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A local scale analysis of manganese nodules influence on the Clarion-Clipperton Fracture Zone macrobenthos

Pasotti Francesca, Lisa Mevenkamp (UGent) , Ellen Pape (UGent) , Magdalena Błażewicz, Paulo Bonifácio, Torben Riehl, Bart De Smet, Nene Lefaible (UGent) , Lidia Lins Pereira (UGent) and Ann Vanreusel (UGent)
(2021) DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS. 168.
Author
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Abstract
The present investigation focuses on the Global Sea Mineral Resources contract area B4S03 site in the Clarion-Clipperton Fracture Zone nodule fields. We investigated the sedimentary characteristics and the higher-taxon (order/class) and lower-taxon (family, morphospecies) diversity of the soft sediment macrobenthos with special focus on the dominant taxa (Isopoda, Polychaeta, Tanaidacea) in relation to nodule abundance. Across all analyses no consistent and/or significant differences between the two nodule-rich and the nodule free stations were found in terms of abiotic or biotic factors, suggesting that both habitat-types have similar sedimentary conditions and that macrofauna is represented by comparable densities and higher-taxon diversity across stations. Rarefaction/accumulation curves and sample coverage analysis shows that the current sampling effort was insufficient to characterize the B4S03 site diversity at morphospecies level but covered >90% of the diversity at the family level for the three dominant taxa. The high number of singletons encountered, the patchiness and low densities of the investigated taxa coupled to the logistically limited potential for replication per habitat/station, may point to under-sampling bias of the current study with the risk to underestimate species diversity and overestimate endemism. We recommend a more extensive sampling with the combination of molecular tools coupled with taxonomical expertise.
Keywords
Aquatic Science, Oceanography, SPECIES-DIVERSITY, PACIFIC-OCEAN, SEA-FLOOR, EQUATORIAL PACIFIC, ORGANIC-MATTER, DEEP, ABUNDANCE, CRUSTACEA, SEDIMENTS, FAUNA Author Information

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MLA
Francesca, Pasotti, et al. “A Local Scale Analysis of Manganese Nodules Influence on the Clarion-Clipperton Fracture Zone Macrobenthos.” DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, vol. 168, 2021, doi:10.1016/j.dsr.2020.103449.
APA
Francesca, P., Mevenkamp, L., Pape, E., Błażewicz, M., Bonifácio, P., Riehl, T., … Vanreusel, A. (2021). A local scale analysis of manganese nodules influence on the Clarion-Clipperton Fracture Zone macrobenthos. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, 168. https://doi.org/10.1016/j.dsr.2020.103449
Chicago author-date
Francesca, Pasotti, Lisa Mevenkamp, Ellen Pape, Magdalena Błażewicz, Paulo Bonifácio, Torben Riehl, Bart De Smet, Nene Lefaible, Lidia Lins Pereira, and Ann Vanreusel. 2021. “A Local Scale Analysis of Manganese Nodules Influence on the Clarion-Clipperton Fracture Zone Macrobenthos.” DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 168. https://doi.org/10.1016/j.dsr.2020.103449.
Chicago author-date (all authors)
Francesca, Pasotti, Lisa Mevenkamp, Ellen Pape, Magdalena Błażewicz, Paulo Bonifácio, Torben Riehl, Bart De Smet, Nene Lefaible, Lidia Lins Pereira, and Ann Vanreusel. 2021. “A Local Scale Analysis of Manganese Nodules Influence on the Clarion-Clipperton Fracture Zone Macrobenthos.” DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 168. doi:10.1016/j.dsr.2020.103449.
Vancouver
1.
Francesca P, Mevenkamp L, Pape E, Błażewicz M, Bonifácio P, Riehl T, et al. A local scale analysis of manganese nodules influence on the Clarion-Clipperton Fracture Zone macrobenthos. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS. 2021;168.
IEEE
[1]
P. Francesca et al., “A local scale analysis of manganese nodules influence on the Clarion-Clipperton Fracture Zone macrobenthos,” DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, vol. 168, 2021.
@article{8698227,
  abstract     = {{The present investigation focuses on the Global Sea Mineral Resources contract area B4S03 site in the Clarion-Clipperton Fracture Zone nodule fields. We investigated the sedimentary characteristics and the higher-taxon (order/class) and lower-taxon (family, morphospecies) diversity of the soft sediment macrobenthos with special focus on the dominant taxa (Isopoda, Polychaeta, Tanaidacea) in relation to nodule abundance. Across all analyses no consistent and/or significant differences between the two nodule-rich and the nodule free stations were found in terms of abiotic or biotic factors, suggesting that both habitat-types have similar sedimentary conditions and that macrofauna is represented by comparable densities and higher-taxon diversity across stations. Rarefaction/accumulation curves and sample coverage analysis shows that the current sampling effort was insufficient to characterize the B4S03 site diversity at morphospecies level but covered >90% of the diversity at the family level for the three dominant taxa. The high number of singletons encountered, the patchiness and low densities of the investigated taxa coupled to the logistically limited potential for replication per habitat/station, may point to under-sampling bias of the current study with the risk to underestimate species diversity and overestimate endemism. We recommend a more extensive sampling with the combination of molecular tools coupled with taxonomical expertise.}},
  articleno    = {{103449}},
  author       = {{Francesca, Pasotti and Mevenkamp, Lisa and Pape, Ellen and Błażewicz, Magdalena and Bonifácio, Paulo and Riehl, Torben and De Smet, Bart and Lefaible, Nene and Lins Pereira, Lidia and Vanreusel, Ann}},
  issn         = {{0967-0637}},
  journal      = {{DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS}},
  keywords     = {{Aquatic Science,Oceanography,SPECIES-DIVERSITY,PACIFIC-OCEAN,SEA-FLOOR,EQUATORIAL PACIFIC,ORGANIC-MATTER,DEEP,ABUNDANCE,CRUSTACEA,SEDIMENTS,FAUNA  Author Information}},
  language     = {{eng}},
  pages        = {{15}},
  title        = {{A local scale analysis of manganese nodules influence on the Clarion-Clipperton Fracture Zone macrobenthos}},
  url          = {{http://doi.org/10.1016/j.dsr.2020.103449}},
  volume       = {{168}},
  year         = {{2021}},
}
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