Reef restoration project hits new milestone

A massive reef restoration project in Southern Australia has reached a new milestone.

Reef restoration

Divers seed baby oysters on the artificial reef. Image: Provided Source: The Nature Conservancy

Fifty thousand baby oysters have been settled into their new home on an artificial reef off South Australia’s Yorke Peninsula.

Though just the size of fifty cent coins, there are big hopes for these small residents.

"Bringing back the native oyster reef is really important because the reefs are like the lungs of the gulfs," said Anita Nedosyko of the Nature Conservancy.

"They filter water, and they also provide extra food and habitat for fish."

The project is taking place off the South Australian coast, near the town of Ardrossan.
The project is taking place off the South Australian coast, near the town of Ardrossan. Source: SBS


Xiaoxu Li, science leader in agriculture at the South Australian Research and Development Institute, said native oysters were once widespread across Southern Australia, but numbers have depleted.

"That’s why you can rarely see the native oyster in our restaurants," he said.

He helped grow the baby Australian Native Flat Oysters in an Adelaide hatchery and said the native species is resistant to the devastating POMS disease that has affected oyster production interstate.

"It’s a really good thing," he said. "We can farm this species if the disease comes to South Australia."

'Like putting a well-stocked fridge into the Gulf'

Early European settlers were enthusiastic consumers of the Australian Native Flat Oyster, but over-harvesting means an estimated 99 per cent of native oyster reefs have since disappeared.

The Windara reef restoration project, off South Australia’s Yorke Peninsula, aims to restore what has been lost.

Anita Nedosyko of the Nature Conservancy said the project has been a collaboration with state and federal governments as well as the local council and research partners.

Baby oysters are grown in this Adelaide hatchery.
Baby oysters are grown in this Adelaide hatchery. Source: SBS


She expects the reef will attract bigger fish, including popular species such as King George Whiting and snapper.

"Oyster reefs are excellent in providing food for lots of different little critters like shrimps and crabs, and this draws all the larger fish to the reef. So what it does, it’s like putting a well-stocked fridge into the Gulf [St Vincent, South Australia]."

Hopes project will boost tourism

Brooke Liebelt, Yorke Peninsula Tourism Manager, is excited by the project. She is hoping it will bring more tourists as well the potential for local economic growth.

"It’s a great asset that can now be activated by, hopefully some commercial operators," she says, "but also from a recreational fishing point of view, from an environmental point of view as well."




Ms Nedosykosays said although it is early days, there are already positive signs of growth.

"We’re already starting to see some abalone, some sea urchins. The occasional snapper on the reef."

"The native oysters will take about three years to grow to maturity, to reproduce, then they’ll be self-seeding the reef."


Share

3 min read

Published

Updated

By Rhiannon Elston



Share this with family and friends


Get SBS News daily and direct to your Inbox

Sign up now for the latest news from Australia and around the world direct to your inbox.

By subscribing, you agree to SBS’s terms of service and privacy policy including receiving email updates from SBS.

Download our apps
SBS News
SBS Audio
SBS On Demand

Listen to our podcasts
An overview of the day's top stories from SBS News
Interviews and feature reports from SBS News
Your daily ten minute finance and business news wrap with SBS Finance Editor Ricardo Gonçalves.
A daily five minute news wrap for English learners and people with disability
Get the latest with our News podcasts on your favourite podcast apps.

Watch on SBS
SBS World News

SBS World News

Take a global view with Australia's most comprehensive world news service
Watch the latest news videos from Australia and across the world