News: Oyster farm

Steps to Clean Up the Algal Bloom

Around 30% of SA’s coastline is being impacted by a harmful algal bloom driven by heatwaves, nutrient run-off, and upwelling events. According to Environment Institute members Dr Dominic McAfee and Prof Sean Connell, the bloom is far too widespread for large-scale chemical, physical, or microbial trials. Instead, prevention and resilience are key. Oysters in affected areas are feeding on algae, mussels are cleared of toxins, and SA has committed to restoring 15 hectares of shellfish reefs. As climate change fuels more marine heatwaves and floods, HABs will return. Investing in oyster reef restoration and nature-based solutions could future-proof our coasts.

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