|Map of Fitzroy River (blue line) in northern Western Australia. |
Map source: Google Earth
|The Camballin Barrage, a small weir on the Fitzroy River used for irrigation of|
cattle and crops. Photo: Jeff Whitty
We also tagged sawfish with small acoustic tags. These tags transmit a unique acoustic signal that can be detected and logged by receivers, which we installed throughout the river. Data from downloaded receivers can tell us when a particular sawfish was near a receiver, and what water temperature and depth the sawfish was in. This data will help us to understand sawfish movements and how they are impacted by dams.
After a month in the sweltering heat our food supplies, energy levels and time ran out. As we left the sawfish and the river behind, our team agreed that in spite of a few minor setbacks that our trip was a success. We were able to tag a few new sawfish and collected some important recapture data. This will help us to better understand these threatened sawfish and inevitably help to advance conservation efforts for these fishes.
|Pictured is the October 2014 Team Sawfish field crew. Missing are Dr David |
Morgan and James Keleher. Photo: Ruth Leeney
To report a sawfish captured in Western Australia or for more information about Team Sawfish please visit www.freshwaterfishgroup.com.
If you encounter a tagged or untagged sawfish outside of Western Australia please visit the Sawfish Consveration Society at www.sawfishconservationsociety.org, or the International Sawfish Encounter Database at www.flmnh.ufl.edu/fish/sharks/sawfish/sawfishdatabase.html.
This research was funded by Chevron Australia and was made possible by the Western Australia Marine Science Institute.