Download or read book Government of Canada Publications written by and published by . This book was released on 1981 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms written by and published by DIANE Publishing. This book was released on 2002 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Algal Chemical Ecology written by Charles D. Amsler and published by Springer Science & Business Media. This book was released on 2007-11-03 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Yet another Springer world-beater, this is the first ever book devoted to the chemical ecology of algae. It covers both marine and freshwater habitats and all types of algae, from seaweeds to phytoplankton. While the book emphasizes the ecological rather than chemical aspects of the field, it does include a unique introductory chapter that serves as a primer on algal natural products chemistry.
Download or read book Invertebrate Immunology written by B. Rinkevich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biological bases of invertebrate immune responses have interested scientists for decades, from the first relevant observation by E. Metchnikoff in 1882, who discovered phagocytosis while studying starfish larvae. Invertebrate immunology first began to be appre ciated as an important field in the late 1960s and 1970s. However, in the following years there was much controversy regarding the question: do invertebrates offer insight into the origin of the sophisticated immune responses of the vertebrates? There are several reasons why progress in research on invertebrate immune competence has been painfully slow. One of the main impediments to the progress, as compared to the fast development of knowledge in the vertebrate systems, was the fact that most of the studies concentrated on "whole organism" assays, mainly on grafting tissues between allogeneic partners. Only in the last few years have more and more aspects of invertebrate immunity been investigated on the cellular, biochemical and molecular levels. These studies led to discoveries of novel defense reactions, new pathways of effector mechanisms which are elicited after recognition of "nonself', and complex, sometimes highly polymorphic genetic elements that control invertebrate immune reactions. The importance of invertebrate immunity for understanding "immunology" as a whole, despite the conflicting models and hypotheses, is now much more recognized than before. Although most of the 20 phyla belonging to the inver tebrates have different modes of life, body organizations, habitats occupied, and biochemical patterns, they show striking aspects of exceptional precision for discriminating between self and nonself.
Download or read book Marine and Industrial Biofouling written by Hans-Curt Flemming and published by Springer Science & Business Media. This book was released on 2008-12-11 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biofouling is a costly problem, and it is encountered in a wide spectrum of technical systems, ranging from the shipping industry, power industry, water purification, automobile industry, paint and pharmaceuticals, to the microelectronics and food industries. Micro- and macroorganisms attach to surfaces and accumulate there, forming biofilms that cause interferences – a fundamentally natural process. Usually, a medical paradigm is applied: kill biofilms and the problem is solved. This leads to excessive biocide use. However, the success of this strategy is very limited; furthermore it leads to equipment damage and environmental pollution. Simply trying to kill the fouling organisms is clearly not seen as a successful strategy while cleaning is put forward as much more important. In this book, strategies to prevent adhesion, to mitigate the extent and effects of biofouling, and to detect and remove fouling layers are presented. Holistic approaches to the fouling process are elaborated, taking into account options such as nutrient limitation, repellent and easy-to-clean surfaces for fouling layer limitation, and replacing biocides with more environmentally friendly methods – in other words: learning how to live with fouling biofilms without suffering the damage they can do.
Download or read book Short term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms written by and published by . This book was released on 1994 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Body Size The Structure and Function of Aquatic Ecosystems written by Alan G. Hildrew and published by Cambridge University Press. This book was released on 2007-07-12 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecologists have long struggled to predict features of ecological systems, such as the numbers and diversity of organisms. The wide range of body sizes in ecological communities, from tiny microbes to large animals and plants, is emerging as the key to prediction. Based on the relationship between body size and features such as biological rates, the physics of water and the amount of habitat available, we may be able to understand patterns of abundance and diversity, biogeography, interactions in food webs and the impact of fishing, adding up to a potential 'periodic table' for ecology. Remarkable progress on the unravelling, describing and modelling of aquatic food webs, revealing the fundamental role of body size, makes a book emphasising marine and freshwater ecosystems particularly apt. In this 2007 book, the importance of body size is examined at a range of scales that will be of interest to professional ecologists, from students to senior researchers.
Download or read book UV Effects in Aquatic Organisms and Ecosystems written by E Walter Helbling and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers extensive coverage of the most important aspects of UVR effects on all aquatic (not just freshwater and marine) ecosystems, encompassing UV physics, chemistry, biology and ecology. Comprehensive and up-to-date, UV Effects in Aquatic Organisms and Ecosystems aims to bridge the gap between environmental studies of UVR effects and the broader, traditional fields of ecology, oceanography and limnology. Adopting a synthetic approach, the different sections cover: the physical factors controlling UVR intensity in the atmosphere; the penetration and distribution of solar radiation in natural waters; the main photochemical process affecting natural and anthropogenic substances; and direct and indirect effects on organisms (from viruses, bacteria and algae to invertebrate and vertebrate consumers). Researchers and professionals in environmental chemistry, photochemistry, photobiology and cell and molecular biology will value this book, as will those looking at ozone depletion and global change.
