Researchers have shown that the destruction of key hydrothermal vents by deep-sea mining could have knock-on impacts on vent fields hundreds of kilometres away.
Mineral-laden water emerging from a hydrothermal vent on the Niua underwater volcano in the Lau Basin, southwest Pacific Ocean.An international team of researchers has published a study showing that the destruction of key hydrothermal vents by deep-sea mining could have knock-on impacts on vent fields hundreds of kilometres away., hydrothermal vents are extreme deep-sea environments that exist in geologically active areas on the seafloor.
“Each hydrothermal vent often hosts some endemic species, meaning they only live there. So if you remove or severely damage their ecosystem, not only have you lost those animals, but you’ve lost that species entirely,” he said. This means that if a species population is wiped out at one hydrothermal vent, then the population of the same species at another hydrothermal vent, where the larval used to disperse to, will also be threatened.
Two vent sites, Sakai and North Knoll Iheya Ridge, were found to be the most important for maintaining connectivity in the Okinawa Trough sub-region and should be prioritized for conservation.
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