In August 2024, Scientists on a return journey to Beagle Marine Park in central Bass Strait have made an extraordinary discovery in the deep (65m+) mesophotic reefs of the Great Southern Reef.
Thousands of sleepy Port Jackson sharks were found blanketing the seafloor, captured by a remotely operated vehicle (ROV) deployed from the SARDI research vessel MRV Ngerin. This two-week survey, led by the University of Tasmania's IMAS, revisits the area to observe changes since their first survey six years ago.
In an interesting twist, researchers noted that the gathering appeared to be exclusively female. This raises intriguing questions about their behaviour and why this location is so significant for them. Could they be preparing for their journey north to lay eggs? The mystery deepens, but one thing is clear—this area is vital for their lifecycle.
This incredible find showcases the importance of continued research and exploration in our marine parks.
Image and Footage below by NESP-IMAS
This research voyage on the South Australian Research and Development Institute (SARDI) research vessel, the MRV Ngerin, was led by the University of Tasmania Institute for Marine and Antarctic Studies. It was supported by the Australian Government under the National Environmental Science Program and a grant of sea time onboard the Southern Coastal Research Vessel Fleet, funded by the National Collaborative Research Infrastructure Strategy. Learn more.