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The Physiology of Polar Fishes by Anthony Peter Farrell,John F. Steffensen Pdf
Devoted to fishes of high latitudes (Arctic and Antarctic). This book includes themes such as: the uniqueness of the physiology of fishes that live in cold polar environments, an analysis of physiological patterns exemplified by fishes that live poles apart, and how fishes differ from fishes living in more temperate and tropical habitats.
Biology of Antarctic Fish by Guido di Prisco,Bruno Maresca,Bruno Tota Pdf
Biology of Antarctic Fish presents the most recent findings on the biology of fish in the unique environment of the Antarctic ocean. At present the year-round temperature of the coastal waters is very near -1,87 ° C, the equilibrium temperature of the ice-seawater mixture. This extremely low temperature affects different levels of organization of fish life: individuals, organ systems, cells, organelles, membranes, and molecules. Exploring ecology, evolution, and life history as well as physiology, biochemistry, and molecular biology of Antarctic fish the book describes the mechanisms of cold adaptation at all these levels. It provides material for discussion also for fundamental questions in the field of adaptation to an extreme environment and therefore is of particular interest not only to specialized scientists, but also to those involved in basic and evolutionary biology.
This important volume provides an original synthesis and novel overview of Antarctic fish biology, detailing the evolution of these fish in some of the most unusual and extreme environments in the world. Focusing on one group of fish, the notothenoioids, which contain the majority of the current organismal diversity, this book describes a fauna that has evolved in isolation and experienced incredible adaptive radiation by acquiring numerous physiological specializations. Darwin's finches and African cichlids may be joined by Antarctic fishes as exemplars of adaptive radiation.The books' coverage is detailed and comprehensive, and the author clearly recognizes the fact that these fish are a component of a most interesting and biologically unique ecosystem and environment. Topics in Antarctic Fish Biology include past and present environments, fossil records, taxonomic composition of fauna, systematic relationships, diversification, and physiological adaptations.
Marine Biology: a Very Short Introduction by Philip Mladenov Pdf
The oceans are our planet's most distinctive and imposing natural habitat. They cover 71 percent of its surface; support a remarkably diverse and exquisitely adapted array of life forms, from microscopic viruses, bacteria, and plankton to the largest existing animals; and possess many of Earth's most significant, intriguing, and inaccessible ecosystems. In an era in which humans are significantly altering the global environment, the oceans are undergoing rapid and profound changes. The study of marine biology is thus taking on added importance and urgency as people struggle to understand and manage these changes to protect our marine ecosystems. Healthy oceans produce half of the oxygen we breathe; stabilize our climate; create ecosystems that protect our coasts from storms; provide us with abundant food; and host diverse organisms that provide us with natural products for medicine and biotechnology. In this Very Short Introduction, marine biologist Philip Mladenov provides an accessible and up-to-date overview of marine biology, offering a tour of marine life and marine processes that ranges from the unimaginably abundant microscopic organisms that drive the oceans' food web to the apex predators that we exploit for food; from polar ocean ecosystems to tropical coral reefs; and from the luxurious kelp beds of the coastal ocean to deep-ocean hydrothermal vents where life exists without the energy of the sun. Throughout the book he considers the human impacts on marine life including overfishing, plastic and nutrient pollution, the spread of exotic species, and ocean warming and acidification. He discusses the threats these pose to our welfare, and the actions required to put us on a path to a more sustainable relationship with our oceans so that they can be restored and protected for future generations. Mladenov concludes with a new chapter offering an inspiring vision for the future of our oceans in 2050 that can be realised if we are wise enough to accelerate actions already underway and be bold with implementing new approaches. The next decade will decide the state of the oceans that we leave behind for future generations. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Although Antarctic finfish have been exploited for more than two decades and many stocks now appear to be overfished, this is the first detailed account of this fishery. The book begins by giving a comprehensive description of Antarctic fish biology and ecology, the thorough understanding of which is a prerequisite to sound management of the fishery. Subsequent sections consider the course of finfish exploitation and the present state of exploited fish stocks in the Southern Ocean. The author concludes by proposing more effective management methods for the fish resources of the Southern Ocean in light of the Convention on the Conservation of Antarctic Marine Living Resources.
