The Livid Fan Scallop, Scaeochlamys livida
One of our members recently reported, “Recently I was advised I had posted some “Livid Fan Scallops” (Scaeochlamys livida) on iNaturalist, an invasive species that is currently being monitored. Spreading…
Habitat loss, habitat degradation and the Port River dolphins
I see similarities between the recent and seemingly quite rapidly escalating decline in Port River dolphin numbers and the continuing extinction trend in the bushland birds of Adelaide and the…
The Occurrence of the Venus shell, Tapes literatus, in the Port River
Last year, I found a Venus shell, Tapes literatus at the Ships’ Graveyard in the North Arm of the Port River. I reported the discovery in my article entitled Further…
The Japanese Goby is similar to Krefft’s Goby
I have been helping Catherine McMahon from Port River Shellfish Restoration Project to monitor oysters being kept in baskets in the Port River system. One interesting aspect of the monitoring…
The comb jellies Bolinopsis and Mnemiopsis
I took this ‘one off’ shot of a clear jelly during my dive at Moonta Bay jetty in June 2017. While the photograph is enigmatic, my observations were sufficient for…
Further discoveries at the Ship’s Graveyard
In addition to my recent discovery of an Oyster Blenny at the Ship’s Graveyard in the North Arm of the Port River, I also found this bivalve mollusc shell there.…
The Oyster Blenny, Omobranchus anolius
When I recently snorkelled at the Ship’s Graveyard in the North Arm of the Port River, I saw lots of blennies disappearing into holes on the river bed. They were…
Invasive marine species in South Australia
Since first learning about marine biosecurity and the translocation of marine species from one region’s waters to another via commercial shipping and recreational boating, I’ve come to recognise a few…
Nocturnal observations around Glenelg marina and jetty
While this weekend’s scorching hot temperatures kept my wife and I out of the sun for the most part, we couldn’t resist making a late night beach walk down at…
Whyalla Underwater Shootout a resounding success
The inaugural Whyalla Underwater Shootout held over the long weekend from June 7-9th was a resounding success, according to its organisers. The competition, which was hosted by the Marine Life…