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flag A deep-sea mining test caused a 37% drop in seafloor invertebrates and 32% loss in species diversity, new study finds.

flag A five-year study in the Pacific’s Clarion-Clipperton Zone found a 37% decline in seafloor invertebrates and a 32% drop in species diversity in areas directly impacted by a deep-sea mining machine. flag Researchers from the Natural History Museum, University of Gothenburg, and National Oceanography Centre collected 4,350 animals, identifying 788 species, many previously unknown. flag While sediment plumes did not reduce animal abundance, they increased dominance of certain species, indicating ecosystem disruption. flag The findings, the most comprehensive to date, provide critical data for the International Seabed Authority to guide deep-sea mining policies and underscore the need for expanded surveys in protected zones.

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