Ch. 1. Toxicity tests for sediment quality assessments / D. S. Ireland and K. T. Ho -- Ch. 2. Bioassays and tiered approaches for monitoring surface water quality and effluents / M. Tonkes, P. J. den Besten and D. Leverett -- Ch. 3. Biomarkers in environmental assessment / R. van der Oost, C. Porte-Visa and N. W. van den Brink -- Ch. 4. Molecular methods for gene expression analysis : ecotoxicological applications / A. Lange, M. Maras and W. M. De Coen -- Ch. 5. Bioassays and biosensors : capturing biology in a nutshell / B. van der Burg and A. Brouwer -- Ch. 6. Satellite remote sensing in marine ecosystem assessments / T. R. Pritchard and K. Koop -- Ch. 7. Risk perception and public communication of aquatic ecosystem assessment information / M. R. Reiss and L. Pelstring -- Ch. 8. Ecotoxicological testing of marine and freshwater ecosystems : synthesis and recommendations / P. J. den Besten and M. Munawar