1. Introduction. 2. Seagrass Taxonomy, Structure and Development (J. Kuo, A.J. McComb). 3. Pollination and Reproductive Biology of Seagrasses (C.A. McConchie, R.B. Knox). 4. Evolution and Biogeography of Seagrasses (A.W.D. Larkum, C. den Hartog). 5. Regional Studies - Western Australian Seagrass (H. Kirkman, D.I. Walker). 6. Regional Studies - Seagrass in Shark Bay, the Foundations of an Ecosystem (D.I. Walker). 7. Regional Studies - Seagrasses of South Australia, Western Victoria and Bass Strait (S.A. Shepherd, E.L. Robertson). 8. Regional Studies - Seagrasses of South Eastern Australia (R.J. West et al.). 9. Regional Studies - Seagrasses of North-Eastern Australia (R.G. Coles et al.). 10. Regional Studies - Seagrasses of Tropical Australia (I.R. Poiner et al.). 11. Seagrass Dynamics (S.M. Clarke, H. Kirkman). 12. Decline of Seagrasses (S.A. Shepherd et al.). 13. Trophodynamics and Nutritional Ecology of Seagrass Communities (D.W. Klumpp et al.). 14. Seagrass Epiphytes (M.A. Borowitzka, R.C. Lethbridge). 15. Interactions of Seagrasses with Sediment and Water (D.J.W. Moriarty, P.I. Boon). 16. Faunal Assemblages of Seagrass Beds (R.K. Howard et al.). 17. Ecology of Fish Assemblages and Fisheries Associated with Seagrasses (J.D. Bell, D.A. Pollard). 18. Dugongs and Turtles; Grazers in the Seagrass System (J. Lanyon et al.). 19. Productivity and Nutrient Limitation (K. Hillman et al.). 20. Gaseous Movement in Seagrasses (A.W.D. Larkum et al.). 21. Solute and Water Relations of Seagrasses (S.D. Tyerman). 22. Carbon Metabolism (K.M. Abel, E.A. Drew). 23. The Accumulation and Effects of Metals in Seagrass Habitats (T.J. Ward). 24. Concluding Remarks.