May 27

May 27, 2016

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Tumby Bay Author, Eric Kotz

Tumby Bay author, Eric Kotz self-published his second book in February 2016. It is titled “The Jawsome Coast”, sub-titled “A Social History of Australia’s Southern Coastline and the Effect on it of the Great White Shark, its Conservation ‘Industry’ and Shark Tourism”. We assisted Eric in presenting his new book at a meeting of the Underwater Explorer’s Club of SA on 6th April. I attended that meeting to hear Eric speak about the book and I was able to purchase…

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May 11

May 11, 2016

May 11

May 11, 2016

May 11

May 11, 2016

May 11

May 11, 2016

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ANZAC DAY DIVE AT CARRICKALINGA

When David Muirhead suggested that we dive at Carrickalinga for our Anzac Day dive (25th April), I happily agreed, since I hadn’t dived there recently, or very much at all for that matter. It seems that no one else was able to join us that day, so it was just the two of us that met at the car park there on the seafront. We simply had to gear up in the car park and walk down a ramp onto…

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Mar 30

March 30, 2016

Mar 2

March 2, 2016

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A discovery by researchers from Flinders University enables the removal of mercury from water & soil

ABC TV’s “Catalyst” program recently discussed mercury levels in fish. They reported that fish are a healthy source of protein and omega-3 fatty acids, but high mercury levels in fish can be a problem. At very high concentrations, mercury has a profound toxic effect on human beings. It is hoped that a new invention can help with the mercury problem. One of the most toxic forms of mercury is methylmercury. It consists of one mercury atom bonded to one carbon…

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Feb 29

February 29, 2016

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Sea Snake Sightings or Worm Eels?

Wendy White, the Coordinator for the Normanville Natural Resource Centre, recently sent the following email enquiry to David Muirhead regarding a suspected sea snake sighting (try saying that last bit quickly): – “Hi David, a local resident came into the centre today asking about a ‘snake’ that she found on the beach at Normanville South. She found it being washed up, it was about 30 cm long and a bit thicker than her finger with a yellow head and a…

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Feb 11

February 11, 2016

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More photos of a male Senator Fish rubbing its body in the substrate

Since writing my article titled Unusual Behaviour by Senator Fish, Pictilabrus laticlavius, I have observed similar Senator Fish behaviour at Rapid Bay jetty. In March 2015, I had witnessed some unusual behaviour by Senator Fish at Rapid Bay jetty. The unusual behaviour that I witnessed by them was that many of them were often rubbing their bodies in the substrate. (There seemed to be more male Senator Fish than usual swimming around. They weren’t swimming in schools or large groups,…

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Feb 11

February 11, 2016

Mysids near shaded ledge wall Second Valley MLSSA dive(Sea Life camera)6-2-017

Mysid Photos from Second Valley Dive

During our recent dive at Second Valley, David Muirhead took a couple of photos of what he thought were late larval planktonic phase southern rock lobsters. Below is a cropped version (by David) of one of his photos: – ?“Juv. Rock Lobster, ready to settle out of water column, Second Valley 6-2-16”? (with bullseye in background) He thought that they had swum inshore to get ready to settle on a rock reef (such as at Second Valley). He sent one…

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