Viewing: Pollution

Jun 19

June 19, 2019

Nudibranchs and other sea slugs of the Port River, South Australia

The Marine Life Society of SA was recently asked which species of sea slugs (which include nudibranchs) are found in the Port (Adelaide) River. We’ve only just started exploring the river underwater, so the list below is very much a work in progress. Prior to 2017, as far as we are aware, the river was largely unexplored (by divers at... Read more

Posted in Nudibranchs, Pollution, Stormwater | By

Jun 18

June 18, 2019

Aldinga Rd lead merchant, Willunga

What to do with old fishing gear found while snorkeling or diving?

Divers and snorkelers often come across discarded or entangled fishing gear underwater. Unsurprisingly, the problem is most pronounced around rocky points or jetty structures where people regularly fish. Responsible divers do the right thing, and where practical, cut loose and bring ashore any gear they encounter… though one must be careful not to pierce one’s neoprene gloves, wetsuits (or worse:... Read more

Posted in Conservation, Education, Equipment, Pollution | By

Oct 16

October 16, 2018

Elysia expansa, Fletcher's Dock 2018

The Port River – over 100 marine and coastal species and counting

I was first inspired to pay more attention to this often overlooked ecosystem by the discovery of the upside-down jellyfish, Cassiopea sp. there in 2016 by MLSSA president and area resident, Steve Reynolds. My personal explorations soon followed, beginning at Garden Island. There, a snorkeller can easily step into the water and explore several contrasting habitats within tens of metres:... Read more

Posted in Art & Culture, Citizen Science, Crustaceans, Mangroves, Marine invertebrates, Pollution, Underwater Photography | 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

Nov 4

November 4, 2017

The Beachport boat ramp issue

We recently received an email request from a student for our assistance with their school project. The student agreed to take on the degradation of the beach at Beachport as their topic. The degradation was thought to have been caused by a boat ramp being placed on the beach in the wrong position. I sent the following details to the... Read more

Posted in Coastal activities, Pollution | By

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... Read more

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

Oct 21

October 21, 2015

Southern Bluefin Tuna (Carl Charter)

Dan Monceaux’s submission to the Development Assessment Commission regarding Oceanic Victor’s marine aquarium proposal

To the Secretary, members of the Development Assessment Commission and any interested parties, Please accept my personal submission in response to development number 010/V030/15 – a proposal for the development of an “in sea marine aquarium in Encounter Bay” made by Oceanic Victor Pty Ltd. I am providing this submission in two parts. The first is a response to newly... Read more

Posted in Marine aquaria, Pollution, Submissions to Government | By

Jan 4

January 4, 2015

Black Cowry (Zoila friendii thersites) at Port Noarlunga - Dan Monceaux

Black Cowry (Zoila friendii thersites)

Yesterday, while snorkeling at the Port Noarlunga reef in near perfect conditions I was fortunate enough to encounter a South Australian endemic gastropod mollusk, the Black Cowry (Zoila friendii thersites). The animal I sighted was perched quite conspicuously on a large yellow/orange sponge in about three metres of water. I later discovered that a photograph taken by Greg Adams of one in... Read more

Posted in Marine invertebrates, Marine Protected Areas, Molluscs, Pollution | By

Dec 16

December 16, 2014

Sepia officinalis © Sebastian Niedlich CC BY-NC-SA 2

New research shows shipping sound impacts cuttlefish

Cuttlefish become stressed when exposed to shipping sound and panic when exposed to loud, low-frequencies, according to two scientific papers published this year. The Marine Life Society of South Australia believes that these results should trigger increased research efforts into the impact of shipping noise on the Giant Australian cuttlefish aggregation at Point Lowly, near Whyalla in South Australia. They argue that the matter... Read more

Posted in Acoustics, Cephalopods, Marine invertebrates, Molluscs, Pollution | By

Nov 30

November 30, 2014

Buried Shovelnosed ray, Glenelg by Dan Monceaux MLSSA

Nocturnal observations around Glenelg marina and jetty

While this weekend’s scorching hot temperatures kept my wife and I out of the sun for the most part, we couldn’t resist making a late night beach walk down at Glenelg. While the habitats there are highly modified due to breakwater and marina construction, dune removal for coastal development plus stormwater, Patawalonga and treated wastewater inflows, there remains an abundance... Read more

Posted in intertidal zone, Invasive species, Jetties, Marine invertebrates, Pollution, Sharks & Rays, Stormwater | By