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Contribution of the seagrass Syringodium isoetifolium to the metabolic functioning of a tropical reef lagoon

2022Journal article Open access
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dc.contributor.authorOlivé, Irene
dc.contributor.authorGarcía-Robledo, Emilio
dc.contributor.authorSilva, João
dc.contributor.authorPintado-Herrera, Marina G.
dc.contributor.authorSantos, Rui
dc.contributor.authorKamenos, Nicholas A.
dc.contributor.authorCuet, Pascale
dc.contributor.authorFrouin, Patrick
dc.date.accessioned2022-12-19T16:08:23Z
dc.date.available2022-12-19T16:08:23Z
dc.date.issued2022
dc.description.abstractSeagrasses are gaining attention thanks to their metabolism and potential major role as carbon sinks, with further implications as nature-based solutions against climate change. Despite their recognized importance and the growing number of studies published, there is still a striking paucity of information on seagrass metabolism and contribution to biogeochemical cycles for some seagrass species and ocean areas. In this study we assessed the metabolic balance and nutrient cycling contribution of seagrasses to the benthic compartment of a tropical reef lagoon in Reunion Island, providing original information on a barely studied seagrass species (Syringodium isoetifolium) and a poorly studied ocean region (West Indian Ocean). We measured the net productivity, respiration and the metabolic balance in different components of the lagoon benthic compartment (i.e. seagrass, sediment, and benthic community) and the water-sediment nutrient benthic fluxes at differently impacted sites within the lagoon. The biogeochemical environmental variability, including inorganic and organic indicators of anthropogenic contamination, was also assessed at each site.Large spatial variability was detected in the metabolic balance of each benthic component assessed, also associated with the natural and/or anthropic-driven environmental variability found in the lagoon. The seagrass S. isoetifolium was net autotrophic across the lagoon and contributed to the lagoon benthic metabolism with net plant productivity exceeding by one order of magnitude the plant respiration. The lowest seagrass metabolism was detected at the impacted site. The metabolic balance of the sediment was heterotrophic but the high productivity of S. isoetifolium contributed to reducing the heterotrophy of the whole benthic community. The lagoon-wide benthic metabolic balance was slightly heterotrophic, but the associated uncertainty ranged from autotrophy to heterotrophy. Nutrient concentrations in the lagoon were low and the benthic community capacity for nutrient retention (uptake) and removal (denitrification and anammox) indicated potential for buffering moderate nutrient inputs into the lagoon. Organic contaminants of emerging concern (CECs) were low but detectable in the lagoon, especially in highly frequented beach areas, arising as an environmental quality indicator of interest.pt_PT
dc.description.sponsorshipFEDER-UCA18-107225
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/fmars.2022.867986pt_PT
dc.identifier.eissn2296-7745
dc.identifier.urihttp://hdl.handle.net/10400.1/18667
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Media SApt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.relationEnvironmental Research Infrastructures Providing Shared Solutions for Science and Society
dc.relationCentre for Marine and Environmental Research
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBenthic communitypt_PT
dc.subjectMetabolic balancept_PT
dc.subjectNutrient fluxespt_PT
dc.subjectProductivitypt_PT
dc.subjectReef lagoonpt_PT
dc.subjectRespirationpt_PT
dc.subjectSeagrasspt_PT
dc.titleContribution of the seagrass Syringodium isoetifolium to the metabolic functioning of a tropical reef lagoonpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleEnvironmental Research Infrastructures Providing Shared Solutions for Science and Society
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/654182/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.titleFrontiers in Marine Sciencept_PT
oaire.citation.volume9pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamH2020
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSilva
person.familyNamePeres dos Santos
person.givenNameJoão
person.givenNameRui Pedro
person.identifier82814
person.identifier.ciencia-id8216-527E-1BD4
person.identifier.ciencia-id2912-6AF4-751A
person.identifier.orcid0000-0002-7211-1661
person.identifier.ridJ-7874-2013
person.identifier.scopus-author-id7403023547
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication61040b53-b17a-40f6-b42e-f5476a7a6ddb
relation.isAuthorOfPublication96bc4f1c-6666-4891-882a-c781e5b46825
relation.isAuthorOfPublication.latestForDiscovery61040b53-b17a-40f6-b42e-f5476a7a6ddb
relation.isProjectOfPublication15f91d45-e070-47d8-b6b8-efd4de31d9a8
relation.isProjectOfPublication8c68b47a-96df-4ef5-abb2-6f16514891b8
relation.isProjectOfPublication794d4c77-c731-471e-bc96-5a41dcd3d872
relation.isProjectOfPublication.latestForDiscovery8c68b47a-96df-4ef5-abb2-6f16514891b8

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