Download or read book Lipid Digestive Enzymes in Developing Larvae of the Atlantic Cod Gadus Morhua and Turbot Scophthalmus Maximus written by Katja Hoehne and published by . This book was released on 1999 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish Larval Physiology written by Roderick Nigel Finn and published by CRC Press. This book was released on 2020-04-30 with total page 741 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended as a resource for students and researchers interested in developmental biology and physiology and specifically addresses the larval stages of fish. Fish larvae (and fish embryos) are not small juveniles or adults. Rather they are transitionary organisms that bridge the critical gap between the singlecelled egg and sexually immature juvenile. Fish larvae represent the stage of the life cycle that is used for differentiation, feeding and distribution. The book aims at providing a single-volume treatise that explains how fish larvae develop and differentiate, how they regulate salt, water and acid-base balance, how they transport and exchange gases, acquire and utilise energy, how they sense their environment, and move in their aquatic medium, how they control and defend themselves, and finally how they grow up.
Download or read book Culture of Cold Water Marine Fish written by Erlend Moksness and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the continuing decline of commercial stocks of wild-caught fish, the interest in the culture of cold-water marine fish is rapidly growing, with much ongoing research into the development of this area. This important and timely book reviews the current and potential future situation concerning the major exploited marine fish species, such as cod, haddock, hake, wolf-fish, halibut, turbot and sole. The editors of Culture of Cold-Water Marine Fish have drawn together and carefully edited chapters from a wide range of international scientists. The contents list includes detailed reviews of abiotic factors, microbial interactions, prophylaxis and disease, live food and first feeding technologies, brood stock and egg production, functional development, weaning and nursery, on-growing to market size, status and perspectives for the species covered, stock enhancement and sea ranching, and an analysis of the finances, economics and markets for the fish species used in marine aquaculture. Culture of Cold-Water Marine Fish is an essential purchase for personnel involved in marine aquaculture, whether managing fish farms, supplying equipment and feed to the industry, or researching, studying or teaching the subject. Marine biologists, fisheries scientists, fish biologists, ecologists and environmental scientists will all find much of use and interest in this timely book. Libraries in all universities and research establishments where these subjects are studied and taught should have copies.
Download or read book Larval Fish Nutrition written by G. Joan Holt and published by John Wiley & Sons. This book was released on 2011-05-24 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition is particularly important in the healthy development of fish during their early-life stages. Understanding the unique nutritional needs of larval fish can improve the efficiency and quality of fish reared in a culture setting. Larval Fish Nutrition comprehensively explores the nutritional requirements, developmental physiology, and feeding and weaning strategies that will allow aquaculture researchers and professionals to develop and implement improved culture practices. Larval Fish Nutrition is logically divided into three sections. The first section looks at the role of specific nutrient requirements in the healthy digestive development of fish. The second section looks at the impacts if nutritional physiology on fish through several early-life stages. The final section looks at feeding behaviors and the benefits and drawbacks to both live feed and microparticulate diets in developing fish. Written by a team of leading global researchers, Larval Fish Nutrition will be an indispensible resource for aquaculture researchers, professionals, and advanced students. Key Features: Reviews the latest research on larval fish nutritional requirements, developmental physiology, and feeding and weaning strategies Extensively covers nutritional needs of various early-life stages in fish development Weighs the benefits and drawbacks to both live feeds and microparticulate diets Written by a global team of experts in fish nutrition and physiology
Download or read book Physiological and Biochemical Aspects of Fish Development written by Bernt T. Walther and published by . This book was released on 1993 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Development of Form and Function in Fishes and the Question of Larval Adaptation written by John Jeffrey Govoni and published by . This book was released on 2004 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, the proceedings of a symposium held at the 26th Annual Larval Fish Conference, of the Early Life History Section of the American Fisheries Society, in Bergen, Norway presented current thought that reflected upon the following questions: when and in what capacity do developing organs or organ systems come on line, and more importantly, are these organs and their functions specializations unique to embryos and larvae, or are they simply rudimentary functional anlage of the adult form. Understanding how larval fish function, how they acquire energy to grow, and how they expend energy to survive is basic to any endeavor in either mariculture or aquaculture. This symposium, and book, invited and drew in scientists from around the world, who have compiled information, achieved understanding, and made their information available in a published symposium volume. The chapters included in this book show the development of form and function in the following major anatomical systems: gross external anatomy (swimming), the integument (osmoregulation and taste), the alimentary canal, other visceral organs, the swim bladder, gills, and sensory systems, as well as blood and circulation.
