How a fake reef under the Opera House brought back an endangered seahorse | Laura_R_Chung, BillieEder & anthonysegaert
Concrete panels that mimic the natural habitat will be installed in nine additional locations around the harbour to reduce environmental impacts and help marine life as part of a $9.1 million funding boost from the NSW government.Credit:More than 85 per cent of people in NSW live within 50 kilometres of the ocean and coastal tourism employs more than 142,000 people working in the coastal zone.
She said if there were more living seawalls around Sydney, it would give swimmers greater opportunities to explore the water and marine life. Chair of SIMS Peter Cochrane said the harbour needed the active intervention of living seawalls to help restore Sydney’s waterways and biodiversity to what it once was.
He added that living seawalls play a crucial role in encouraging species back to the harbour because they house “filter feeders such as mussels and oysters,” which are species that feed on tiny organisms in the water, ultimately improving water quality in the harbour.“Sydney Harbour’s an estuary, quite a beautiful one. We’ve actually recorded, through time, over 600 species of fish. That’s more than in the entire coast of New Zealand or England,” he said.
“Sydney Harbour is a modern, working harbour at the beating heart of our city, but the effects of urbanisation and industrial activity have resulted in the loss of marine habitats and the species that call them home,” he said. “Because we lost it [crayweed] over such an extensive area, you need to actively intervene to reestablish it.”He said that one of the best examples of crayweed restoration was at Shelly Beach in Manly because “there’s been a concentrated effort to restore cray weed there, and it’s flourishing.”
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