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New Air Curtain Shields Cuttlefish from Algal Blooms

9/6/2025

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Story summary
  • Spencer Gulf, South Australia, has a new air bubble curtain to shield giant cuttlefish from harmful algal blooms.
  • Tens of thousands of cuttlefish breed near Whyalla, with this year's bloom endangering their hatchlings.
  • The 200m by 100m curtain aims to protect 50,000 to 80,000 eggs and hatchlings.
  • Dr. Zoe Doubleday describes it as a “worst-case scenario measure” for algae threats.
  • The cuttlefish population is currently estimated at 63,400, down from 81,420 in 2024.