Long-term monitoring of ecological conditions in Gray's Reef National Marine Sanctuary : comparison of soft-bottom benthic assemblages and contaminant levels in sediments and biota in spring 2000 and 2005

iii 1.0 Introduction 1 2.0 Methods 2 3.0 Results 5 3.1 Spring 2005 Sampling 5 3.2 Comparison with results of the spring 2000 survey 18 4.0 Conclusions 23 5.0 Acknowledgements 25 6.0 References 26 Appendix 30