Caroline Horn

It's been 185 years this month since Australia's first Mormon arrived in Adelaide. He immediately regretted the move.

Infrastructure to monitor the impact of rising sea levels and storm surges on the Coorong in South Australia has been installed along the thin strip of coastline between Goolwa Beach and the lagoons of the Ramsar-listed wetland.

New research awaiting peer review has provided a few revelations about the make-up of South Australia's algal bloom, with a new predominant species — Karenia cristata — identified by scientists. Here's what we know so far. 

Scientists are pointing the finger of blame towards a little known algal species for causing South Australia's devastating algal bloom.

Scientists believe they have identified the species responsible for the toxins in South Australia's marine algal bloom that has killed millions of aquatic animals.

The small, fragile colony of surviving little penguins on South Australia's Granite Island records a "significant increase" in numbers amid the state's harmful algal bloom.

Victor Harbor was one of the first areas affected by SA's harmful algal bloom. Now its citizens are funding and supporting research into rebuilding native mussel populations as it looks to the future.

A Kangaroo Island brewer says he will no longer supply beer to the island's ferry service, amid a growing outcry over the high cost of fares to the popular international tourism destination. 

Information gleaned from tiny growth rings on "ear bones" of native pygmy perch could be the key to bringing them back from local extinction in the lower Murray. 

Scientists have questioned the link between the 2022-23 floods and South Australia's ongoing harmful algal bloom, despite the state government listing it as one of the three primary causes.

A dive tour operator already grappling with the impact of the state's algal bloom says his business will not survive if the government does not repair the old Rapid Bay jetty and reopen the "world-class" dive site surrounding it.

SA residents are turning to expensive muzzles to protect their pets from the algae crisis so they can keep walking them on the beach.

Matthew Hutchinson says a school scholarship "fundamentally changed his life". He is now trekking across the US to give underprivileged kids the same opportunity. 

Dozens of sharks and rays collected from Adelaide beaches will be studied to find out how they were killed by the algal bloom amid fears of future local extinctions.

Dolphins, sea lions, sharks, rays and fish have all been sighted washed up dead on Adelaide's beaches as the impact of the algal bloom continues to be felt across the state.

The deadly micro algal bloom that has killed millions of marine creatures along South Australia's coastline continues to wreak havoc and cause "complete ecosystem failure from the bottom up".

An unexpected online auction buy lands an 8-metre-long, 3m-high dinosaur in a Milang front yard, bringing smiles and new visitors to the struggling town.

Wild storms push an algal bloom off SA's coast into the Coorong's lagoons, leaving the water "as thick as pea soup" and alarming fishers. 

Concerns are growing for SA's endangered sea lions, prompting a call for a Coorong-based testing laboratory to ensure a "nimble" response to H5N1 bird flu's potential arrival.

Storms earlier this week could have broken up an algal bloom that has led to a huge number of marine wildlife deaths off South Australia.

As the marine life of South Australia's coastline suffers, residents are coming together to make sense of what they are seeing.

As sharks, rays, and other marine life continue to wash up on South Australian beaches, citizen scientists are urged to record the scale of the lingering marine algal bloom event.

Little penguin Pearl is so rare she is first of her type seen by an academic who has been studying her species for a decade.

Residents say they have seen fish and other marine life washed ashore in the days since a large-scale toxic algae bloom and fish kill at Fleurieu Peninsula beaches.

Grandmother Mariya Samkova has made a new home in an Australian country town, but dreams of returning one day to Ukraine to see her relatives and friends.