Deep-sea mining could interfere with migration of tuna that is expected to be driven by climate change to areas of the Pacific Ocean currently slated for mining activity, a study released on Tuesday showed.
The Nature Sustainability journal study, which centred on three species of tuna, found climate change would likely change their migration patterns. That raised the potential for conflict between some of the world’s most valuable fisheries and the prospective mining in the Clarion-Clipperton Zone southeast of Hawaii.
“The high seas harbor a trove of biodiversity, and there are critical sectors of our economy that depend on this biodiversity,” said study co-author Dr. Juliano Palacios Abrantes from the University of British Columbia. Potentially impacting the fish would be plumes of sediment stirred up by mining of sea nodules and any associated noise or light pollution that could impact reproduction rates, among other issues, the study found.
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