Download or read book Restoring Coastal Marine Habitats written by United States. National Oceanic and Atmospheric Administration and published by . This book was released on 2001 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Archaeology of Abundance written by Kristina M. Gill and published by University Press of Florida. This book was released on 2019-01-23 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: The islands of Alta and Baja California changed dramatically in the centuries after Spanish colonists arrived. Native populations were decimated by disease, and their lives were altered through forced assimilation and the cessation of traditional foraging practices. Overgrazing, overfishing, and the introduction of nonnative species depleted natural resources severely. Most scientists have assumed the islands were also relatively marginal for human habitation before European contact, but An Archaeology of Abundance reassesses this long-held belief, analyzing new lines of evidence suggesting that the California islands were rich in resources important to human populations. Contributors examine data from Paleocoastal to historic times that suggest the islands were optimal habitats that provided a variety of foods, fresh water, minerals, and fuels for the people living there. Botanical remains from these sites, together with the modern resurgence of plant communities after the removal of livestock, challenge theories that plant foods had to be imported for survival. Geoarchaeological surveys show that the islands had a variety of materials for making stone tools, and zooarchaeological data show that marine resources were abundant and that the translocation of plants and animals from the mainland further enhanced an already rich resource base. Studies of extensive exchange, underwater forests of edible seaweeds, and high island population densities also support the case for abundance on the islands. Concluding that the California islands were not marginal environments for early humans, the discoveries presented in this volume hold significant implications for reassessing the ancient history of islands around the world that have undergone similar ecological transformations. A volume in the series Society and Ecology in Island and Coastal Archaeology, edited by Victor D. Thompson
Download or read book SEA STARS SEA URCHINS ALLIES written by HENDLE GORDON and published by Smithsonian. This book was released on 1995-08-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Echinoderms, the star fish skeletons that beachcombers collect, are brilliantly colored and intricately ornamented creatures in their natural habitat. This reference features over 130 color photographs of five classes of echinoderms (sea stars, brittle stars, sea urchins, feather stars, and sea cucu
Download or read book Modern Trends in Applied Aquatic Ecology written by R.S. Ambasht and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organisms and environment have evolved through modifying each other over millions of years. Humans appeared very late in this evolutionary time scale. With their superior brain attributes, humans emerged as the most dominating influence on the earth. Over the millennia, from simple hunter-food gatherers, humans developed the art of agriculture, domestication of animals, identification of medicinal plants, devising hunting and fishing techniques, house building, and making clothes. All these have been for better adjustment, growth, and survival in otherwise harsh and hostile surroundings and climate cycles of winter and summer, and dry and wet seasons. So humankind started experimenting and acting on ecological lines much before the art of reading, writing, or arithmetic had developed. Application of ecological knowledge led to development of agriculture, animal husbandry, medicines, fisheries, and so on. Modem ecology is a relatively young science and, unfortunately, there are so few books on applied ecology. The purpose of ecology is to discover the principles that govern relationships among plants, animals, microbes, and their total living and nonliving environmental components. Ecology, however, had remained mainly rooted in botany and zoology. It did not permeate hard sciences, engineering, or industrial technologies leading to widespread environmental degradation, pollution, and frequent episodes leading to mass deaths and diseases.
Download or read book Environmental Effects of Ozone Depletion written by United Nations Environment Programme and published by United Nations Publications. This book was released on 1998-01-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photomovement written by D.-P. Häder and published by Elsevier. This book was released on 2001-06-19 with total page 959 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume emphasizes the involvement of all facets of biology in the analysis of environmentally controlled movement responses. This includes biophysics, biochemistry, molecular biology and as an integral part of any approach to a closer understanding, physiology. The initial euphoria about molecular biology as the final solution for any problem has dwindled and the field agrees now that only the combined efforts of all facets of biology will at some day answer the question posed more than hundred years ago: "How can plants see?". One conclusion can be drawn from the current knowledge as summarized in this volume. The answer will most likely not be the same for all systems.
Download or read book Methods for Acute Toxicity Tests with Fish Macroinvertebrates and Amphibians written by Committee on Methods for Toxicity Tests with Aquatic Organisms and published by . This book was released on 1975 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Ecosystems Interactivity of Dissolved Organic Matter written by Stuart Findlay and published by Academic Press. This book was released on 2003 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overviews of the source, supply and variability of DOM, surveys of the processes that mediate inputs to microbial food webs, and syntheses consolidating research findings provide a comprehensive review of what is known of DOM in freshwater. This book will be important to anyone interested in understanding the fundamental factors associated with DOM that control aquatic ecosystems."--BOOK JACKET.
