Viewing: Marine invertebrates

Dec 14

December 14, 2016

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... Read more

Posted in Marine invertebrates, Research, Worms | By

Dec 13

December 13, 2016

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... Read more

Posted in Cnidaria, Marine invertebrates | By

Nov 27

November 27, 2016

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... Read more

Posted in Marine invertebrates, Molluscs, Seastars | By

Sep 8

September 8, 2016

What Is CIGESMED for Divers?

In November 2013, I hosted Vasilis Gerovasileiou from Greece during his visit to South Australia. We only managed one dive together though. We managed a dive at Rapid Bay jetty on16th November 2013. Vasilis had only brought a 5mm wetsuit with him for his dives in Australia. This suit probably served him well for dives in WA & Queensland, but... Read more

Posted in Citizen Science, Marine invertebrates, Molluscs, Research, sea urchins | By

Jul 19

July 19, 2016

Follow-up re Sea urchin barrens and mini-barrens

Further to my article titled “Sea urchin barrens and mini-barrens” (http://wp.me/p4BvtZ-pZ ), Society member, David Muirhead commented, “Magazine Bay looks so nice Steve. I can see why you dived that day rather than sat on the beach reading a magazine (or waiting for one to explode)!” David then added, “PS: the only barrens or minis I’d seen in my early... Read more

Posted in Marine invertebrates, sea urchins | By

Jul 3

July 3, 2016

Victorian marine worm I.D.

Early April 2016, we received an email message with the subject heading “Possible new species”. The message read (in part), “I was just went down Shoreham Beach with my family for a walk through the reef and stumbled across a strange creature. We were able to get a good quality video of it and thought I could send to you.... Read more

Posted in Coastal species, intertidal zone, Marine invertebrates, Worms | By

Feb 11

February 11, 2016

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... Read more

Posted in Crustaceans, Marine invertebrates | By

Feb 6

February 6, 2016

Photos of a beach washed Swimming Anemone, Phylctenactis tuberculosa

Phil Woodard has reported the discovery of a beached specimen of the Swimming Anemone, Phylctenactis tuberculosa on Henley Beach on 3rd February 2016. “The recent storm probably dislodged it from its rock,” he said. “Quite a lot of anchored seaweed has also washed up with stones attached. I still have the specimen in salt water although sadly it was DOA... Read more

Posted in Marine invertebrates | By

Feb 4

February 4, 2016

Warning of hefty penalties for reef picking

That heading comes from PIRSA as part of a warning to fishers regarding rules for removing organisms  from intertidal reefs in SA. Reef Watch says that it gets quite a few reports from members of the public who have observed people taking organisms off intertidal reefs. The taking of marine organisms from intertidal reefs was banned along the shore of Gulf... Read more

Posted in Coastal activities, Coastal species, Conservation, Fisheries, intertidal zone, Marine invertebrates, Marine Protected Areas, Molluscs, Regulation | By

Sep 20

September 20, 2015

Sea urchin barrens and mini-barrens

Our Patron, Scoresby Shepherd, was one of the editors of “Ecology of Australian Temperate Reef – The Unique South”, along with Graham Edgar. It was published in 2013. When the book was being prepared for publication, a little earlier on, Scoresby contacted me about one of my photos that had been published in our March 2009 newsletter (No.363). The photo... Read more

Posted in Marine invertebrates, sea urchins | By