I am a marine ecologist and fisheries biologist at Macquarie University, where I lead the Marine Ecology Group (MEG). I have over 30 years of experience assessing the healthy functioning of our oceans and understanding the human-induced challenges they face. My research group and I have a particular focus on threatened species and biodiversity, and on optimising recreational and commercial fishing practices to maximise the sustainability of species and maintain resilient systems. We have a particular focus on sharks and rays, and on sea cucumbers. I also have experience in aquaculture of a diversity of marine species, from barramundi to sea urchins.