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Caribbean in Ipanema: Discovery of Pink Calcareous Algae Banks Surprises Researchers

Researchers discovered two banks of rhodoliths near Ipanema, in Rio de Janeiro. One has about 20,000 square meters and both will be studied with an underwater robot and a sonar.

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Researchers discovered two banks of rhodoliths near Ipanema, in Rio de Janeiro. One has about 20,000 square meters and both will be studied with an underwater robot and a sonar.

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Ipanema has evidence that the bottom of the oceans is less known than the surface of the Moon. Researchers have found only four kilometers from the beach, in the vicinity of the Cagarras Islands, entire pink painted ecosystems. They are rodolite banks, coral-like reefs, but built by calcareous algae and serve as cradles and homes for fish, crustaceans, molluscs and a number of other marine animals.

·Rio de Janeiro, Brazil
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Ipanema has evidence that the seabed is less well researched than the moon's surface. Just four kilometers from the beach, near the Cagarras Islands, researchers have discovered entire ecosystems immersed in pink. These are rodolithic banks, reefs that resemble coral reefs, but consist of calcareous algae and as a habitat for fish, crustaceans, [...] The post Caribbean in Ipanema: Discovery of pink limestone stocks surprises researchers first ap…

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Globo broke the news in Rio de Janeiro, Brazil on Monday, September 28, 2026.
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