Meet the principle investigators for the Sydney Harbour Observatory.

We also take on interns for regular placements who help with valuable data collection, public outreach and various research tasks. Contact us HERE if you are interested in an exciting marine science internship with the Sydney Harbour Observatory.


Ian S.F. Jones [Director]

BE[UNSW], PhD [Waterloo], CPEng., FIEAust

Ian has extensive international experience in engineering and oceanography; founding Director EO&S; Past Pres. AMOS, PastChair Nat. Committee Aust. Academy of Sciences, SCOR Executive Committee. Ian is an Adjunct Professor of Engineering [University of Sydney] and Adjunct Senior Scientist [Columbia NY]. He is also the co-author of three books, 86 papers and 40 technical reports.


Daniel P. Harrison [Director]

BE, M Phil [University of Sydney]

Daniel is a research associate of the Ocean Technology Group, University of Sydney, who specialises in modelling and field work and is author of a number of papers on the Marine environment. Daniel spent two years as a research scientist at the University of Southern California, before returning to Australia to work on projects such as the Sydey harbour Observatory. See Daniel's TEDx talk, 'Why do I love Fish' here ...


Edwina Tanner [Director]

MSc [Syd]

Edwina is the Project Manager of the World Harbour Project at the Sydney Institute of Marine Science ( and a researcher and coordinator of the Marine Studies Institute at the University of Sydney ( Her research focus is on the cycling of carbon and oxygen in estuaries. The methods of individual estuaries in processing terrestrial carbon before it enters the marine environment is still largely unknown. My study of the Sydney Harbour Estuary has illuminated how carbon is processed in this large temperate drowned river valley system under various environmental scenarios. I am passionate about this study because of the changes you see as you go down the river starting with a high carbon dioxide low oxygen environment at the fresh water source decreasing as you head downstream where the ocean water interacts, the phytoplankton do their bit and the fish come and feed. This interplay of ocean and river hydrodynamics and of the tiny creatures and the chemistry balance in the estuary all contribute to the much bigger story of climate change.


Sarah smaje [marine science communicator]

BSc [Melb]

Always having had a passion for both marine science and the creative arts, Sarah is dedicated to combining the two disciplines in order to effectively communicate marine science to the public in a fun, modern and engaging way. With a particular interest in video production and photography, Sarah is also adept at engaging the public through a variety of multi-media platforms.

In collaboration with: