Divers in Sydney and the NSW North Coast are being asked to contribute their old and new diving photos, videos, observations and knowledge to a new UNSW Sydney research project.
Warming waters are leading to the ‘tropicalisation’ of temperate reefs: gone are the kelp forests, and local fish populations are responding unexpectedly.
Overseas travel might be off the table this summer, but why not travel under it?
A global team of biologists has used squid treats to track predator activity underwater, discovering temperature changes communities more than appetites.
Young environmental scientist Tashya Miranda is applying her marine biology skills and knowledge to improving Sydney's water.
Everyone knows the Great Barrier Reef is in peril. But a continent away, Western Australia's Shark Bay is also threatened by marine heatwaves that could alter this World Heritage ecosystem forever.
Human-made debris such as plastic have vastly increased the numbers of marine species crossing the oceans, write Emma Johnston and Jim Carlton.