Jul 9

July 9, 2017

The Branched Feeding Tentacles of Dendrochirotid Sea Cucumbers

I recently posted this photograph on the “ID Please (Marine Creature Identification)” Facebook page, asking “Are these sea cucumber tentacles? Taken at Port Stanvac, South Australia.” I soon received a reply from Frédéric Ducarme saying “Yes, dendrochirotid sea cucumbers.” Frederic provided me with a link to Wikipedia where it read ““Dendrochirotida are an order of sea cucumbers. Members of this order have branched tentacles and are suspension feeders. Examples include Thyonella and Cucumaria.” The Wikipedia page went on to say,…

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Jul 6

July 6, 2017

Port Noarlunga Anchor’s Anniversary

The ‘big’ anchor at Port Noarlunga reef has been there as long as I have known, but only just. It was apparently placed in position at the reef just under two weeks before I did my first dive there. It was years before I got to see it though. It was Sunday 22nd January 1978 when divers moved the anchor from where it had been buried in sand to a rocky area where it would be seen more by divers….

Posted in Dive Reports, Maritime History | By

Jul 6

July 6, 2017

We can claim to have reached a 60-year milestone in 2017

As explained in my article titled “MLSSA replaced the SA Museum Underwater Research Group”, “MLSSA, formerly MARIA (SA Branch), followed on from the SA Museum Underwater Research Group. The Museum URG was established in 1957. It was part of many international URGs which commenced in France in 1945. The first URG was established in Toulon, France in 1945 and was led by Philippe Tailliez. Several URGs sprang up throughout Australia during the mid-1950s. The SA Museum URG was established in…

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Jun 26

June 26, 2017

Bolinopsis, Port Bonython 2017 - Dan Monceaux

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 me to pursue a positive identification of the species. It turned out to be a comb jelly, and my interest in the animal was piqued and extended with help from the author of the books Stung! and Jellyfish: A Natural History, Dr Lisa-Ann Gershwin. I posted the photo on the…

Posted in Cnidaria, Invasive species, Jetties, Marine invertebrates | By

Jun 25

June 25, 2017

Our stay at the Moonta Bay Beach Villas

A small group of Society members were able to stay at the Moonta Bay Beach Villas over the weekend recently, thanks to the kindness of Peter Anastassiadis. We were supposed to be a bigger group, but half of the group cancelled out at the last minute due to cold or flu problems. Lyndon and David arrived at the villa on the Friday night. They were soon joined by Haixia Wen. Lyndon was able to do some stand-up paddle boarding by…

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Jun 19

June 19, 2017

Osedax Worms Update 2

Osedax worms have been found in Australian waters for the first time. Osedax worms are ‘whale’ worms, worms that feed on the bones of dead whales. They were recently found burrowed deep inside the bones of a pilot whale hauled up from a deep-sea abyss off Byron Bay, New South Wales (no pun intended). The skull and spine of the pilot whale were both hauled up from the abyss off Australia’s east coast. Scientists discovered Osedax worms burrowed deep inside…

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Jun 13

June 13, 2017

Congolli, Pseudaphritis urvillii

This fish that I photographed at the Ships’ Graveyard in the North Arm of the Port River earlier this year was confirmed on iNaturalist as being a Congolli (Pseudaphritis urvillii). I had reported the sighting of the Congolli in my article titled “Further Discoveries at the Ships Graveyard” at http://mlssa.org.au/2017/03/25/further-discoveries-at-the-ships-graveyard/ I came across another one in Angas Inlet at the Garden Island jetty during a night dive there on 8th June (World Oceans Day). My photos of it were certainly…

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Jun 12

June 12, 2017

Shovelnose Stingarees

Fish identification can be tricky at the best of times. Then there are often new species that were not included in the old fish books. And the scientific names of species are often changing, and even changing back again. I recently revisited my 2016 article titled “Same Ray Seen Two Months Apart” (It can be found at http://mlssa.org.au/2016/01/09/same-ray-seen-two-months-apart/). It was about my sighting of a ‘stingray’ with part of its tail missing. I had seen what appeared to be the…

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May 28

May 28, 2017

Turn the Tide on Plastics in the Ocean

On Sunday 28th May, my wife and I attended a gathering at the Largs Bay jetty kiosk. Artist Andrew Baines was conducting one of his famous photo shoots on the beach by the jetty. The photo shoot was being linked to World Ocean’s Day. It was held in collaboration with United Nations Associated of Australia (SA) & the City of Port Adelaide Enfield. Everybody who wanted to take part in the photo shoot had to dress in black and wear…

Posted in Conservation, Events, Pollution, Submissions to Government | By

May 22

May 22, 2017

Nudibranch name change

According to the web page found at http://www.urgdiveclub.org.au/scientific-names-do-change/ , “two-part scientific names contain a hierarchy which can change if an organism is re-classified”. I wrote about this topic in my article titled “Changes to Seastar Names” at http://mlssa.org.au/2010/10/07/changes-to-seastar-names/ . It can be difficult for ‘hobbyists’ such as ourselves to keep up with the changes for projects such as our Photo Index. It recently came to my attention, thanks to Society member Jeff Bowey, that the red-netted nudibranch previously known as Chromodoris…

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