A vibrant pink hue has transformed a Hawaiian pond into a spectacle reminiscent of a Barbie movie set. However, this striking colouration is not a reason to celebrate. Scientists attribute the anomaly to a possible drought, advising against any contact with or consumption of the water.
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At the Kealia Pond National Wildlife Refuge in Maui, staff noticed the pink water around October 30. Bret Wolfe, the refuge manager, received a curious call about the unusual sight while strolling along the beach.
Concerned about potentially toxic algae, tests revealed that halobacteria, a type of single-celled organism thriving in highly saline water, might be responsible for the pink colouration. Further DNA analysis is required for a definitive identification.
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The pond’s salinity, currently double that of seawater due to Maui's prolonged drought, is a likely contributor to this phenomenon. Ordinarily, Waikapu Stream replenishes Kealia Pond, but due to the drought, this hasn't occurred recently. Wolfe speculates that once rainfall allows the stream to flow into the pond, the salinity could decrease, potentially altering the water's colour.
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This unprecedented pink shade has intrigued visitors, drawing attention away from the refuge’s primary mission of conserving native and endangered waterbirds. Despite the distraction, Wolfe appreciates the fascination, acknowledging that if the pink water brings people to learn about their conservation efforts, it's a positive outcome.
The refuge, vital for endangered bird species like the Hawaiian stilt and coot, remains a crucial wetland habitat. There's no evidence of harm to the birds caused by the pink water. As a precaution, the public is strongly advised to refrain from entering the water or consuming any fish caught in the area until the cause of the colouration is confirmed.
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