Effects of Pollutants on Aquatic Organisms PDF Download
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Author: A. P. M. Lockwood
Publisher: CUP Archive
ISBN: 9780521211031
Category : Nature
Languages : en
Pages : 212
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Book Description
Author: A. P. M. Lockwood
Publisher: CUP Archive
ISBN: 9780521211031
Category : Nature
Languages : en
Pages : 212
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Book Description
Author: Osmund Holm-Hansen
Publisher:
ISBN:
Category : Ecosystem management
Languages : en
Pages : 956
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Book Description
Author: National Science Foundation (U.S.)
Publisher:
ISBN:
Category : Federal aid to research
Languages : en
Pages : 256
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Book Description
Author: G.D. Grice
Publisher: Springer Science & Business Media
ISBN: 1461256453
Category : Science
Languages : en
Pages : 426
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Book Description
Techniques developed for enclosing viable natural planktonic ecosystems pro vided the opportunity for prolonged and detailed investigation of dynamic events within the pelagic system of a known water body. Recent investigations into plankton ecology, using enclosure systems in dif ferent marine environments, are discussed in relation to the data obtained from the Nanaimo, British Columbia, Canada, plastic-sphere experiments of 1960 and 1962. Three types of modern enclosure experiments are recognized: floating systems within nutrient levels maintained or running down, and benthic attached systems. The review largely discusses results from the two kinds of floating systems. Processes at several trophic levels have been investigated in enclosures. This review attempts to draw together details from all experimental systems to emphasize the enclosures' contribution to our understanding of planktonic systems. Enclosures made it possible to examine primary production processes, particularly in relation to inorganic nutrient availability and water-column sta bility. Recent experiments have used the understanding of these processes as a management technique in maintaining different planktonic systems. Relation ships between primary and secondary trophic levels are not always easy to inter pret, since the growth of primary carnivore populations can often determine the survival of zooplankton populations. Nevertheless, the development of co horts of herbivorous zooplankton has been followed in several enclosures, yield ing useful information on development times and production rates. In enclosed systems it is thus possible to directly relate tertiary level production to inorganic nutrient input, and to calculate production rates and exchange efficiencies at several trophic levels.
Author: United States. Federal Coordinator for Marine Environmental Prediction
Publisher:
ISBN:
Category : Marine pollution
Languages : en
Pages : 56
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Book Description
Author: United States. Environmental Data Service
Publisher:
ISBN:
Category : Marine resources
Languages : en
Pages : 444
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Author:
Publisher:
ISBN:
Category : Toxicology
Languages : en
Pages : 624
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Book Description
Author: C.W. Jr. Hart
Publisher: Elsevier
ISBN: 0323151078
Category : Science
Languages : en
Pages : 423
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Book Description
Pollution Ecology of Estuarine Invertebrates, as its companion volume ""Pollution Ecology of Freshwater Invertebrates"", aims to present the ecology of estuarine invertebrates and highlight some systematic interpretations. This book also discusses the knowledge about these invertebrates. It is a compilation of existing data at the time of writing, an attempt to introduce ideas and information, and a result of synthesis of systematic interpretations. This book consists of 12 chapters, each with a specific invertebrate as subject area. The invertebrates encompassed in this book are thread and bristle worms, Bryozoa, ostracods, copepods, crabs, shrimps, larval decapods, Cyathura, isopods (other than Cyathura), amphipods, clams, and snails. Each chapter gives a thorough discussion of the featured invertebrate according to some of the organism’s aspects, such as habitat, systematic, zoogeography, pollution ecology, life cycle, physiology, population, taxonomy, and distribution. This book is a valuable source for students, teachers, scientists, or researchers interested in estuarine invertebrates and pollution and study biology, environmental science, zoology, or even marine science.
Author: National Science Foundation (U.S.). Division of Ocean Sciences
Publisher:
ISBN:
Category : International Decade of Ocean Exploration, 1970-1980
Languages : en
Pages : 52
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Book Description
Author: Simon A. Levin
Publisher: Springer Science & Business Media
ISBN: 1461235200
Category : Science
Languages : en
Pages : 550
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Book Description
Ecotoxicology is the science that seeks to predict the impacts of chemi cals upon ecosystems. This involves describing and predicting ecological changes ensuing from a variety of human activities that involve release of xenobiotic and other chemicals to the environment. A fundamental principle of ecotoxicology is embodied in the notion of change. Ecosystems themselves are constantly changing due to natural processes, and it is a challenge to distinguish the effects of anthropogenic activities against this background of fluctuations in the natural world. With the frustratingly large, diverse, and ever-emerging sphere of envi ronmental problems that ecotoxicology must address, the approaches to individual problems also must vary. In part, as a consequence, there is no established protocol for application of the science to environmental prob lem-solving. The conceptual and methodological bases for ecotoxicology are, how ever, in their infancy, and thus still growing with new experiences. In deed, the only robust generalization for research on different ecosystems and different chemical stresses seems to be a recognition of the necessity of an ecosystem perspective as focus for assessment. This ecosystem basis for ecotoxicology was the major theme of a previous pUblication by the Ecosystems Research Center at Cornell University, a special issue of Environmental Management (Levin et al. 1984). With that effort, we also recognized an additional necessity: there should be a continued develop ment of methods and expanded recognition of issues for ecotoxicology and for the associated endeavor of environmental management.
