Researchers at the University of Miami have discovered that Gulf toadfish rely on a symbiotic relationship with Vibrio bacteria to produce calcium carbonate pellets. This process, known as ichthyocarbonate formation, plays a role in how the ocean sequesters carbon dioxide and regulates marine chemistry. The study reveals that these microbes are active participants in mineral precipitation, challenging the previous belief that this was a purely physiological fish process. Understanding these biological networks helps refine ecological models used to predict how ocean acidification and climate change affect marine carbon sinks.
