January 1st 2025.
Last night, as people gathered along the shores of south-east Tasmania, they were in for a unique treat instead of the usual fireworks. A magnificent display of bioluminescent algae, known as Noctiluca scintillans, was lighting up the ocean in a dazzling spectacle. This phenomenon, also referred to as sparkling night light, only happens once every ten years, making it a truly special sight to behold.
Jules Witek, a photographer, was lucky enough to capture the stunning scene at Pirates Bay Beach in Eaglehawk Neck. He described the ocean as being illuminated with a mesmerizing blue light, reminiscent of the popular movie Avatar. Children were eager to get closer to the glowing water, much to the amusement of their parents. Witek himself was in awe, claiming that it was the biggest bioluminescent bloom he had ever seen.
During the day, the algae appears as red streaks, but at night, it transforms into a vibrant electric blue. Dr Lisa-ann Gershwin, a Tasmanian biologist, shared that although it is not uncommon to see this type of algae off the coast of Tasmania, this particular bloom was the largest she had seen since 2015. She also mentioned that Tasmania has become a global hotspot for this type of algae, making it a frequent occurrence, but not at this magnitude.
Gershwin explained that while the bioluminescent algae was a breathtaking sight for humans, it is actually an invasive pest that has been present in the ecosystem for decades. Its presence is a sign that the ecosystem is unbalanced, and it can be harmful to marine life. The algae feeds on phytoplankton and zooplankton, disrupting the food chain and causing devastating effects on the ecosystem.
Aside from depleting oxygen levels in the water, the algae also exudes ammonia, which can burn the delicate tissues of marine life. However, Gershwin reassured that the algae is not harmful to humans. In fact, earlier this year, a similar occurrence happened in Sydney's Northern Beaches, and last year in South Australia, giving people the chance to witness this rare and magical event.
As we welcome the new year, let us also remember the importance of maintaining a balanced and healthy ecosystem, and appreciate the wonders of nature in a responsible and respectful manner.
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