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Author | : Guido van den Thillart |
Publisher | : Springer Science & Business Media |
Total Pages | : 472 |
Release | : 2008-12-18 |
Genre | : Science |
ISBN | : 1402090951 |
Freshwater eels are almost infinitely improbable creatures. They spawn and die in the middle of the ocean, often associated with undersea mountains. Their tra- parent, leaf-like larvae move with ocean currents for months or years until they approach the mouths of freshwater rivers. Then they undergo a dramatic transf- mation in morphology, physiology and behavior. They move from their planktonic oceanic environment, migrate upstream and live for several years as apex fre- water predators. Then, almost impossibly, as they become sexually mature, they reverse their migration downstream to the ocean and back to spawning grounds to complete their life cycle. The dramatic changes in their life cycles are incredible. The efforts to unravel the details of their life history have been truly daunting. Much of the past research was the work of dedicated individuals who devoted their lifetime research to these fishes. Freshwater eels merit a separate chapter in almost any textbook dealing with ichthyology, marine biology or animal migration. We know a great deal about some aspects of the biology of freshwater eels. However, our understanding of their bi- ogy still resembles a work of art as much as a work of science. To some it appears like the sweeping brush strokes of a Japanese Zen landscape, to others it resembles the work of a French impressionist, and to still others it appears as magic realism.
Author | : Francesca Trischitta |
Publisher | : CRC Press |
Total Pages | : 374 |
Release | : 2016-04-19 |
Genre | : Nature |
ISBN | : 146659828X |
Eel of the genus Anguilla is an extraordinary fish, which due to its particular life cycle has fascinated biologists and physiologists ever since the pioneering works of Homer H. Schmidt in the 1930s. The Eel has become an excellent model for various aspects of adaptive physiological research. Despite that, several books dealing with eel biology, a
Author | : Arjan P. Palstra |
Publisher | : Springer Science & Business Media |
Total Pages | : 427 |
Release | : 2012-08-30 |
Genre | : Science |
ISBN | : 3642310494 |
In light of mounting fishing pressures, increased aquaculture production and a growing concern for fish well-being, improved knowledge on the swimming physiology of fish and its application to fisheries science and aquaculture is needed. This book presents recent investigations into some of the most extreme examples of swimming migrations in salmons, eels and tunas, integrating knowledge on their performance in the laboratory with that in their natural environment. For the first time, the application of swimming in aquaculture is explored by assessing the potential impacts and beneficial effects. The modified nutritional requirements of “athletic” fish are reviewed as well as the effects of exercise on muscle composition and meat quality using state-of-the-art techniques in genomics and proteomics. The last chapters introduce zebrafish as a novel exercise model and present the latest technologies for studying fish swimming and aquaculture applications.
Author | : Manabu Yoshida |
Publisher | : Springer Nature |
Total Pages | : 373 |
Release | : 2020-03-25 |
Genre | : Science |
ISBN | : 9811522901 |
This book provides an up-to-date overview of the various reproductive systems of a variety of aquatic animals, from invertebrates to fishes. While all terrestrial animals use internal fertilization, aquatic animals have diverse reproductive systems. Some are internal fertilizers with or without mating, but many perform external fertilization. Because of this diversity, the reproductive systems of aquatic animals represent excellent models for the study of adaptive evolution and the species specificity of fertilization. In addition, many aquatic animals, including fish, crustaceans, and mollusks, are important as fishery and aquaculture resources. In this book, up-and-coming researchers examine reproductive systems in representative aquatic animals, covering both the basic knowledge and late-breaking results. Reproduction in Aquatic Animals: From Basic Biology to Aquaculture Technology will be of interest to graduate and postgraduate students in biology and agricultural sciences, as well as to researchers and technicians in the fields of reproductive biology and fishery science and to non-academics.
