Coral-eating fish faeces may act as ‘probiotics’ for reefs, says study

Coral-eating fish faeces may act as ‘probiotics’ for reefs, says study

Source: theguardian

4/13/2023

Credit: Paul Jarrett/PA

Corallivorous fish were regarded as harmful to coral but research suggests their poo could be keeping reefs healthy

The faeces of coral-eating fish may act as “probiotics” for reefs, according to a study.

Previously it was thought that corallivore – fish such as pufferfish, parrotfish and butterfly fish that eat coral – weakened marine surfaces. But new research suggests that by eating some parts of the coral and then pooing in different areas of the reef, they are part of a cycle that redistributes beneficial microbes that can help coral thrive.

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