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dc.contributor.authorAmon, Diva
dc.contributor.authorZiegler, AF
dc.contributor.authorDahlgren, TG
dc.contributor.authorGlover, AG
dc.contributor.authorGoineau, A
dc.contributor.authorGooday, AJ
dc.contributor.authorWiklund, H
dc.contributor.authorSmith, CR
dc.identifier.citationAmon, D., Ziegler, A., Dahlgren, T. et al. Insights into the abundance and diversity of abyssal megafauna in a polymetallic-nodule region in the eastern Clarion-Clipperton Zone. Sci Rep 6, 30492 (2016).en_US
dc.description.abstractThere is growing interest in mining polymetallic nodules in the abyssal Clarion-Clipperton Zone (CCZ) in the Pacific. Nonetheless, benthic communities in this region remain poorly known. The ABYSSLINE Project is conducting benthic biological baseline surveys for the UK Seabed Resources Ltd. exploration contract area (UK-1) in the CCZ. Using a Remotely Operated Vehicle, we surveyed megafauna at four sites within a 900 km2 stratum in the UK-1 contract area, and at a site ~250 km east of the UK-1 area, allowing us to make the first estimates of abundance and diversity. We distinguished 170 morphotypes within the UK-1 contract area but species-richness estimators suggest this could be as high as 229. Megafaunal abundance averaged 1.48 ind. m−2. Seven of 12 collected metazoan species were new to science, and four belonged to new genera. Approximately half of the morphotypes occurred only on polymetallic nodules. There were weak, but statistically significant, positive correlations between megafaunal and nodule abundance. Eastern-CCZ megafaunal diversity is high relative to two abyssal datasets from other regions, however comparisons with CCZ and DISCOL datasets are problematic given the lack of standardised methods and taxonomy. We postulate that CCZ megafaunal diversity is driven in part by habitat heterogeneity.en_US
dc.titleInsights into the abundance and diversity of abyssal megafauna in a polymetallic-nodule region in the eastern Clarion-Clipperton Zoneen_US
dc.typeJournal Articleen_US
dc.identifier.journalScientific Reportsen_US
pubs.organisational-group/Natural History Museum
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pubs.organisational-group/Natural History Museum/Science Group/Functional groups/Research/LS Research
pubs.organisational-group/Natural History Museum/Science Group/Life Sciences
dc.embargoNot knownen_US
elements.import.authorAmon, DJen_US
elements.import.authorZiegler, AFen_US
elements.import.authorDahlgren, TGen_US
elements.import.authorGlover, AGen_US
elements.import.authorGoineau, Aen_US
elements.import.authorGooday, AJen_US
elements.import.authorWiklund, Hen_US
elements.import.authorSmith, CRen_US
dc.description.nhmThis open access work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
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