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  • Jones, Daniel O.B. (author)

Environment, ecology, and potential effectiveness of an area protected from deep-sea mining (Clarion Clipperton Zone, abyssal Pacific)

  • Article/chapterEnglish2021

Publisher, publication year, extent ...

  • Elsevier BV,2021

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/306828
  • https://gup.ub.gu.se/publication/306828URI
  • https://doi.org/10.1016/j.pocean.2021.102653DOI

Supplementary language notes

  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • To protect the range of habitats, species, and ecosystem functions in the Clarion Clipperton Zone (CCZ), a region of interest for deep-sea polymetallic nodule mining in the Pacific, nine Areas of Particular Environmental Interest (APEIs) have been designated by the International Seabed Authority (ISA). The APEIs are remote, rarely visited and poorly understood. Here we present and synthesise all available observations made at APEI-6, the most north eastern APEI in the network, and assess its representativity of mining contract areas in the eastern CCZ. The two studied regions of APEI-6 have a variable morphology, typical of the CCZ, with hills, plains and occasional seamounts. The seafloor is predominantly covered by fine-grained sediments, and includes small but abundant polymetallic nodules, as well as exposed bedrock. The oceanographic parameters investigated appear broadly similar across the region although some differences in deep-water mass separation were evident between APEI-6 and some contract areas. Sediment biogeochemistry is broadly similar across the area in the parameters investigated, except for oxygen penetration depth, which reached >2 m at the study sites within APEI-6, deeper than that found at UK1 and GSR contract areas. The ecology of study sites in APEI-6 differs from that reported from UK1 and TOML-D contract areas, with differences in community composition of microbes, macrofauna, xenophyophores and metazoan megafauna. Some species were shared between areas although connectivity appears limited. We show that, from the available information, APEI-6 is partially representative of the exploration areas to the south yet is distinctly different in several key characteristics. As a result, additional APEIs may be warranted and caution may need to be taken in relying on the APEI network alone for conservation, with other management activities required to help mitigate the impacts of mining in the CCZ.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Simon-Lledó, Erik (author)
  • Amon, Diva J. (author)
  • Bett, Brian J. (author)
  • Caulle, Clémence (author)
  • Clément, Louis (author)
  • Connelly, Douglas P. (author)
  • Dahlgren, Thomas G.,1963Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences(Swepub:gu)xdahth (author)
  • Durden, Jennifer M. (author)
  • Drazen, Jeffrey C. (author)
  • Felden, Janine (author)
  • Gates, Andrew R. (author)
  • Georgieva, Magdalena N. (author)
  • Glover, Adrian G. (author)
  • Gooday, Andrew J. (author)
  • Hollingsworth, Anita L. (author)
  • Horton, Tammy (author)
  • James, Rachael H. (author)
  • Jeffreys, Rachel M. (author)
  • Laguionie-Marchais, Claire (author)
  • Leitner, Astrid B. (author)
  • Lichtschlag, Anna (author)
  • Menendez, Amaya (author)
  • Paterson, Gordon L.J. (author)
  • Peel, Kate (author)
  • Robert, Katleen (author)
  • Schoening, Timm (author)
  • Shulga, Natalia A. (author)
  • Smith, Craig R. (author)
  • Taboada, Sergio (author)
  • Thurnherr, Andreas M. (author)
  • Wiklund, Helena (author)
  • Young, C. Robert (author)
  • Huvenne, Veerle A.I. (author)
  • Göteborgs universitetInstitutionen för marina vetenskaper (creator_code:org_t)

Related titles

  • In:Progress in Oceanography: Elsevier BV197:September-October 20210079-6611

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