Massive Bioluminescent Algae Bloom Lights Up Tasmania's Coastline

The rare natural phenomenon dazzles spectators but raises concerns about marine ecosystem health.

Tasmania's south-east coastline is experiencing its largest bioluminescent algae bloom in nearly a decade, featuring Noctiluca scintillans, also known as 'sea sparkles.'
The algae emits a striking blue glow at night, captivating onlookers, but appears as red streaks during the day, often referred to as 'pink slicks.'
Experts warn that the bloom is an indicator of ecosystem imbalance, linked to excess nutrients from agricultural and aquacultural activities.
The algae depletes oxygen levels, releases harmful ammonia, and consumes vital plankton, posing significant risks to marine life and aquaculture operations.
While the algae is not harmful to humans, it may cause mild skin irritation, and its presence is expected to lead to increased jellyfish populations as the bloom dies off.