Fish gut bacteria may play key role in regulating ocean health

06 June,2026 10:17 AM IST |  Miami  |  Agencies

A new study suggests bacteria in the intestines of bony fish help produce calcium carbonate, a mineral that supports ocean chemistry and acts as an important carbon sink, potentially influencing marine ecosystems

Gulf toadfish (Opsanus beta). Pic/Rosenstiel School of Marine


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A new study suggests that bacteria in fish intestines may work together with their hosts to produce a form of calcium carbonate.

This mineral plays an important role in ocean chemistry and serves as a significant carbon sink.

Bony fish, known as teleosts, constantly drink seawater and their intestines remove excess calcium and carbonate ions.

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