chapter 1 Introduction -- chapter 2 Sedimentary Processes on Estuarine Mudflats: Examples of the Seine and Authie Estuaries -- chapter 3 Quantification of Contaminants -- chapter 4 Biomarkers Based upon Biochemical Responses -- chapter 5 Biogeochemistry of Metals in Sediments: Development of Microscale Analytical Tools and Use of Indicators of Biological Activities -- chapter 6 Organic Contaminants in Coastal and Estuarine Food Webs -- chapter 7 Tolerance in Organisms Chronically Exposed to Estuarine Pollution -- chapter 8 Linking Energy Metabolism, Reproduction, Abundance, and Structure of Nereis diversicolor Populations -- chapter 9 Historical Records of the Nereis diversicolor Population in the Seine Estuary -- chapter 10 Ecological Status and Health of the Planktonic Copepod Eurytemora affinis in the Seine Estuary -- chapter 11 From Pollution to Altered Physiological Performance: The Case of Flatfish in the Seine Estuary -- chapter 12 Diatoms: Modern Diatom Distribution in the Seine and Authie Estuaries -- chapter 13 Foraminifera -- chapter 14 Patterns of Abundance, Diversity, and Genus Assemblage Structure of Meiofaunal Nematodes in the Seine (Pont de Normandie) and Authie (Authie Port) Estuaries -- chapter 15 Dynamic Diagenetic Modelling and Impacts of Biota -- chapter 16 Conclusions.