[font face=Serif][font size=5]Abundant and diverse ecosystem found in area targeted for deep-sea mining[/font]
July 28, 2016 | Marcie Grabowski
[font size=3]In a study published in
Scientific Reports, scientists discovered impressive abundance and diversity among the creatures living on the seafloor in the Clarion-Clipperton Zone (CCZ)an area in the equatorial Pacific Ocean being targeted for deep-sea mining. The study, lead authored by
Diva Amon, a post-doctoral researcher at the University of Hawaiʻi at Mānoa
School of Ocean and Earth Science and Technology, found that more than half of the species they collected were new to science, reiterating how little is known about life on the seafloor in this region.
We found that this exploration claim area harbors one of the most diverse communities of megafauna (animals over 2 cm in size) to be recorded at abyssal depths in the deep sea, said Amon.
The deep sea is where the next frontier of mining will take place. A combination of biological, chemical and geological processes has led to the formation of high concentrations of polymetallic manganese nodules on the deep seafloor in the CCZan area nearly the size of the contiguous United States. These nodules are potentially valuable sources of copper, nickel, cobalt and manganese, among other metals, which has led to an interest in mining this region. All of the potential polymetallic-nodule exploration contracts that have been granted in the Pacific are in this region, according to the
International Seabed Authority.
This study, part of the
ABYSSLINE Project, was the first to characterize the abundance and diversity of seafloor-dwelling animals, a key component of deep-sea ecosystems, in an exploration claim area leased to UK Seabed Resources Ltd. (UK-1) in the eastern portion of the CCZ.
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