Fluorescent blue cast in Brazilian waters stuns canoeing team

The bioluminescence phenomenon in Florianopolis, Brazil. Photo: SCC10

A fluorescent blue cast in Brazilian waters stunned a canoeing team on Wednesday (26) when rowers discovered an underwater glowing light in the sea of southern Florianopolis in Santa Catarina.

The bioluminescence phenomenon is caused by phytoplankton microalgae. The tiny cells flash when they’re disturbed by waves or currents and scientists believe it’s a self-protecting mechanism. The luminous light show used to take place during calm and warm water seasons, although climate change has altered its pattern.

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Tatiana Cesso

As a journalist, I've made it my mission to explore and share stories that inspire, inform, and entertain. You may have stumbled upon my work in esteemed publications such as InStyle, Marie Claire, Bazaar, L’Officiel, and Vogue, among others. Having called the U.S. home since 2010, I've lived in Chicago, LA, and currently, Miami. But my heart always beats to the rhythm of Brazil. It's where I was born and raised, and my love for its culture, people, and energy knows no bounds. To share this passion, I've founded Brazilcore, a platform aimed at bridging the gap between Brazil and English speakers worldwide.