Introduced and invasive marine species in Australia and the Indo-West Pacific, particularly Singapore and Thailand. Checklist of the marine molluscs of Thailand. Imposex caused by tributyltin. Coral reef biogeography.
Molluscan Research (former editor, 19 years), Western Australian Marine Biological Workshop Series (former principal editor, 20 years), Records of the Western Australian Museum (former editor, 4 years), Associate Editor, Raffles Bulletin of Zoology (current), Associate Editor, Management of Biological Invasions (current)
Molluscan Research, Management of Biological Invasions, The Veliger,
Australian Marine Sciences Association (past President), Unitas Malacologica, The World Scientific Society for Molluscs (Past president, life member), Malacological Society of Australasia (Past president, life member). INVASIVESNET
Expert networks and working groups
Professional social networks