Friends of Gulf St Vincent Inc. (FoGSV) is a community group that is concerned with the protection and conservation of this wonderful, unique body of water and its biodiversity. We organise events around issues related to clean beaches, clean water, and healthy ecosystems, such as seagrass meadows, mangrove forests, benthic and pelagic communities, and beach systems, which are critical for our enjoyment and appreciation of the gulf and its environs.
Topics will include: The Impact of the Harmful Algal Bloom and Signs of Recovery (with underwater photos); The Specific Impact of the Bloom on The Pinna (Razorfish); The New Secchi Disk Monitoring Project.
Friends of Gulf St Vincent believe razorfish (Pinna dolabrata) may now be functionally extinct in Gulf St Vincent due to the recent harmful algal bloom. A species is functionally extinct when its population falls so low that it can no longer fulfil its ecological role or sustain a viable breeding population.
Surveys of intertidal populations in eastern Gulf St Vincent and reliable anecdotal reports from citizen scientists, aquaculturalists and fishers along the western shores, indicate almost complete decimation of intertidal razorfish beds. Any remaining razorfish beds are likely to be found only in the deeper, subtidal regions of the gulf. We need your help in confirming the health of these razorfish populations.
Friends of Gulf St Vincent are offering two $500 rewards (eastern GSV and western GSV) for the location of healthy viable razorfish beds within Gulf St Vincent waters which can be monitored for recovery. We are defining these as:
3-5 razorfish per square metre
A bed in less than 10m water depth, roughly 10m by 10m in size
Over 60% of the razorfish are alive.
Terms and Conditions
Both rewards are available until end April 2027.
Photographic evidence, site description and precise GPS co-ordinates are required for entry.
One reward for each region (Eastern and Western Gulf St Vincent) will be paid after the bed has been confirmed.
Friends of Gulf St Vincent will decide if the bed qualifies for the reward. You must be willing to assist with confirmation requests which may require revisiting the site.
The first person to report a qualifying bed wins the reward for that bed.
There is no entry fee.
The total reward money is capped at $1000
Friends of Gulf St Vincent accepts no responsibility for your actions on or under the water, please take care out there and act responsibly.
Send your photographic evidence of the beds and GPS position to friendsofgulfstvincent@gmail.com
Identification and locations of largely deceased razorfish beds, although not valid for a reward, would also greatly assist our survey and research efforts, as would information about beds with ANY live razorfish in them - add an estimate of those you found alive.
If you know of, or suspect, razorfish beds but don’t dive and don’t have an underwater camera or drone, we recommend teaming up with divers who have cameras to claim the reward. Divers can also more easily confirm whether the razorfish are still alive.
Updates on successful reward winners will be posted on the Friends of Gulf St Vincent Facebook page.
FOGSV is seeking interested participants to join a small pilot group to develop a project to test water turbidity (clarity), temperature and salinity in SA waters. The project hopes to build an ongoing network that monitors our marine waters.
You will need to be a member of FOGSV (currently $10 or $5 conc) to cover your insurance, have a smart phone, regular access to a nearby beach/gulf waters and enthusiasm.
The Friends of Gulf of St Vincent held their Annual General Meeting 2025 on Wednesday, 3 December 2025 at the Port Environment Centre, Port Adelaide.
Adele Mastroyannis, current Chair, welcomed members to a short AGM. This included discussion about the future of the group and it was decided that a committee could be formed and would consider the algal bloom as an opportunity to become involved with citizen science studying this. A committee was duly elected with some positions to be decided later:
Chair – Peter James Moriarty
Treasurer – Kirsty Darlaston
General Members (in no particular order) – Robyn Ravalico, Michael Armour, Geoff Wood, Kylie Ritter, Lynda Yates
After the AGM, Samantha Sea gave a talk on using a microscope to analyse seawater samples and identify phytoplankton including the Karenia bacteria that, with others, have triggered the algal bloom in South Australia. She liaises with other members of the citizen science group, Phytoplankton of South Australia, to build up knowledge about phytoplankton, especially those involved with the 2025 algal bloom.