By R. S. K. Barnes
This validated textbook maintains to supply a complete and stimulating advent to marine ecological techniques and methods. in keeping with a wealth of foreign educating services, An creation to Marine Ecology is written to be the root for a complete undergraduate path in marine biology or ecology. It covers the trophic, environmental and aggressive interactions of marine organisms, and the results of those at the productiveness, dynamics and constitution of marine platforms. The power of the publication lies in its dialogue of middle subject matters which is still on the center of the vast majority of classes within the topic, regardless of an expanding emphasis on extra utilized features. The authors hold the culture of readability and conciseness set by means of prior variants, and the textual content is broadly illustrated with color plates, photos and diagrams. Examples are drawn from around the world. during this variation, the clinical content material of the textual content has been totally revised and up to date. An emphasis has been put on human affects, and entirely new chapters were extra on fisheries, marine ecosystems, and human interference and conservation. thoroughly revised and up-to-date with a twofold raise within the variety of illustrations. Adopts a extra utilized procedure based on present educating. New chapters on fisheries, the marine surroundings, conservation and pollutants. in accordance with a confirmed and profitable path constitution.
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Extra resources for An Introduction to Marine Ecology
Reduced sulphur compounds issuing from submarine volcanic ventsfumarolesare used as energy sources by some sulphur bacteria in their fixation of dissolved carbon dioxide. Such chemosynthetic bacteria are also symbiotic in various gutless nematodes, oligochaetes, pogonophorans and bivalve molluscs associated with sulphur-rich marine microhabitats, and provide their only known source of food materials (some 50% of the carbon fixed chemosynthetically passing to the host). Equivalent chemosynthesis-dependent communities occur around seeps of unheated water and of petroleum.
Title. 7dc21 98-38820 CIP DISTRIBUTORS Marston Book Services Ltd PO Box 269 Abingdon, Oxon OX14 4YN (Orders: Tel: 01235 465500 Fax: 01235 465555) USA Blackwell Science, Inc. com Page v Contents Preface vii 1 The Nature and Global Distribution of Marine Organisms, Habitats and Productivity 1 2 The Planktonic System of Surface Waters 30 3 The Benthos of Continental Shelf and Littoral Sediments 54 4 Salt-Marshes, Mangrove-Swamps and Sea-Grass Meadows 77 5 Rocky Shores and Kelp Forests 85 6 Coral Reefs 117 7 Pelagic and Benthic Systems of the Deep Sea 142 8 Fish and Other Nekton 150 9 Ecology of Life Histories 180 10 Speciation and Biogeography 207 11 The Marine Ecosystem as a Functional Whole 222 12 Human Interference and Conservation 238 References 257 Index 270 Page vii Preface The first two editions of this book were aimed at students with some knowledge of ecology who were about to venture into the mare incognitum for the first time.
Photic zone do we have a reasonable biological understanding. Thus far we have neglected the properties of the water itself and to these we now turn. The water forming the world ocean is, of course, salty. 6% of the total cations). 2, although clearly surface waters will be diluted in areas of freshwater discharge and concentrated in regions with a marked excess of evaporation over precipitationto over 36 in the tropical open oceans and to even higher values in semi-enclosed areas such as the Red Sea.