Fish 'capture and store 1 million tonnes of carbon'

Scientists have found that deep sea fish remove and store more than one million tonnes of Co2 from UK and Irish surface waters every year.

Fish deep offshore. Credit: PA

This natural carbon capture and storage scheme could store carbon equivalent to £10 million per year in carbon credits, according to the new study.

Researchers are warning that large-scale fishing and mining in deep waters could deplete this "valuable" resource.

The team from the University of Southampton and Marine Institute, Ireland, used novel biochemical tracers to piece together the diets of deep-water fish revealing their role in transferring carbon to the ocean depths.