Teagan Marzullo
PhD Alumni
Contact details:

Ray movements, habitat use and estuary fidelity across the New South Wales coast

Currently I am investigating the elusive ecology of stingrays and stingarees found within estuaries of New South Wales. Contrary to what you have been told, rays are harder to catch than you think- at least the decent sized ones! If you are inclined to disagree, then I challenge you to demonstrate your awe-inspiring angling ability. A large part of my research involves implanting acoustic transmitters in rays, from Georges River, Shoalhaven River and Clyde River, to track their movements, habitat use and activity patterns in response to a suite of environmental factors including temperature, salinity, bathymetry and diel cycles. Further, I am validating the use of stingray barbs as a potential tool to determine stock structure and residency within and among species. Topping it off, I am also investigating stingray biomechanics and respirometry to be applied to free-living stingarees in the Shoalhaven River using novel accelerometry tags. In conclusion- stingrays are as awesome as the people who study them (this inc. my supervisors).


Supervisor -

Professor Iain Suthers

Co-Supervisors -

Dr Nick Payne

Dr Matthew Taylor (NSW-DPI)

Dr Nathan Knott (NSW-MPA)



Marzullo, T. A., Wueringer, B. E., Squire Jnr, L., and Collin, S. P. (2011). Description of the mechanoreceptive lateral line and electroreceptive ampullary systems in the freshwater whipray, Himantura dalyensis. Marine and Freshwater Research 62, 771–779. doi:10.1071/MF10156