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Rhodolith beds in the eastern tropical pacific: habitat structure and associated biodiversity

2025-11Journal article Restricted access
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dc.contributor.authorDiaz-Licona, Celeste A.
dc.contributor.authorSchubert, Nadine
dc.contributor.authorGonzález-Gamboa, Vladimir
dc.contributor.authorTuya, Fernando
dc.contributor.authorAzofeifa-Solano, Juan Carlos
dc.contributor.authorFernández-García, Cindy
dc.date.accessioned2025-07-25T10:36:25Z
dc.date.available2025-07-25T10:36:25Z
dc.date.issued2025-11
dc.description.abstractRhodolith beds (RBs) are globally distributed marine benthic habitats and recognized biodiversity hotspots of conservation interest. However, considerable regions of the world's oceans remain unknown in terms of the presence, distribution, structure, and associated biodiversity of such habitats. In the Eastern Tropical Pacific (ETP), even basic information about these habitats is still extremely scarce. To fill this gap, we characterized the habitat structure and associated biodiversity of four shallow-water RBs at Cocos Island, Costa Rica. Specifically, information regarding rhodolith structural attributes (size, morphology, and CaCO3 content), as well as habitat characteristics (rhodolith nodule density, biomass and CaCO3 standing stocks) were collected. Moreover, the diversity and abundance of associated organisms, including macroalgae, invertebrates and fishes, were determined. Our study shows that Cocos Island harbors dense RBs (1100 to >4500 nodules m(-2)) with substantial carbonate stocks (14-22 kg m(-2)), which provide habitats for a wide array of species (158 recorded species). This study adds 58 new records of RB-associated species to previously published records for the island, which increases the total number of species to 316, including 51 species endemic to the ETP and four species categorized as vulnerable by the IUCN. Our results also indicate that community composition and abundance of organisms vary among RBs, likely due to differences in rhodolith morphologies and sizes and/or local environmental conditions. Further research efforts are warranted to identify the drivers for these differences, as well as expanding studies towards other RBs at Cocos Island and in the ETP in general.eng
dc.identifier.doi10.1016/j.aquabot.2025.103914
dc.identifier.issn0304-3770
dc.identifier.urihttp://hdl.handle.net/10400.1/27494
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationPresent-day and future net carbon source-sink dynamics of rhodolith beds: Implications for climate change mitigation
dc.relation.ispartofAquatic Botany
dc.rights.uriN/A
dc.subjectBiodiversity
dc.subjectCoralline algal beds
dc.subjectCosta Rica Eastern
dc.subjectTropical Pacific
dc.subjectHabitat structure
dc.subjectRhodoliths
dc.titleRhodolith beds in the eastern tropical pacific: habitat structure and associated biodiversityeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitlePresent-day and future net carbon source-sink dynamics of rhodolith beds: Implications for climate change mitigation
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 3ed/2020.01282.CEECIND%2FCP1597%2FCT0003/PT
oaire.citation.startPage103914
oaire.citation.titleAquatic Botany
oaire.citation.volume201
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 3ed
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
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/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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