Download or read book Sustainable Aquaculture written by Carl D Webster and published by CRC Press. This book was released on 2003-08-04 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examine the world's leading aquaculture producers! Sustainable Aquaculture: Global Perspectives is a one-of-a-kind primer on the world's leading sources of aquatic production, presenting expert commentary that includes the latest advancements, developments, and research findings. The book examines essential elements of aquaculture (water quality, nutrition, genetics, culture methods) and addresses problems such as over-fishing, coastal and wetland destruction, and habitat and environmental degradation. Sustainable Aquaculture: Global Perspectives addresses policy measures that are essential for the long-term sustainability of the world's fisheries—and the long-term employment of those who rely on the aquaculture industry for their livelihood. As the world's population increases at an alarming rate, the question of how to ensure global food security is one of extreme importance. But the world's total yield is below expectations and the book examines the reasons why: the under-utilization of natural resources, the lack of adoption of modern scientific methods, the lack of standardized, proven pond fertilization protocols; long-term inbreeding and the loss of genetic variability due to genetic drift. Sustainable Aquaculture: Global Perspectives also addresses: freshwater pearl culture breeding programs pond fertilization regimes fish diseases in tropical climates indoor recirculating culture systems water quality management for shrimp farming and much more! With much of its information available in one place for the first time, Sustainable Aquaculture: Global Perspectives is invaluable as a textbook for introductory aquaculture courses and is an essential resource for professionals and researchers.
Download or read book Oceanic Abstracts written by and published by . This book was released on 1996-10 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery of Digestive Enzymes from Atlantic Cod Gadus Morhua and Their Utilization in Food Processing written by Xiao-Qing Han and published by . This book was released on 1993 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Experimental Biology written by and published by . This book was released on 1999 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Digestive Enzyme Activity in Phenotypic Plasticity During Larval Development of the Pacific Sand Dollar written by Alyssa Syverud (Graduate student) and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Growth and development of planktotrophic larvae are dependent on food availability within nutritionally heterogeneous pelagic ocean habitats. An inability to acquire sufficient food can reduce growth and delay metamorphosis, and thereby decrease survival and recruitment success. Phenotypic plasticity is a broad response mechanism (morphological, physiological, biochemical) that allows an organism of a single genotype the ability to alter its phenotype. Plasticity is considered adaptive when such phenotypic changes positively affect survival and growth in the surrounding environment. Food-induced phenotypic plasticity for feeding structure length is particularly prevalent among planktotrophic echinoid larvae. In low-food environments, larvae will grow longer arms to increase their feeding capacity. In the Pacific sand dollar, Dendraster excentricus, this morphological plasticity is accompanied by critical changes in physiological growth and feeding efficiencies. The purpose of the current research project was to determine whether exposure to algal food during the pre-feeding and early feeding stages influences protein-specific digestive enzyme activity. Enzymes related to protein, lipid, and carbohydrate digestion were investigated throughout the first four days of D. excentricus development. Algal presence during the feeding stages resulted in significant increases in esterase (P = 4.39 x 10-2) and [alpha]-amylase (P = 4.57 x 10-4) activity, demonstrating a strong plasticity response to food environment. Only amylase activities were sensitive to algal exposure during the pre-feeding stage. Pre-feeding and feeding exposure to algal food had an interactive effect on amylase activity (P = 4.48 x 10-2). This finding suggests that embryos acquire environmental information prior to feeding and can change their biochemical phenotype to bolster carbohydrate breakdown in the absence of algae to better prepare for low-food environments. In total, these results demonstrate a multi-dimensional food-induced biochemical plasticity response of larvae to their feeding environment which includes discrete temporal windows of sensitivity and different class-specific enzyme responses. These findings highlight the importance of integrated approaches for understanding the comprehensive nature of phenotypic plasticity responses in developing organisms.
