Diseases in Farmed Mud Crabs Scylla Spp PDF Download

Author: Celia R. Lavilla-Pitogo
Publisher:
ISBN: 9789718511718
Category : Scylla serrata
Languages : en
Pages : 89

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Author: Jian-Fang Gui
Publisher: John Wiley & Sons
ISBN: 1119120764
Category : Technology & Engineering
Languages : en
Pages : 1074

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Book Description
Fish have been a major component of our diet and it has been suggested that fish/seafood consumption contributed to the development of the human brain, and this together with the acquisition of bipedalism, perhaps made us what we are. In the modern context global fish consumption is increasing. However, unlike our other staples, until a few years back the greater proportion of our fish supplies were of a hunted origin. This scenario is changing and a greater proportion of fish we consume now is of farmed origin. Aquaculture, the farming of waters, is thought to have originated in China, many millennia ago. Nevertheless, it transformed into a major food sector only since the second half of the last century, and continues to forge ahead, primarily in the developing world. China leads the global aquaculture production in volume, in the number of species that are farmed, and have contributed immensely to transforming the practices from an art to a science. This book attempts to capture some of the key elements and practices that have contributed to the success of Chinese aquaculture. The book entails contributions from over 100 leading experts in China, and provides insights into some aquaculture practices that are little known to the rest of the world. This book will be essential reading for aquaculturists, practitioners, researchers and students, and planners and developers.

Author: Clive Phillip Keenan
Publisher:
ISBN:
Category : Aquaculture
Languages : en
Pages : 222

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Mud crab culture has relied until recently on juvenile stock captured from the natural environment. This practice puts undue pressure on natural stocks and causes concern about the sustainability of mud crab aquaculture. This text documents research carried out to combat such problems.

Author: Frederick S.B. Kibenge
Publisher: Academic Press
ISBN: 0443186103
Category : Technology & Engineering
Languages : en
Pages : 694

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Book Description
Aquaculture Pathophysiology, Volume II. Crustacean and Molluscan Diseases is a concise, practical reference on shellfish diseases of significant risk to aquaculture. Its value to the veterinarian, fish health biologist or extensionist, fish pathologist and fish health diagnostician is its easy reach for critical information on the diagnosis and management of significant infectious and non-infectious diseases for the major temperate, subtropical and tropical shellfish species of commercial and fisheries importance. This volume should be read in partnership with volume one on finfish diseases as the principles and approach to the diagnosis and management of aquacultured animal species are similar. This comprehensive resource is ideal for researchers, teachers, students, diagnostic laboratory scientists, aquaculture technicians, and farmers who need to be competent across both finfish and shellfish health issues. - Presents a focus on the disease process of major or emerging viral, bacterial, fungal and parasitic infections affecting aquacultured shellfish species e.g., shrimp, lobsters, crayfish, crabs, oysters, mussels, abalone and scallops - Focuses on important or emerging environmental, nutritional, genetic, deformity, toxicological, endocrine disruption, and neoplastic diseases in crustaceans and mollusks - Provides a review of the immunology of shellfish relevant to a practical understanding of disease diagnosis and management - Includes an overview of laboratory diagnostic methods relevant to the detection of shellfish diseases - Discusses the diverse risk factors of shellfish diseases and options for their control

Author: Francesca Ottolenghi
Publisher: Fao
ISBN:
Category : Business & Economics
Languages : en
Pages : 344

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Book Description
"The aim of this report is to define and review this "semi-aquaculture practice", which has been more accurately named "capture-based aquaculture." -- Preface.

Author: D. F. Fielder
Publisher:
ISBN: 9780724207473
Category : Crabbing
Languages : en
Pages : 15

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Author: Judith S. Weis
Publisher: Cornell University Press
ISBN: 0801466040
Category : Nature
Languages : en
Pages : 265

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Book Description
The world's nearly 7,000 species of crabs are immediately recognizable by their claws, sideways movement, stalked eyes, and thick outer shells. These common crustaceans are found internationally, thriving in various habitats from the edge of the sea to the depths of the ocean, in fresh water or on land. Despite having the same basic body type as decapod crustaceans-true crabs have heavy exoskeletons and ten limbs with front pincer claws-crabs come in an enormous variety of shapes and sizes, from the near microscopic to the giant Japanese spider crab. In Walking Sideways, Judith S. Weis provides an engaging and informative tour of the remarkable world of crabs, highlighting their unique biology and natural history. She introduces us to recently discovered crabs such as the Yeti crab found in deep sea vents, explains what scientists are learning about blue and hermit crabs commonly found at the shore, and gives us insight into the lifecycles of the king and Dungeness crabs typically seen only on dinner plates. Among the topics Weis covers are the evolution and classification of crabs, their habitats, unique adaptations to water and land, reproduction and development, behavior, ecology, and threats, including up-to-date research. Crabs are of special interest to biologists for their communication behaviors, sexual dimorphism, and use of chemical stimuli and touch receptors, and Weis explains the importance of new scientific discoveries. In addition to the traditional ten-legged crabs, the book also treats those that appear eight-legged, including hermit crabs, king crabs, and sand crabs. Sidebars address topics of special interest, such as the relationship of lobsters to crabs and medical uses of compounds derived from horseshoe crabs (which aren't really crabs). While Weis emphasizes conservation and the threats that crabs face, she also addresses the use of crabs as food (detailing how crabs are caught and cooked) and their commercial value from fisheries and aquaculture. She highlights other interactions between crabs and people, including keeping hermit crabs as pets or studying marine species in the laboratory and field. Reminding us of characters such as The Little Mermaid's Sebastian and Sherman Lagoon's Hawthorne, she also surveys the role of crabs in literature (for both children and adults), film, and television, as well in mythology and astrology. With illustrations that offer delightful visual evidence of crab diversity and their unique behaviors, Walking Sideways will appeal to anyone who has encountered these fascinating animals on the beach, at an aquarium, or in the kitchen.

