Return to pouring seawater into the trough while Macquarie Uni researcher Nathan Bass tag’s port jackson shark – Jervis Bay Sept:Aug 2014© Danielle Ryan pouring seawater into the trough while Macquarie Uni researcher Nathan Bass tag’s port jackson shark – Jervis Bay Sept:Aug 2014© Danielle Ryan Dimensions: 5616 × 3744 Taken: August 31, 2014 Aperture 3.2 Camera Canon EOS 5D Mark II Focal Length 45mm Shutter Speed 1/1000 ISO 100