1. The aquatic environment/ K. Radway Allen -- 2. Australian inland waters/ W. D. Williams -- 3. Australian estuaries/ I. A. E. Bayly -- 4. Oceanography and its role in the management of aquatic ecosystems/ D. J. Rochford -- 5. Managing molluscan production systems/ M. Sanders and K. Beinessen -- 6. Managing a crustacean production system: Penaeid prawns/ P. C. Young -- 7. Managing waterfowl in Australia/ L. W. Braithwaite --8. Australia's mangrove enclaves: a coastal resource/ A. Malcolm Gill -- 9. Managing marine natinal parks: conflicts in resource exploitation/ Gerald Goeden -- 10. Managing aquatic pollution/ Alastair Gilmour -- 11. The social functions of aquatic ecosystems/ K. D. Cocks