Download or read book Aquaculture Europe written by and published by . This book was released on 1990 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Larval Fish Nutrition written by G. Joan Holt and published by John Wiley & Sons. This book was released on 2011-02-25 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition is particularly important in the healthy development of fish during their early-life stages. Understanding the unique nutritional needs of larval fish can improve the efficiency and quality of fish reared in a culture setting. Larval Fish Nutrition comprehensively explores the nutritional requirements, developmental physiology, and feeding and weaning strategies that will allow aquaculture researchers and professionals to develop and implement improved culture practices. Larval Fish Nutrition is logically divided into three sections. The first section looks at the role of specific nutrient requirements in the healthy digestive development of fish. The second section looks at the impacts if nutritional physiology on fish through several early-life stages. The final section looks at feeding behaviors and the benefits and drawbacks to both live feed and microparticulate diets in developing fish. Written by a team of leading global researchers, Larval Fish Nutrition will be an indispensible resource for aquaculture researchers, professionals, and advanced students. Key Features: Reviews the latest research on larval fish nutritional requirements, developmental physiology, and feeding and weaning strategies Extensively covers nutritional needs of various early-life stages in fish development Weighs the benefits and drawbacks to both live feeds and microparticulate diets Written by a global team of experts in fish nutrition and physiology
Download or read book Digestive Physiology and Food Intake in Marine Fish Larvae written by Sofia Morais and published by LAP Lambert Academic Publishing. This book was released on 2012-07 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: A growth depressing effect of high dietary neutral lipid levels in cultured marine fish larvae has been reported. This may be the result of a decrease in the efficiency or activity of digestive enzymes, a reduction in absorption efficiency and/or a decrease in food intake. This book presents work that was carried out on commercially valuable species (Atlantic herring, Senegalese sole, European seabass and gilthead seabream), to investigate the effects of neutral lipid level and source (fatty acid composition) on some of these key factors. The results collectively indicate that lipid transport across the enterocytes may be more problematic when feeding high neutral lipid diets than lipid digestion, although both factors are likely to intervene. Results also suggest that food intake might be affected by the lipid source included in the diet. Therefore, the neutral lipid level in diets for marine fish larvae has a significant impact in several factors influencing growth but clearly it cannot be dissociated of its fatty acid composition, which appears to play a central role on the nutritional and physiological effects of dietary lipid, at the ingestion, digestion and absorption levels.
Download or read book Emerging Issues in Fish Larvae Research written by Manuel Yúfera and published by Springer. This book was released on 2018-01-22 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the fundamentals of key physiological mechanisms involved in the development and growth of fish larvae. Chapters included show how the environmental and nutritional conditions are affecting the developmental process from its molecular basis and how these same conditions also influence the final characteristics of late larvae and fry. This volume provides recent findings on the importance of environmental rhythms, some specific nutrients and the adequate microbial environment in the developmental processes including recent results of current research projects.
Download or read book Seafood Enzymes written by Norman F. Haard and published by CRC Press. This book was released on 2000-02-25 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Reviews specific enzymes and enzyme groups studied in recent years, delves into the relationship between enzymes and seafood quality, covers the application of enzymes as seafood processing aids, and focuses on the recovery of useful enzymes as by-products from seafood waste. Details the control of enzyme activity in seafood products."
Download or read book Aquaculture Nutrition written by Daniel L. Merrifield and published by John Wiley & Sons. This book was released on 2014-10-20 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manipulation of the microbial gut content of farmed fishes and crustaceans can have a marked effect on their general health, growth, and quality. Expertly covering the science behind the use of prebiotics and probiotics this landmark book explains how the correct manipulation of the gut flora of farmed fishes and crustaceans can have a positive effect on their health, growth rates, feed utilization, and general wellbeing. Aquaculture Nutrition: Gut Health, Probiotics and Prebiotics provides a comprehensive overview of the current knowledge of the gut microbiomes of fish and their importance with respect to host-fish health and performance, providing in-depth, cutting-edge fundamental and applied information. Written by many of the world’s leading authorities and edited by Dr Daniel Merrifield and Professor Einar Ringø, this important book discusses in detail the common mechanisms for modulating microbiomes, particularly at the gut level (e.g. probiotics, prebiotics and synbiotics). The book is a key resource for an understanding of the historical development of these products, their known mechanisms of action and their degree of efficacy as presently demonstrated in the literature. The fundamental material provided on the gut microbiota itself, and more broad aspects of microbe-live feed interactions, provide essential reading for researchers, academics and students in the areas of aquaculture nutrition, fish veterinary science, microbiology, aquaculture, fish biology and fisheries. Those involved in the development and formulation of aquaculture feeds and those with broader roles within the aquaculture industry will find a huge wealth of commercially-important information within the book’s covers. All libraries in universities and research establishments where biological sciences, nutrition and aquaculture are studied and taught, should have copies of this excellent book on their shelves.