Author | : Charles P. Poole |
Publisher | : Elsevier |
Total Pages | : 671 |
Release | : 2010-07-20 |
Genre | : Science |
ISBN | : 0080550487 |
Superconductivity, 2E is an encyclopedic treatment of all aspects of the subject, from classic materials to fullerenes. Emphasis is on balanced coverage, with a comprehensive reference list and significant graphicsfrom all areas of the published literature. Widely used theoretical approaches are explained in detail. Topics of special interest include high temperature superconductors, spectroscopy, critical states, transport properties, and tunneling.This book covers the whole field of superconductivity from both the theoretical and the experimental point of view. - Comprehensive coverage of the field of superconductivity - Very up-to date on magnetic properties, fluxons, anisotropies, etc. - Over 2500 references to the literature - Long lists of data on the various types of superconductors
Author | : David Monger |
Publisher | : Cambridge Scholars Publishing |
Total Pages | : 330 |
Release | : 2014-10-02 |
Genre | : History |
ISBN | : 1443868388 |
Endurance was an inherent part of the First World War. The chapters in this collection explore the concept in New Zealand and Australia. Researchers from a range of backgrounds and disciplines address what it meant for New Zealanders and Australians to endure the First World War, and how the war endured through the Twentieth Century. Soldiers and civilians alike endured hardship, discomfort, fears and anxieties during the war. Officials and organisations faced unprecedented demands on their time and resources, while Maori, Australian Aborigines, Anglo-Indian New Zealanders and children sought their own ways to contribute and be acknowledged. Family-members in Australia and New Zealand endured uncertainty about their loved ones’ fates on distant shores. Once the war ended, different forms of endurance emerged as responses, memories, myths and memorials quickly took shape and influenced the ways in which New Zealanders and Australians understood the conflict. The collection is divided into the themes of Institutional Endurance, Home Front Endurance, Battlefield Endurance, Race and Endurance, and Memorials.
Author | : Eugenie Samuel Reich |
Publisher | : Macmillan |
Total Pages | : 276 |
Release | : 2009-05-12 |
Genre | : Science |
ISBN | : 9780230224674 |
Discusses the scientific scandal that arose when researchers at Bell Laboratories discovered that wunderkind physicist Jan Hendrik Schön falsified his data to prove that he had discovered a simpler way to make transistors, which would have drastically improved energy technology.
Author | : Theodore Michael Dracos |
Publisher | : Beacon Press |
Total Pages | : 305 |
Release | : 2012-03-06 |
Genre | : Nature |
ISBN | : 0807006327 |
Whether or not you've heard of PCBs (polychlorinated biphenyls), it's likely that this toxic chemical can be found in your cells. PCBs were invented in 1920 for the electronics industry, fueled the WWII military machine, then were put to domestic uses, and finally came to be present in every corner of the earth. Because PCBs were outlawed in 1976, most people think they are no longer a threat. However, like many industrial chemicals, PCBs persist in our environment and continue to accumulate in practically every life form on earth, becoming more concentrated in the tissues of those highest on the food chain--like us. In Biocidal, investigative journalist Ted Dracos explores the science behind how PCBs affect the environment, amphibians, fish, and mammals. He also draws on extensive research to document the connection between PCBs and catastrophic human illness. From the beginning--even as workers in the first manufacturing plants quickly began to suffer skin lesions, boils, liver failure, and death--the industry denied the danger of its chemicals and manipulated science, regulatory agencies, and the government to continue to make and distribute PCBs throughout the next half-century. Dracos provides the latest scientific findings in the heated controversy that surrounds the continued health impacts of PCBs, ranging from cancer to immunosupression, endocrine disruption, fetal brain development, reproductive abnormalities, and even autism. Yet Biocidal is optimistic, leaving readers with a complete and surprisingly uncomplicated blueprint of what can be done--and is being done--to counter the risks and damages of PCBs and other industrial chemicals.
Author | : Andrej Szytula |
Publisher | : CRC Press |
Total Pages | : 289 |
Release | : 2020-07-09 |
Genre | : Science |
ISBN | : 0429612834 |
Rare-earth intermetallics, also known as lanthanide elements, play an important role in the study of magnetic materials and the development of semi- and super-conducting materials. This handbook provides an up-to-date compilation of crystallographic, physical, and magnetic data on rare-earth intermetallic compounds. Over 20 different structure types are described in detail with an emphasis on how crystal structure can affect magnetic properties. Theoretical models for magnetic interactions are described as well as the impact of crystal electric fields on transport properties, magneto crystalline anistropy and hyperfine interactions. This book provides materials scientists, engineers and physicists with all the critical information needed to use rare-earth intermetallics effectively in the development of new materials.
Author | : L. Eyring |
Publisher | : Elsevier |
Total Pages | : 780 |
Release | : 2002-01-10 |
Genre | : Science |
ISBN | : 9780444507624 |
This volume of the handbook covers a variety of topics with three chapters dealing with a range of lanthanide magnetic materials, and three individual chapters concerning equiatomic ternary ytterbium intermetallic compounds, rare-earth polysulfides, and lanthanide organic complexes. Two the chapters also include information of the actinides and the comparative lanthanide/actinide behaviors.