Emergency Protection Measures
The South Australian government has implemented a 90-day exclusion zone in the Upper Spencer Gulf, effective July 1, 2026, to protect the breeding grounds of giant Australian cuttlefish. The measure follows reports of “significantly low” numbers of the species arriving in their traditional sanctuary between Black Point and Stony Point.
Environment Minister Emily Bourke confirmed that the ban covers all in-water recreational activities, including swimming, snorkeling, diving, and vessel anchoring. The state government warned that non-compliance could lead to significant penalties, with fines reaching up to $100,000 for breaching the restricted area.
Environmental and Economic Impact
The decision comes after surveys revealed a sharp decline in the population that usually numbers in the tens of thousands during the annual migration. Mike Steer, executive director of the South Australian Research and Development Institute (SARDI), noted that while water temperatures remain a factor, the recent catastrophic algal bloom is a primary suspect in the population reduction. The bloom, which affected the region earlier this year, is believed to have disrupted the lifecycle of the hatchlings.
Local tourism operators are facing immediate financial strain, with many cancelling the season’s tours. To mitigate the economic impact, the government has announced that affected small businesses may apply for existing algal bloom support grants. Despite the disappointment, local stakeholders, including Whyalla Mayor Phill Stone, have largely supported the move as a necessary step to ensure the long-term survival of the species.
Looking Toward Recovery
While the current situation is dire, experts remain cautiously optimistic. Professor Steer pointed to the 2013 population crash, after which the species successfully rebounded within three years. The sanctuary zone will remain under constant review, and officials have indicated that the ban could be lifted early if monitoring shows a significant improvement in cuttlefish numbers.