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Nutrition of the seagrass Cymodocea nodosa: pulses of ammonium but not of phosphate are crucial to sustain the species growth

2020Journal article Restricted access
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dc.contributor.authorAlexandre, Ana
dc.contributor.authorSantos, Rui
dc.date.accessioned2020-07-28T13:42:38Z
dc.date.available2022-06-02T00:30:16Z
dc.date.issued2020
dc.description.abstractWe investigated the nutrient acquisition of the seagrass Cymodocea nodosa and the importance of sediment to water column nutrient pulses, which regularly occur in coastal lagoons forced by incoming flood tides. Ammonium was preferentially taken up and accounted for 60-90% of the total daily N acquisition, whereas amino acid acquisition through belowground plant parts represented the second most important source of N, accounting 8-34%. The uptake of ammonium pulses increased dramatically the daily N acquisition from 9.5 mmol m-2 day-1 to 1.33 mmol m-2 day-1 at ambient nutrient concentrations, enabling the species to meet its N demand. Roots accounted for 96% of the total phosphate acquisition, with no evidence for P limitation. The ability of seagrasses to adapt to nutrient pulses may be an overlooked nutrition strategy common to many ecosystems where nutrient availability in the water column is low but nutrient pulses occur.pt_PT
dc.description.sponsorshipPortuguese national funds from FCT -Foundation for Science and Technology UIDB/04326/2020 PTDC/MAR-EST/3223/2014 DL 57/2016/CP1361/CT0001pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.marenvres.2020.104954pt_PT
dc.identifier.issn0141-1136
dc.identifier.urihttp://hdl.handle.net/10400.1/14535
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationEFFECTS OF OCEAN ACIDIFICATION ON THE NITROGEN BUDGET OF SEAGRASSES: ROLE OF ORGANIC VS. INORGANIC SOURCES
dc.subjectCymodocea nodosapt_PT
dc.subjectTranslocationpt_PT
dc.subjectInorganic nitrogenpt_PT
dc.subjectUptakept_PT
dc.subjectOrganic nitrogenpt_PT
dc.subjectRia formosapt_PT
dc.subjectPhosphoruspt_PT
dc.subjectSeagrassespt_PT
dc.titleNutrition of the seagrass Cymodocea nodosa: pulses of ammonium but not of phosphate are crucial to sustain the species growthpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEFFECTS OF OCEAN ACIDIFICATION ON THE NITROGEN BUDGET OF SEAGRASSES: ROLE OF ORGANIC VS. INORGANIC SOURCES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F91629%2F2012/PT
oaire.citation.startPage104954pt_PT
oaire.citation.titleMarine Environmental Researchpt_PT
oaire.citation.volume158pt_PT
person.familyNameAlexandre
person.familyNameSantos
person.givenNameAna
person.givenNameRui
person.identifier42560
person.identifier.ciencia-idA711-4AF6-8F36
person.identifier.ciencia-id9B18-444D-2244
person.identifier.orcid0000-0001-7164-1487
person.identifier.orcid0000-0002-7861-4366
person.identifier.ridB-4168-2008
person.identifier.scopus-author-id35836826900
person.identifier.scopus-author-id7201375018
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc907d7fb-323d-4227-84b7-f46c150d05f4
relation.isAuthorOfPublication84487ca8-404a-4584-81f0-3662c340d712
relation.isAuthorOfPublication.latestForDiscoveryc907d7fb-323d-4227-84b7-f46c150d05f4
relation.isProjectOfPublication183ff0cd-c94c-4b5b-9c6c-97c7e3cc4697
relation.isProjectOfPublication.latestForDiscovery183ff0cd-c94c-4b5b-9c6c-97c7e3cc4697

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