The Biology of Polar Regions by D. N. Thomas,G. E. Fogg,P. Convey,C. H. Fritsen,J. -M. Gili,R. Gradinger,J. Laybourn-Parry,K. Reid,D. W. H. Walton Pdf
There is now an increased awareness of the importance of polar regions in the Earth system, as well as their vulnerability to anthropogenic derived change, including of course global climate change. This new edition offers a concise but comprehensive introduction to polar ecology and has been thoroughly revised and updated throughout, providing expanded coverage of marine ecosystems and the impact of humans. It incorporates a detailed comparison of the Arctic and Antarctic systems, with a particular emphasis on the effects of climate change, and describes marine, freshwater, glacial, and terrestrial habitats. This breadth of coverage is unique in the polar biology literature. As with other titles in the Biology of Habitats Series, particular emphasis is placed on the organisms that dominate these extreme environments although pollution, conservation and experimental aspects are also considered. This accessible text is suitable for both senior undergraduate and graduate students taking courses in polar ecology, often as part of a wider marine biology degree programme. It will also be of value and use to the many professional ecologists and conservation biologists requiring a concise overview of the topic.
Fishes of Antarctica by Guido di Prisco,Eva Pisano,Andrew Clark Pdf
The Antarctic fish fauna has evolved over a long period of geographic and climatic isolation. In the course of this evolution, Antarctic fish have developed specialized adaptations, some of which characterize these organisms as unique. In strong contrast to the continental shelf faunas elsewhere, the Antarctic shelf ichthyofauna is dominated by a single highly endemic group, the Notothenioidei. This group of perciform fish probably first appeared and diversified in the early Tertiary. The development of the Polar Front (referred to as the Antarctic Convergence in the older literature) resulted in a natural oceanographic barrier to migration in either direction, and thus became a key factor in the evolution of Antarctic fish. The dominance of the Antarctic continental shelf fauna by a single taxonomic group of fish provides a simplified natural laboratory for exploring the wealth of physiological, biochemical and ecological adaptations that characterize the fauna. Understanding of the patterns of adaptation in this highly specialized group of fish can tell us much about of evolution.
Fish Physiology: The Physiology of Polar Fishes by Anonim Pdf
Volume 22 of the Fish Physiology Series is entirely devoted to fishes of high latitudes (Arctic and Antarctic). Three central themes comprise the book: the uniqueness of the physiology of fishes that live in cold polar environments, a comparative analysis of physiological patterns exemplified by fishes that live poles apart and, how fishes differ from fishes living in more temperate and tropical habitats. Fish Physiology: The Physiology of Polar Fishes highlights the physiological adaptations that evolved to allow certain fish to exploit the frigid, yet productive, Arctic and Antarctic Oceans. The reader will explore what is known, as well as what remains undiscovered, concerning the fish indigenous to both polar regions. This will be of great interest to physiologists, ichthyologists, and comparative biologists researching low temperature biology, fishery scientists, faculty, graduate students.
Fish Physiology: The Physiology of Polar Fishes by Anonim Pdf
Volume 22 of the Fish Physiology Series is entirely devoted to fishes of high latitudes (Arctic and Antarctic). Three central themes comprise the book: the uniqueness of the physiology of fishes that live in cold polar environments, a comparative analysis of physiological patterns exemplified by fishes that live poles apart and, how fishes differ from fishes living in more temperate and tropical habitats. Fish Physiology: The Physiology of Polar Fishes highlights the physiological adaptations that evolved to allow certain fish to exploit the frigid, yet productive, Arctic and Antarctic Oceans. The reader will explore what is known, as well as what remains undiscovered, concerning the fish indigenous to both polar regions. This will be of great interest to physiologists, ichthyologists, and comparative biologists researching low temperature biology, fishery scientists, faculty, graduate students. Offers an comparative analysis of the arctic and antarctic polar marine environments Authors answer the question: What is special about the physiology of fish from the stenothermal Arctic and Antarctic environments? Includes nine descriptive chapters, 40 tables and over 80 figures
Biology and Ecology of Antarctic Krill by Volker Siegel Pdf
This book gives a unique insight into the current knowledge of krill population dynamics including distribution, biomass, production, recruitment, growth and mortality rates. Detailed analysis is provided on food and feeding, reproduction and krill behaviour. The volume provides an overview on the aspects of natural challenges to the species, which involve predation, parasites and the commercial exploitation of the resource and its management. A chapter on genetics shows the results of population subdivision and summarizes recent work on sequencing transcriptomes for studying gene function as part of the physiology of live krill. The focus of Chapter 4 is on physiological functions such as biochemical composition, metabolic activity and growth change with ontogeny and season; and will demonstrate which environmental factors are the main drivers for variability. Further discussed in this chapter are the bottle necks which occur in the annual life cycle of krill, and the mechanisms krill have adapted to cope with severe environmental condition.
