Flow-aligned frameworks: linking benthic currents to cold-water coral mound development using 3D photogrammetry and ADCP data

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dc.contributor.authorBoolukos, Corie M. B.
dc.contributor.authorDe Clippele, Laurence H.
dc.contributor.authorHolloway, Paul
dc.contributor.authorde Oliveira, Larissa Macedo Cruz
dc.contributor.authorSummers, Gerard
dc.contributor.authorLim, Aaron
dc.contributor.funderMarine Institute
dc.contributor.funderScience Foundation Ireland, SFI, 16/IA/4528
dc.date.accessioned2026-05-28T12:50:01Z
dc.date.available2026-05-28T12:50:01Z
dc.date.issued2026-03-08
dc.description.abstractScleractinian cold-water corals (CWC) rely on benthic currents for the delivery of food and other resources that support their growth and subsequent mound development in the deep sea. However, the CWC-current relationship remains poorly understood, as current knowledge is predominantly derived from spatially constrained ex-situ experimentation and coarse-scale modeling. Therefore, we combined long-term in situ acoustic Doppler current profile measurements with high-resolution photogrammetric data to clarify CWC-current interactions at the ‘mound-scale’ and ‘framework-scale’ across 4 sites in the Moira Mounds region (Belgica Mound Province, NE Atlantic). Study sites are characterized by prevailing north-directed regional flows and N-S oscillating tidal flows. These flows are locally modified by interactions with a well-developed CWC mound (i.e., ‘mound-scale’): north-directed currents prevail, and south-directed currents are reduced at the southern flank, while the opposite occurs along the northern flank. At the finer ‘framework-scale,’ we found that frameworks align with the prevailing flows at either flank, while CWC cover declines from the northern flank (1.32%) to the southern flank (0.05%). This decline is potentially linked to weaker, less persistent north-directed flows at the southern flank compared to the stronger south-directed flows at the northern flank. These patterns did not emerge at a site containing smaller CWC features, suggesting that their development is controlled by antecedent topography. This innovative and in situ approach demonstrates, at finer spatial scales, that the growth of smaller CWC features is primarily shaped by seafloor structure, while CWCs associated with larger features such as mounds increasingly align with local hydrodynamic processes.en
dc.description.sponsorshipThe authors would like to thank Research Ireland for funding the first author’s PhD project (grant number: GOIPG/2023/4538). Further thanks to the Marine Institute for funding ship time onboard the RV Celtic Explorer under the 2020 and 2021 Ship Time Program of the National Development scheme to deploy and retrieve the benthic landers. Special thanks to all members of the research team, as well as to the crew and officers of the RV Celtic Explorer and ROV Holland 1, for their invaluable support with data acquisition. The authors would like to also acknowledge Science Foundation Ireland and Geological Survey Ireland funded project ‘MonKey_Pro’ (grant number: 16/IA/4528), which developed the benthic lander system. Lastly, many thanks to the anonymous reviewers for their constructive comments and suggestions, which helped to improve the quality of this manuscript.
dc.description.versionPublished Version
dc.format.extent17
dc.format.mimetypeapplication/pdfen
dc.identifier.authororcidBoolukos, Corie M. B.
dc.identifier.authororcidDe Clippele, Laurence H.
dc.identifier.authororcidHolloway, Paul§0000-0002-9773-4531
dc.identifier.authororcidde Oliveira, Larissa Macedo Cruz
dc.identifier.authororcidSummers, Gerard§0000-0002-5964-4746
dc.identifier.authororcidLim, Aaron§0000-0003-0451-9347
dc.identifier.citationBoolukos, C M B, De Clippele, L H, Holloway, P, de Oliveira, L M C, Summers, G & Lim, A 2026, 'Flow-aligned frameworks: linking benthic currents to cold-water coral mound development using 3D photogrammetry and ADCP data', Coral Reefs, vol. 45, no. 3, pp. 1285-1301. https://doi.org/10.1007/s00338-026-02846-7
dc.identifier.doi10.1007/s00338-026-02846-7
dc.identifier.endpage1301
dc.identifier.issn1432-0975
dc.identifier.issued3
dc.identifier.journaltitleCoral Reefs
dc.identifier.otherRIS: urn:C4894D03276BA537AA18FF97CC4C9671
dc.identifier.otherRIS: Boolukos2026
dc.identifier.otherORCID: /0000-0002-9773-4531/work/216088664
dc.identifier.otherORCID: /0000-0003-0451-9347/work/216088926
dc.identifier.startpage1285
dc.identifier.urihttps://hdl.handle.net/10468/18928
dc.identifier.volume45
dc.language.isoen
dc.publisherSpringer Nature
dc.relation.urihttps://www.scopus.com/pages/publications/105033399982
dc.rightsPublisher Copyright: © The Author(s) 2026.
dc.rights.accessrightsopen access
dc.rights.licensenameAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.statusPeer reviewed
dc.subjectBenthic currents
dc.subjectCold-water coral
dc.subjectFramework orientation
dc.subjectNE Atlantic
dc.subjectPhotogrammetry
dc.subjectSpatial distribution
dc.subjectFramework orientation
dc.titleFlow-aligned frameworks: linking benthic currents to cold-water coral mound development using 3D photogrammetry and ADCP dataen
dc.typeArticle (peer-reviewed)
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