Viewing: intertidal zone

Sep 26

September 26, 2019

Species sighted at Witton Bluff & Christies Reef

Species sighted at Witton Bluff & Christies Reef by Steve Reynolds As reported in My Early Diving Days , Witton Bluff is the high point on the coast between Port Noarlunga and Christies Beach. It is named after the 1839 wreck of the David Witton. I did my first sea snorkel there in January 1978. I returned there later that year with... Read more

Posted in Algae, Bony fishes, Citizen Science, Coastal species, Dive Reports, intertidal zone, Marine invertebrates, Nudibranchs, Plants, sea urchins, Sharks & Rays, Species lists | By

Jul 22

July 22, 2019

The Growth of Mangroves at the Jervois Basin, Ethelton

The Growth of Mangroves at the Jervois Basin, Ethelton by Steve Reynolds On 20th July 2019, I visited the Jervois Basin Ships’ Graveyard, along with Phill McPeake’s son-in-law Danny and his brother Gerard, with some of their children. We were there to record details of the Trafalgar wreck as part of the GIRT Scientific Divers program. Danny & I, along... Read more

Posted in Citizen Science, Coastal activities, intertidal zone, Mangroves, Maritime History | By

Nov 7

November 7, 2018

Living the Dream about the Seagrass Lady

“Living the Dream about the Seagrass Lady” by Steve Reynolds During the 1980s, I was given a copy of a Reader’s Digest article about a “Seagrass Lady” called Anitra Thorhaug who was pioneering transplanting of seagrass to restore degraded habitat. Her work was something that I aspired to back then. Now, 30 years later, I am ‘living the dream’ and... Read more

Posted in Achievements, Coastal activities, Conservation, intertidal zone, Plants, Seagrass | By

Jan 25

January 25, 2018

Dredging at Outer Harbor

Dredging will again be carried out in the Outer Harbor shipping channel and the swing basin next winter. The EPA has recommended that Flinders Ports use a smaller dredging vessel than what was used 13 years ago. In 2005, dredge spoil spread down Gulf St Vincent, reducing visibility and smothering seagrass. Environmental groups have called for all dredged silt to... Read more

Posted in Coastal activities, Conservation, Education, intertidal zone, Marine Protected Areas, Pollution, Stormwater | By

Oct 10

October 10, 2017

The small congolli that I found ‘belly up’ at Myponga Beach

I recently collected a small congolli that I found effectively ‘belly up’. The small congolli effectively ‘belly up’ (Taken by David Muirhead) Actually, it was lying on its side, on the shallow bottom towards one sandy rubbly bank of the moderately briskly outflowing but very narrow rivulet. The small congolli lying on its side, on the shallow bottom  (Taken by David Muirhead) The rivulet,... Read more

Posted in Bony fishes, Citizen Science, Coastal species, Freshwater systems, intertidal zone | By

Sep 19

September 19, 2017

More About the Normanville Communication Cable

Further to my article “The 1875 Communication Cable from Normanville to Kangaroo Island”, whether the cable was installed in during the 1860s or the 1870s, has been a niggling doubt for the author. The few historical records I’d come across seemed to vary a bit as to key dates with regards to the draft project’s definitive government funding approval date, works commencement and completion dates,... Read more

Posted in intertidal zone, Jetties, Maritime History | By

Sep 13

September 13, 2017

The 1875 Communication Cable from Normanville to Kangaroo Island

In December 1875, a submarine communication cable ran from Normanville to Kingscote on Kangaroo Island. Society member and local resident, David Muirhead sent us the following details and photographs concerning the cable: – The spot where the communication cable to Kangaroo Island ran into the sea at Normanville (Taken by David Muirhead) The jigsaw-shaped bit of wet sand at the... Read more

Posted in intertidal zone, Jetties, Maritime History | By

Feb 18

February 18, 2017

A Few Finds From Around Coffin Bay

Herewith a few finds, most made recently near (the) home (of Brian and Bernadette Saunders of Coffin Bay) : Eggs sacs like balloons on strings, their sandy stalks attached below the sand’s surface. We had previously found larval sea snails in similar egg sacs but these were a little smaller (about 20 mm in length) so we opened one and... Read more

Posted in Coastal species, intertidal zone, Shorebirds | 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 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