National Research Council,Polar Research Board,Committee on Frontiers in Polar Biology
Author : National Research Council,Polar Research Board,Committee on Frontiers in Polar Biology Publisher : National Academies Press Page : 187 pages File Size : 43,5 Mb Release : 2003-08-08 Category : Science ISBN : 9780309087278
Frontiers in Polar Biology in the Genomic Era by National Research Council,Polar Research Board,Committee on Frontiers in Polar Biology Pdf
As we enter the twenty-first century, the polar biological sciences stand well poised to address numerous important issues, many of which were unrecognized as little as 10 years ago. From the effects of global warming on polar organisms to the potential for life in subglacial Lake Vostok, the opportunities to advance our understanding of polar ecosystems are unprecedented. The era of "genome-enabled" biology is upon us, and new technologies will allow us to examine polar biological questions of unprecedented scope and to do so with extraordinary depth and precision. Frontiers in Polar Biology in the Genomic Revolution highlights research areas in polar biology that can benefit from genomic technologies and assesses the impediments to the conduct of polar genomic research. It also emphasizes the importance of ancillary technologies to the successful application of genomic technologies to polar studies. It recommends the development of a new initiative in polar genome sciences that emphasizes collaborative multidisciplinary research to facilitate genome analyses of polar organisms and coordinate research efforts.
Fish Reproduction by Maria J Rocha,Augustine Arukwe,B.G. Kapoor Pdf
With the decline in world fish stocks, our knowledge of fish reproduction has become fundamental. Reproduction is an essential commitment to future generation. It is also a continuous development process throughout ontogeny, requiring energetic, ecological, physiological, anatomical, biochemical and endrocrinological adaptations. The first chapters highlight important issues affecting fish normal ways of reproductive development; details would focus on species living in opposite environments, such as tropical and polar fishes; far related, as teleosts and cartilaginous fishes; and finally, fish having different reproductive strategies. Thereafter, since many fishes live in detrimental environments, mainly induced by the continuous input of xenobiotic substances into waterways, the authors found it highly pertinent to include this topic. Herein, the authors fix their attention on the factors and mechanisms that may well affect reproductionrelated hormonal systems as also on known consequences for fish living i
Polar Lakes and Rivers by Warwick F. Vincent,Johanna Laybourn-Parry Pdf
This book provides an overview of the ecology of high latitude lakes, rivers and glacial environments in both the North and South polar regions. It describes each ecosystem type, the remarkable aquatic life that thrives in these extreme habitats, and the similarities and differences between Arctic and Antarctic waters.
The Arctic Cod: A Study of Research into the British Trawl Fisheries discusses trawl fishing in the North Sea. The book reviews the history of trawl fishing from the seventeenth century until the mid-nineteenth century when it developed into an industry. Scientific studies of the Artic cod begins in 1860 when the Norwegians started keeping record of their catches at Lofoten. Britain starts to keep reliable records of catches in 1929; and the first study of the Artic cod was by Michael Graham in 1949, done in three ships, the R.V. Ernest Holt, G.O. Sars, and Johan Hjort. The book describes the research work done on the R.V. Ernest Holt at the cod grounds near Bear Island. The Artic cod lives in the Barents Sea and spawn in the Vestfjord; it travels between 1,000 and 1,600 miles each year between its feeding and spawning grounds. The text also describes how the study is undertaken at sea including monitoring temperature measurements, mesh-size, blood samples; and of carrying on studies of fish on the markets, such as recording the number of boats catching what kind of fish. The text also discusses the future of fisheries research in the international arena. This book is suitable for marine biologists, environmentalists, marine conservationists, and researchers interested in marine science.
