Ecology of marine sediments : from science to management / John S. Gray, Michael Elliott.

Includes bibliographical references (pages 194-213) and index.

Print version record.

A tribute to John Stuart Gray (1941-2007) -- Introduction -- 1 Sampling sediments -- 1.1 Sampling design -- 1.2 Sampling the fauna -- 2 The sediment and related environmental factors -- 2.1 Grain size and related variables -- 2.2 Other important environmental variables -- 2.3 The fauna and environmental variables -- 3 Describing assemblages of sediment-living organisms -- 3.1 Abundance models -- 3.2 Species occurrences -- 3.3 Size and biomass spectra -- 3.4 Describing faunal patterns -- 3.5 Describing assemblages -- 4 Diversity -- 4.1 Measuring diversity -- 4.2 Scale and biodiversity -- 4.3 Turnover (beta) diversity -- 4.4 Patterns of diversity in benthic assemblages -- 4.5 Latitudinal and longitudinal gradients of diversity -- 4.6 The link between species richness and system function -- 5 Functional diversity of benthic assemblages.

5.1 Ecological functioning -- 5.2 Secondary production in benthic macrofauna -- 5.3 Production estimates in meiofauna -- 5.4 Energy budgets for single species -- 5.5 Elemental budgets -- 5.6 Production: biomass ratios -- 5.7 Community metabolism -- 6 Spatial variations in sediment systems -- 6.1 The importance of scale -- 6.2 Measuring scale effects on sediment systems -- 6.3 Biological interactions causing disturbances -- 6.4 The settlement process -- 6.5 Causes of change in dominance patterns -- 6.6 Generalizing effects of disturbance -- 7 Temporal variations in benthic assemblages -- 7.1 Seasonal patterns -- 72 Long-term patterns -- 7.3 The stability of benthic communities -- 8 Human impacts on soft-sediment systems-trawling and fisheries -- 8.1 Ecological effects of trawling -- 8.2 Common types of trawls and dredges -- 8.3 Effects of gear on different sediment types -- 8.4 General effects of trawling on benthic systems -- 9 Human impacts on soft-sediment systems-pollution.

9.1 Effects of increased organic matter on numbers and biomass -- 9.2 Effects of organic enrichment on diversity -- 9.3 Effects of discharges from the oil industry -- 9.4 Effects of heavy metals and xenobiotic chemicals on benthic fauna -- 9.5 Adaptive strategies to pollution/disturbance -- 9.6 Sediment quality standards -- 9.7 Integrative benthic assessments -- 9.8 Recovery of the benthic community after stress -- 10 The soft-sediment benthos in the ecosystem -- 10.1 Food webs, and feeding and functional groups -- 10.2 Ecosystem models -- 10.3 Network analysis: cycling index and average path length -- 10.4 The European Regional Seas Ecosystem Model (ERSEM) -- 11 The benthos in the management of marine sediments -- 11.1 The use and analysis of benthic data -- 11.2 The DPSIR approach-indicators and objectives -- 11.3 Benthic monitoring -- 11.4 The role of the benthos in a priori assessments -- 11.5 The role of benthos in quality assessments -- 11.6 Predictive models and marine benthic management -- 11.7 Benthic analytical quality control and quality assurance (AQC/QA) and data reliability -- Concluding remarks.

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Marine sediments are the second largest habitat on earth and yet are poorly understood. This book gives a broad coverage of the central topics in the ecology of soft sediments. - ;Marine sediments provide the largest habitat on planet earth, yet knowledge of the structure and function of their flora and fauna continues to be poorly described in current textbooks. This concise, readable introduction to benthic ecology builds upon the strengths of the previous edition but has been thoroughly revised throughout to incorporate the new technologies and methods that have allowed a rapid and ongoing.

English.

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