Author: Santhanam Perumal
Publisher: Springer
ISBN: 8132222717
Category : Science
Languages : en
Pages : 266

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Book Description
This book compiles the latest findings in the field of marine and brackishwater aquaculture. It covers significant topics such as techniques of culture of live feeds (microalgae, rotifer, Artemia, marine copepod & polychaetes), while also highlighting vital themes like the culture and applications of free and marine sponge associated microbial probiotics, controlled breeding, seed production and culture of commercially important fin and shell fishes. Moreover, the book focuses on the breeding and culture of marine ornamental fishes, sea cucumber and sea urchin and discusses seaweeds culture, aqua feed formulation and nutrition, water quality management in hatchery and grow-out culture systems, fish disease diagnosis and health management and cryopreservation of fish gametes for sustainable aquaculture practices, all from a multidimensional perspective. The global fish production was 154 million tonnes in 2011 which more or less consisted of capture and culture fisheries (FAO, 2012). Roughly 80% of this is from inland-freshwater aquaculture and the remainder from capture fisheries in the marine and brackishwater sector. However, marine and brackishwater catches have recently begun to diminish due to overexploitation, climate change and pollution. The UNEP report affirmed that if the world remains on its current course of overfishing, by 2050, the ocean fish stock could become extinct or no longer commercially viable to exploit. In these circumstances, aquaculture is considered to be a promising sector to fulfill our future protein requirement. However, brackishwater and marine fish production now face serious challenges due to e.g. lack of quality fish seeds, feeds, poor water quality management and diseases. Fisheries and aquaculture sectors play a vital role as potential sources of nutritional security and food safety around the globe. Fish food is rich in protein, vitamins, phosphorous, calcium, zinc, selenium etc. In addition, fish contains omega-3 fatty acids, which help to prevent cardiovascular diseases. Fish food can also provide several health benefits to consumers. The omega 3 fatty acids found in fish can reduce the levels of LDL cholesterol (the “bad” cholesterol) and increase the HDL levels (the “good” cholesterol). Research conducted in Australia has proved that fish consumption can be used to cure hypertension and obesity. It is also reported that people who ate more fish were less prone to asthma and were able to breathe more easily. Omega 3 fish oil or fish consumption can help to prevent three of the most common forms of cancer: breast cancer, colon and prostate cancer. The omega 3 fatty acids present in fish or fish oil induce faster hair growth and prevent hair loss. Since most varieties of fish are rich in protein, eating fish helps to keep hair healthy. Furthermore, fish or fish oil helps in improving the condition of dry skin, giving it a healthy glow. It is useful in treating various skin problems such as eczema, psoriasis, itching, redness of skin, skin lesions and rashes. It is well known that eating fish improves vision and prevents Alzheimer’s and type-2 diabetes, and can combat arthritis. Further, fish oil or fish is good for pregnant women, as the DHA present in it helps in the development of the baby’s eyes and brain. It helps to avoid premature births, low birth weights and miscarriages. In addition, it is widely known that fish can be a good substitute for pulses in cereal-based diets for the poor. The global fish production was roughly 154 million tonnes in 2011 (FAO, 2012). It is estimated that by 2020 global fish requirements will be over 200 million tonnes; as such, innovative technological improvements are called for in order to improve the production and productivity in fisheries. In this context, this book provides valuable information for academics, scientists, researchers, government officials and farmers on innovative technological advances for sustainable fish production using aquaculture methods. The book identifies the main issues and trends in marine and brackishwater aquaculture from a global perspective in general and in the Indian context in particular. It includes 23 chapters written by prominent researchers from various institutes and universities across India, who address the latest aquaculture technologies with distinctive approaches to support academics, researchers and graduates in the fields of Fisheries, Aquaculture, Marine Science, Marine Biology, Marine Biotechnology, Zoology and Agricultural Sciences. Our thanks go to our contributors; we are confident that all readers will immensely benefit from their valued expertise in the field of marine and brackishwater aquaculture.

Author: C. Kenneth Dodd
Publisher: Oxford University Press
ISBN: 0199541191
Category : Nature
Languages : en
Pages : 585

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Book Description
Describes the latest methodologies used to study the ecology of amphibians throughout the world. Each of the 27 chapters explains a research approach or technique, with emphasis on careful planning and the potential biases of techniques. Statistical modelling, landscape ecology, and disease are covered for the first time in a techniques handbook.

Author: C.J. Sindermann
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 460

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Book Description
The first edition of this book on diagnosis and control of diseases in North American marine aquaculture was published in 1977, with the promise that the material would be updated frequently, in view of the rapid expansion of marine aquaculture and the importance of disease control to successful production. Now, ten years later, the promised update has finally been prepared, incorporating new information that has been published in the intervening time. The concept and format of the book remain the same - to present information on disease diagnosis and control in a concise standard format, emphasising those diseases which affect survival of cultured populations. Because of the amount of new material, many new sections have been added, and some of the previous sections have been rewritten entirely or almost so. This is particularly true of the section on penaeid shrimp, which now contains current descriptions of 28 diseases. As with the original edition, many disease specialists have contributed individually authored sections in their areas of expertise. The editors have authored some of the major sections and have added introductory material, but the work represents a genuine group effort. The volume will be essential reading for all those involved in the diagnosis and control of disease in aquacultured species throughout the world, and indeed for aquaculturists in general.