Jan 17

January 17, 2017

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Reef Watch turns 20 – monitoring dives planned

Reef Watch is celebrating its 20th anniversary this year. They are inviting divers to take part in monitoring dives: – “Never dived with Reef Watch before and unsure about what we do? Come along for a few dives and learn how to ID our wonderful marine animals and how you can help us with simple diving surveys. Reef Watch dives and training is free (but sorry, we can’t teach you how to dive). Here are some dates of the next…

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Jan 11

January 11, 2017

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THE FIRST RECORDED DIVING FATALITY IN SOUTH AUSTRALIAN WATERS

According to “A Listing and Analysis of Fatal Diving Accidents in South Australia” by Peter Horne, the first recorded diving fatality in South Australian waters occurred on 28th December 1951. The incident was recently recounted in The Advertiser on 26th December 2016. A scan of the Boomer article in The Advertiser 26/12/16 The “Boomer” section of The Advertiser on Boxing Day featured a part of a report (said to be from 3rd January 1952) which stated that 33-year old wharf…

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Dec 14

December 14, 2016

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Acorn worm’s ‘Wolverine’ style healing powers

According to a recent report in the Sunday Mail (4/12/16), acorn worms can apparently regrow any of their body parts from nothing. The report was written by Harry Pettit from Washington, USA. He says that “researchers hope that unravelling the worm’s DNA could lead the team to human limb regeneration”. The researchers involved are from the University of Washington and they are trying to open full limb regeneration in humans. The acorn worm apparently has a genetic makeup like that…

Posted in Marine invertebrates, Research, Worms | By

Dec 13

December 13, 2016

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The Upside-down Jellyfish, Cassiopea ndrosia

The last thing that I expected to be doing on the first days of my recent retirement from work was studying jellyfish, but that’s exactly what happened! That’s just the way that things go sometimes. It all started over the Queen’s Birthday holiday long weekend last June though, as far as I can determine. That was the weekend that I decided to go kayaking alone at Garden Island. I think that I noticed an upside-down jellyfish in the shallow water…

Posted in Cnidaria, Marine invertebrates | By

Dec 8

December 8, 2016

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The unveiling of Reg Sprigg’s dive chamber at the Patawalonga, Glenelg North, SA

A long list of lucky events led to me attending the recent unveiling of Reg Sprigg’s dive chamber at Glenelg North (with my wife Noeleen). The dive chamber has been positioned adjacent to the Buffalo replica on the banks of the Patawalonga. Our Patron, Scoresby Shepherd had suggested that I try to get approval to attend the official unveiling. An email request to a namesake sealed the deal for Noeleen & I to attend the event. A good crowd had…

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Nov 27

November 27, 2016

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The Predatory Behaviour of an Eleven-armed Star Fish

During our recent dive at Rapid Bay jetties, I recorded a large eleven-armed star fish attacking an abalone. I have to admit that I set the whole thing up though. I was swimming along the side of the new jetty’s piles when I came across this abalone at the base of a jetty pile. It was attached to a small plate-like rock: – On the other side of the jetty pile was this eleven-armed star fish: – I evilly-decided to…

Posted in Marine invertebrates, Molluscs, Seastars | By

Nov 27

November 27, 2016

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Our Recent Dive at Rapid Bay jetty

Just 6 days after our kayak & caving trip at Rapid Bay we returned to Rapid Bay on 26th November for a dive at the jetties there. Participants this time were Steve Reynolds, Alexius Sutandio, David Muirhead, Allan Horsfall & Anita Futterer. We all met at the jetty car park in the morning, but our dive entries were somewhat staggered. We managed to break-up in to three separate teams for our dives. Meanwhile, Lisa McLean was diving at Second Valley….

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Nov 27

November 27, 2016

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Our Rapid Bay kayak trip

I had to wait almost 12 months to return to the caves between Rapid Bay & Second Valley. I had visited the area some three times during 2015 (This does not include a dive that I did in the area during 2016). I had to anxiously wait for several months to participate in the FUSSI trip to the area in November 2016. Meanwhile, I had many concerns regarding what I could use for the kayaking part of the trip. This…

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Oct 26

October 26, 2016

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Bernard C. Cotton – former Curator of Molluscs at the SA Museum

Bernard C. Cotton was a Curator of Molluscs at the SA Museum in North Terrace, Adelaide, South Australia. According to “Australia’s Spectacular Cowries” by Barry Wilson and Peter Clarkson (mlssa 1069), Bernard “wrote many scientific papers and semi-technical articles on southern Australian molluscs.” According to “Kingdom of the Seashell” by R.Tucker Abbott, Bernard wrote three volumes of a South Australian identification guide titled “South Australian Mollusca” from 1940-1961. According to “Fishes and Shells of the Pacific World” by John T…

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Oct 9

October 9, 2016

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The Exposed Remains of the Original Port Willunga jetty & the Wreck of the Ida

The Star of Greece Café is close to a shipwreck, and it’s not the wreck of the Star of Greece! The wreck of the Ida is down on the beach below the café. The wreck isn’t always visible as she is usually buried in the sand on the beach. She is said to have been “driven ashore about 100 yards south of the jetty”. Not the old jetty mind you. She is located mid-way between the old jetty and the…

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