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Mesophotic coral ecosystems in the Eastern Tropical Pacific: the current state of knowledge and the spatial variability of their depth boundaries

2022Journal article Restricted access
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dc.contributor.authorPérez-Castro, Miguel Ángel
dc.contributor.authorSchubert, Nadine
dc.contributor.authorAng-Montes de Oca, Gabriela
dc.contributor.authorLeyte-Morales, Gerardo Esteban
dc.contributor.authorEyal, Gal
dc.contributor.authorHinojosa-Arango, Gustavo
dc.date.accessioned2022-01-04T12:25:28Z
dc.date.available2022-01-04T12:25:28Z
dc.date.issued2022
dc.description.abstractIn the Eastern Tropical Pacific (ETP), Mesophotic Coral Ecosystems (MCEs) are limited by oceanographic conditions and are thought to be mostly absent. However, considering the currently discussed more flexible approach to define mesophotic boundaries, based on light availability, we performed a systematic search to assess their current state of knowledge. Using MODIS-Aqua satellite data (Kd490), we calculated the mesophotic boundaries in the ETP, based on optical depths, and performed a bibliographic search of studies carried out at those depths, including those present in turbid waters with KdPAR values up to 0.2 m-1. Seventy-seven papers on MCEs research were compiled in this review, recording a total of 138 species. The studies focus almost exclusively on taxonomy, ecosystem function, and reviews, indicating the need for future research regarding aspects, such as structuring environmental variables, molecular ecology, and natural resource management. Furthermore, remote sensing data show that there exists a high spatial variability of water transparency in the ETP, resulting in significant differences in KdPAR between oceanic and continental locations, mostly related to the occurrence of seasonal upwelling in the latter. Based on KdPAR, we estimated the mesophotic depth boundaries (z10%, z1%, z0.1%) for specific locations within the ETP and found that MCEs can potentially occur as shallow as 13-15 m in coastal regions. Also, we compared the calculated boundaries with the respective deepest records of lightdependent corals. With one exception, the presence of the corals was restricted to the upper mesophotic subzone (z10%-z1%), which agrees with reports for other regions, showing that light availability is one of the main drivers for the bathymetric distribution of MCEs and can be used as a first approach to identify their potential presence, though other local factors (e.g., geomorphology, temperature, internal waves) should also be considered, as they can cause shifts in depth limits.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.scitotenv.2021.150576pt_PT
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.1/17422
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPast and present mesophotic coral ecosystems as a predictor for survival of coral reefs in an era of climate change
dc.subjectShallow mesophotic coral ecosystemspt_PT
dc.subjectRemote sensingpt_PT
dc.subjectLight attenuation coefficientpt_PT
dc.subjectDistributionpt_PT
dc.subjectMacroalgaept_PT
dc.subjectUpwellingpt_PT
dc.titleMesophotic coral ecosystems in the Eastern Tropical Pacific: the current state of knowledge and the spatial variability of their depth boundariespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePast and present mesophotic coral ecosystems as a predictor for survival of coral reefs in an era of climate change
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/796025/EU
oaire.citation.startPage150576pt_PT
oaire.citation.titleScience of The Total Environmentpt_PT
oaire.citation.volume806pt_PT
oaire.fundingStreamH2020
person.familyNameSchubert
person.givenNameNadine
person.identifierC-6179-2009
person.identifier.ciencia-id681C-F6E1-C2FD
person.identifier.orcid0000-0001-7161-7882
person.identifier.scopus-author-id15623791900
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication9ab23589-6456-42a6-8b08-4aa40d690330
relation.isAuthorOfPublication.latestForDiscovery9ab23589-6456-42a6-8b08-4aa40d690330
relation.isProjectOfPublicationa98e1a2b-0da8-4640-8d12-9404d9bee70b
relation.isProjectOfPublication.latestForDiscoverya98e1a2b-0da8-4640-8d12-9404d9bee70b

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