Expanded and updated, this second edition considers fish diseases in the context of the fish's environment, and includes coverage of many aspects of microbiology. The authors provide information on the structure of fish in order to help familiarize readers with general fish anatomy. All the bacterial taxa which have been reported as fish pathogens are included, and the material is subdivided for easy reference into sections which deal with characteristics of the diseases, isolation methods, characterization of the pathogens, diagnosis, epizootilogy, pathogenicity mechanisms and control. Written by bacteriologists for microbiologists, the book tabulates the identification procedures, and gives characteristics of pathogens, the diseases and their control. As farmed fish are of greater commercial importance, and the consequences of losses attributable to bacterial fish pathogens therefore of greater economic consequence, the authors concentrate on these rather than on wild stocks.

This volume focuses on those instances when benign and even beneficial relationships between microbes and their hosts opportunistically change and become detrimental toward the host. It examines the triggering events which can factor into these changes, such as reduction in the host’s capacity for mounting an effective defensive response due to nutritional deprivation, coinfections and seemingly subtle environmental influences like the amounts of sunlight, temperature, and either water or air quality. The effects of environmental changes can be compounded when they necessitate a physical relocation of species, in turn changing the probability of encounter between microbe and host. The change also can result when pathogens, including virus species, either have modified the opportunist or attacked the host’s protective natural microflora. The authors discuss these opportunistic interactions and assess their outcomes in both aquatic as well as terrestrial ecosystems, highlighting the impact on plant, invertebrate and vertebrate hosts.

Clinical Guide to Fish Medicine Designed as a practical resource, Clinical Guide to Fish Medicine provides an evidence-based approach to the veterinary care of fish. This guide—written and edited by experts in the field—contains essential information on husbandry, diagnostics, and case management of bony and cartilaginous fish. This important resource: Provides clinically relevant information on topics such as anatomy, water quality, life-support systems, nutrition, behavioral training, clinical examination, clinical pathology, diagnostic imaging, necropsy techniques, anesthesia and analgesia, surgery, medical treatment, and transport Describes common presenting problems of fish, including possible differentials and practical approaches Reviews key information on non-infectious and infectious diseases of fish in a concise format that is easily accessible in a clinical setting Written for veterinarians, biologists, technicians, specialists, and students, Clinical Guide to Fish Medicine offers a comprehensive review of veterinary medicine of fish.

The important volume summarizes the current trends and developments in the study of bacterial and viral fish diseases. Books on these subjects are few and relevant review articles are mostly outdated. This volume will thus serve as a platform for scientists and aquaculturists to understand the current limitations as well as new developments so that fish health and disease control can advance to new heights.The first section provides readers with an overview of the bacterial and viral diseases and the current understanding of innate immunity and interactions with pathogens. Section II includes case studies, where three pathogens are presented, namely two bacteria (Aeromonas hydrophila and Vibrio anguillarum, the common causes of bacterial diseases in freshwater and marine aquaculture, respectively) and the white spot syndrome virus (an important viral disease in shrimp). These case studies serve as models for the study of various bacterial and viral diseases. Section III presents new platform technologies that are widely used in the study of human pathogens. It aims to spur fish biologists to use modern and cutting edge technologies for their studies so that the study of fish disease can move into the mainstream and focus on the basics. The final section is on marine biotechnology, discussing biotechnology products that are urgently needed for the aquaculture industry — spin-offs from basic research, including diagnostics, immunotherapy and vaccine development, and the use of probiotics.

Bacterial diseases are among the most important causes of losses among fish stocks. A full understanding of the aetiological agent, the pathogenesis, biochemistry, antigenicity, epizootiology and the inter-relationship of stress-related and environmental factors is essential for successful management and control. This book, which has been written as a standard text for students of aquaculture, veterinarians and microbiologists, brings these aspects together and reflects current international practices and incidence.

There has been a continual expansion in aquaculture, such that total production is fast approaching that of wild-caught fisheries. Yet the expansion is marred by continued problems of disease. New pathogens emerge, and others become associated with new conditions. Some of these pathogens become well established, and develop into major killers of aquatic species. Diagnosis and Control of Diseases of Fish and Shellfish focuses on the diagnosis and control of diseases of fish and shellfish, notably those affecting aquaculture. Divided into 12 chapters, the book discusses the range of bacterial, viral and parasitic pathogens, their trends, emerging problems, and the relative significance to aquaculture. Developments in diagnostics and disease management, including the widespread use of serological and molecular methods, are presented. Application/dose and mode of action of prebiotics, probiotics and medicinal plant products used to control disease are examined, as well as the management and hygiene precautions that can be taken to prevent/control the spread of disease. This book will be a valuable resource for researchers, students, diagnosticians, veterinarians, fish pathologists and microbiologists concerned with the management of diseases of fish and shellfish.

The knowledge of isolation and identification of bacteria from aquatic animals and the aquatic environment is expanding at a rapid rate. New organisms, be they pathogens, environmental, normal flora, or potential probiotics, are being described and reported each month. This has resulted due to increases in aquaculture research, in intensive fish farming systems, and in the international trade of live aquatic animals and products as well as the emergence of new diseases. This manual provides a source that enables the identification of bacteria that may be found in animals (particularly fish) that inhabit the aquatic environment. The emphasis is on bacteria from farmed aquatic animals.