Rich Pillans/CSIRO Around the world, ocean warming is causing fish to move polewards in search of cooler water. But what if you’re a tiny prawn, barramundi or rare sawfish in a northern Australian gulf and your exit southwards is blocked by land? To date, there’s been a global gap in understanding how shallow tropical gulfs and bays are responding to climate change. These marine environments are vital for nature, fisheries and coastal communities. However, their conditions are becoming more ex