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Potential impacts of polymetallic nodule removal on deep-sea meiofauna

Ellen Pape (UGent) , Tânia Campinas Bezerra (UGent) , Hendrik Gheerardyn, Marius Buydens (UGent) , Amanda Kieswetter (UGent) and Ann Vanreusel (UGent)
(2021) SCIENTIFIC REPORTS. 11(1).
Author
Organization
Abstract
Deep seabed mining is potentially imminent in the Clarion Clipperton Fracture Zone (CCFZ; northeast Pacific). Seabed collectors will remove polymetallic nodules and the surrounding surface sediments, both inhabited by meiofauna, along their path. To determine potential impacts of polymetallic nodule removal, we investigated the importance of nodule presence for the abundance, composition and diversity of sediment meiofauna, and evaluated the existence and composition of nodule crevice meiofauna in the Global Sea Mineral Resources (GSR) exploration contract area. Nodule-free and nodule-rich sediments displayed high biodiversity with many singletons and doubletons, potentially representing rare taxa. Nodule presence negatively influenced sediment meiofaunal abundances but did not markedly affect taxonomic composition or diversity. This is the first report on CCFZ nodule crevice meiofauna, whose abundance related positively to nodule dimensions. Though dominated by the same taxa, nodules and sediments differed regarding the taxonomic and trophic composition of the meio- and nematofauna. Nevertheless, there were no taxa endemic to the nodule crevices and nodule crevice meiofauna added only little to total small-scale (similar to cm) meiofaunal abundance and diversity. We formulated environmental management recommendations at the contract area and regional (CCFZ) scale related to sampling effort, set-aside preservation and monitoring areas, and potential rehabilitation measures.
Keywords
Multidisciplinary, HARPACTICOIDA CRUSTACEA, SPECIES-DIVERSITY, MARINE NEMATODES, FEEDING ECOLOGY, PATTERNS, COMMUNITIES, ASSEMBLAGES, FRAMEWORK, SEDIMENT, PROVINCE

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Citation

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MLA
Pape, Ellen, et al. “Potential Impacts of Polymetallic Nodule Removal on Deep-Sea Meiofauna.” SCIENTIFIC REPORTS, vol. 11, no. 1, 2021, doi:10.1038/s41598-021-99441-3.
APA
Pape, E., Campinas Bezerra, T., Gheerardyn, H., Buydens, M., Kieswetter, A., & Vanreusel, A. (2021). Potential impacts of polymetallic nodule removal on deep-sea meiofauna. SCIENTIFIC REPORTS, 11(1). https://doi.org/10.1038/s41598-021-99441-3
Chicago author-date
Pape, Ellen, Tânia Campinas Bezerra, Hendrik Gheerardyn, Marius Buydens, Amanda Kieswetter, and Ann Vanreusel. 2021. “Potential Impacts of Polymetallic Nodule Removal on Deep-Sea Meiofauna.” SCIENTIFIC REPORTS 11 (1). https://doi.org/10.1038/s41598-021-99441-3.
Chicago author-date (all authors)
Pape, Ellen, Tânia Campinas Bezerra, Hendrik Gheerardyn, Marius Buydens, Amanda Kieswetter, and Ann Vanreusel. 2021. “Potential Impacts of Polymetallic Nodule Removal on Deep-Sea Meiofauna.” SCIENTIFIC REPORTS 11 (1). doi:10.1038/s41598-021-99441-3.
Vancouver
1.
Pape E, Campinas Bezerra T, Gheerardyn H, Buydens M, Kieswetter A, Vanreusel A. Potential impacts of polymetallic nodule removal on deep-sea meiofauna. SCIENTIFIC REPORTS. 2021;11(1).
IEEE
[1]
E. Pape, T. Campinas Bezerra, H. Gheerardyn, M. Buydens, A. Kieswetter, and A. Vanreusel, “Potential impacts of polymetallic nodule removal on deep-sea meiofauna,” SCIENTIFIC REPORTS, vol. 11, no. 1, 2021.
@article{8725013,
  abstract     = {{Deep seabed mining is potentially imminent in the Clarion Clipperton Fracture Zone (CCFZ; northeast Pacific). Seabed collectors will remove polymetallic nodules and the surrounding surface sediments, both inhabited by meiofauna, along their path. To determine potential impacts of polymetallic nodule removal, we investigated the importance of nodule presence for the abundance, composition and diversity of sediment meiofauna, and evaluated the existence and composition of nodule crevice meiofauna in the Global Sea Mineral Resources (GSR) exploration contract area. Nodule-free and nodule-rich sediments displayed high biodiversity with many singletons and doubletons, potentially representing rare taxa. Nodule presence negatively influenced sediment meiofaunal abundances but did not markedly affect taxonomic composition or diversity. This is the first report on CCFZ nodule crevice meiofauna, whose abundance related positively to nodule dimensions. Though dominated by the same taxa, nodules and sediments differed regarding the taxonomic and trophic composition of the meio- and nematofauna. Nevertheless, there were no taxa endemic to the nodule crevices and nodule crevice meiofauna added only little to total small-scale (similar to cm) meiofaunal abundance and diversity. We formulated environmental management recommendations at the contract area and regional (CCFZ) scale related to sampling effort, set-aside preservation and monitoring areas, and potential rehabilitation measures.}},
  articleno    = {{19996}},
  author       = {{Pape, Ellen and Campinas Bezerra, Tânia and Gheerardyn, Hendrik and Buydens, Marius and Kieswetter, Amanda and Vanreusel, Ann}},
  issn         = {{2045-2322}},
  journal      = {{SCIENTIFIC REPORTS}},
  keywords     = {{Multidisciplinary,HARPACTICOIDA CRUSTACEA,SPECIES-DIVERSITY,MARINE NEMATODES,FEEDING ECOLOGY,PATTERNS,COMMUNITIES,ASSEMBLAGES,FRAMEWORK,SEDIMENT,PROVINCE}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{15}},
  title        = {{Potential impacts of polymetallic nodule removal on deep-sea meiofauna}},
  url          = {{http://doi.org/10.1038/s41598-021-99441-3}},
  volume       = {{11}},
  year         = {{2021}},
}
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