future, both in Florida and worldwide. This is the perfect book for anyone seeking the most comprehensive, current information on this fascinating marine mammal.

The contributors to this volume present research concerning the cognitive structures and development of nonhuman primates from a cognitive psychological perspective. The authors and researchers come to this project from the study of humans and apply their knowledge to research on nonhumans. For professional, researchers, and students in cognitive, developmental, and experimental psychology.

Illustrated with 200 outstanding photographs, Dangerous Animals presents an in-depth look at the natural world's most deadly creatures, from poisonous spiders and sea snakes to aggressive lions and man-eating sharks. The selection spans a broad spectrum of wildlife, from large carnivores such as the grizzly bear and great white shark to smaller but equally deadly predators such as the black widow spider and puff adder. Each world habitat is covered, with examples carefully drawn from every region of the planet - from the majestic lion of the African plains and the polar bear of the arctic wastes, to the Komodo dragon of South-east Asia, whose saliva carries poisonous bacteria that can kill a person in hours. Featuring around 100 species, each photographic entry is supported with a fascinating caption, explaining how the animal manages to be so deadly. Beautifully presented, this accessible book is a wonderful introduction to some of the planet's fiercest - or just most poisonous - creatures.

This part completes the review of the largest and economically richest order of fishes, Perciformes, begun in Part 3. It includes 12 suborders with keys and brief descriptions to 230 species, and information on their ecology and distribution.

Kenya, a country only the size of Texas, has one of the richest avifaunas in Africa. This atlas is an explanatory overview of Kenya's 1065 species, essential both to the birdwatcher as a means of finding birds and interpreting the significance of field observations, and to the ornithologist as a standard reference work.

Golden-winged Warblers (Vermivora chrysoptera) are migratory songbirds that breed in temperate North America, primarily in the Great Lakes region with remnant populations throughout the Appalachian Mountains, and winter in Central and northern South America. Their breeding range has contracted dramatically in the Appalachian Mountains and many populations have dramatically declined, likely due to habitat loss, competition and interbreeding with Blue-winged Warblers (Vermivora pinus), andglobal climate change.. As a result of population declines in much of the eastern portion of their breeding range, Golden-winged Warblers are listed as endangered or threatened in 10 U.S. states and in Canada and have been petitioned for protection under the U.S. Endangered Species Act. Published in collaboration with and on behalf of The American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series compiles extensive, current research on Golden-winged Warblers and summarizes what is known and identifies many remaining unknowns, providing a wealth of peer-reviewed science on which future research and listing decisions can be based.

The Reef Guide documents some 800 reef fishes and invertebrates found along the east and south coasts of southern Africa.

Following on the success of Dennis King’s earlier two titles, this impressive new guide features 578 species of fish and includes sections on anemones, starfish, snails, crabs and shrimps.

Full-colour photographs and descriptive text for each species, along with useful and interesting information, make for easy identification. While focusing on southern Africa, the book is also applicable to the entire east coast of Africa, as well as the islands of the western Indian Ocean – Seychelles, Mauritius, Reunion, Madagascar, the Comoros and the Maldives.

Indispensable for divers, snorkelers and rock-pool enthusiasts, as well as fishermen and marine aquarists.

The fourth edition of the textbook "Herpetology" covers the basic biology of amphibians and reptiles, with updates in nearly every conceptual area. Not only does it serve as a solid foundation for modern herpetology courses, but it is also relevant to courses in ecology, behavior, evolution, systematics, and morphology.

Examples taken from amphibians and reptiles throughout the world make this book a useful herpetology textbook in several countries. Naturalists, amateur herpetologists, herpetoculturists, zoo professionals, and many others will find this book readable and full of relevant natural history and distributional information.

Amphibians and reptiles have assumed a central role in research because of the diversity of ecological, physiological, morphological, behavioral, and evolutionary patterns they exhibit. This fully revised edition brings the latest research to the reader, ranging over topics in evolution, reproduction, behavior and more, allowing students and professionals to keep current with a quickly moving field.
Heavily revised and updated with discussion of squamate (lizard and snake) taxonomy and new content reflected in current literature Includes increased focus on conservation biology in herpetology while retaining solid content on organismal biology of reptiles and amphibians Presents new photos included from authors' extensive library