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JUSTIN GILLIGAN Photography

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10 images Created 7 Jul 2021

Sydney Submerged

Sydney’s sun-spangled waters are central to the city’s national and international reputation. But just how much life lies submerged, hidden away from the above-water pressures of Australia’s biggest city and its ever-sprawling human population beneath iconic landmarks, beaches and headlands? Sydney’s marine environment is exposed to most of the threats faced globally by coastal cities, including habitat loss, foreshore development, pollution, stormwater run-off and introduced pests. Despite this, there is a wild world thriving in these meandering waterways and coastal strip, with some plant and animal inhabitants not only coping with the shortcomings, but also finding their own strongholds.
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  • Sunset reveals a diverse marine milieu - including this stand of common kelp, usually hidden from view - beneath much-loved landmarks, such as the Sydney Harbour Bridge.
    Sydney_01.jpg
  • Some fish species such as White’s seahorse, which is often seen holding onto the nets of swimming enclosures, have managed to survive surprisingly well in Sydney’s altered marine environments.
    Sydney_02.jpg
  • Rubbish occasionally turns into treasure: this discarded can is transformed into a home for a brown sabretooth blenny at Chowder Bay.
    Sydney_03.jpg
  • The wreck of the SS Ayrefield in Homebush Bay has been overgrown by one of the the largest remaining stand of mangroves in the Sydney Harbour.
    Sydney_04.jpg
  • The wreck of a motor bike provides habitat for natural reef inhabitants including fish and crustaceans. It also provides a place to explore for recreational divers in the Cabbage Tree Bay Aquatic Reserve.
    Sydney_05.jpg
  • Associate Professor Adriana Verges investigates and measures transplanted crayweed as part of Operation Crayweed - an initiative to restore this species along Sydney's beaches.
    Sydney_06.jpg
  • Libby Hall, Manager of Taronga Wildlife Hospital and Pest Control works to rehabilitate marine turtles often brought into care from Sydney waterways. Once released the turtles are fitted with a satellite tag, which has demonstrated the importance of Sydney estuaries for marine turtles.
    Sydney_07.jpg
  • A veterinary surgeon at the Taronga Wildlife Hospital & Pest Control holds a pied cormorant following surgery to remove ingested fishing hooks, visible in the x-ray.
    Sydney_08.jpg
  • Harriet Spark founder of community group Operation Straw inspires volunteers through organised beach clean-up events targetting straws and other marine debris on beaches near Manly.
    Sydney_09.jpg
  • The much-adored eastern blue grouper is only found off south-east Australia and is regularly encountered in seven aquatic reserves aiming to protect some of Sydney’s most accessible and biologically diverse coastal areas.
    Sydney_10.jpg