Tasmania's southeast coast sees rare bioluminescent algal bloom signaling marine ecosystem imbalance

Tasmania's southeast coast is experiencing a significant bloom of bioluminescent red algae, Noctiluca scintillans, which glows blue at night. This bloom is the largest seen in nearly a decade and indicates an imbalance in the marine ecosystem. The algae consume plankton, reduce oxygen levels, and release ammonia, which can harm marine life. Recent blooms of salps, caused by excess nutrients from agriculture, have contributed to this situation, creating a cycle that promotes further algal growth. While the algae are not toxic to humans, they may cause skin irritation. The blooms are visually striking, attracting attention online, but their sudden appearance raises concerns about the health of the marine environment.