Len has over 20 years experience as a research scientist on seagrass ecology, assessment and fisheries habitats. This includes experience within Australia and overseas in seagrass research, resource mapping/ assessment and biodiversity. He has provided information on seagrass communities that has been vital in management of seagrass resources of the Great Barrier Reef and also at the state, national and international levels. He has also advised on fisheries and coastal resource-use issues for managers, fishing organisations, conservation and community groups. Len is the Principal Researcher and Program Leader of Seagrass-Watch, a non-profit seagrass research organisation that conducts research is 17 countries. Len is also the Secretary of the World Seagrass Association.