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dc.contributor.authorAlmahasheer, Hanan
dc.contributor.authorDuarte, Carlos M.
dc.contributor.authorIrigoien, Xabier
dc.date.accessioned2018-09-03T13:25:14Z
dc.date.available2018-09-03T13:25:14Z
dc.date.issued2018-06-13
dc.identifier.citationAlmahasheer H, Duarte CM, Irigoien X (2018) Leaf Nutrient Resorption and Export Fluxes of Avicennia marina in the Central Red Sea Area. Frontiers in Marine Science 5. Available: http://dx.doi.org/10.3389/fmars.2018.00204.
dc.identifier.issn2296-7745
dc.identifier.doi10.3389/fmars.2018.00204
dc.identifier.urihttp://hdl.handle.net/10754/628457
dc.description.abstractRed Sea mangroves occur in an oligotrophic sea without permanent freshwater inputs. Understanding the mechanisms to cope with nutrient limitation is, therefore, important to understand their distribution and nutrient dynamics in coastal ecosystems. We measured total number of meristems to estimate their leaves production and nutrients (N, P, and Fe) as a function of age in Avicennia marina leaves. Then estimated resorption rates; the recovery of nutrients from senescing leaves before they are shed in a total of 91 leaf from four different mangroves stands in the Central Red Sea. We found that the concentration of N and P but not Fe declined with age. Nutrient content also declined in the older leaves with high resorption capacity of 69 and 72% in N and P vs. low resorption of 42% in Fe. The role of Fe resorption is poorly studied in plants, nevertheless, this study could provide an insight into our knowledge of iron resorption in the mangroves, which has never been assessed before. The leaf nutrient export flux from senescing leaves in monospecific stand of Avicennia marina was 9, 0.4 and 1 g m year for N, P, and Fe respectively, suggesting mangrove litter-fall to be an important source of bioavailable iron in particular, due to its low resorption, to the adjacent oligotrophic ecosystem.
dc.description.sponsorshipThe research reported in this paper was supported by King Abdullah University of Science and Technology through the baseline funding to XI and CD. We thank staff at the Coastal and Marine Resources core lab in KAUST, as well as Amr Gusti, Red Sea Research Centre, for help in the field, and Vijayalaxmi Dasari for sediment analyses.
dc.publisherFrontiers Media SA
dc.relation.urlhttps://www.frontiersin.org/articles/10.3389/fmars.2018.00204/full
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCoastal ecosystem
dc.subjectIron
dc.subjectLeaves
dc.subjectLimitation
dc.subjectMangroves
dc.subjectNitrogen
dc.subjectPhosphorous
dc.subjectRetention
dc.titleLeaf Nutrient Resorption and Export Fluxes of Avicennia marina in the Central Red Sea Area
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalFrontiers in Marine Science
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Biology, College of Science, Imam Abdulrahman Bin Faisal University (IAU), Dammam, , Saudi Arabia
dc.contributor.institutionIKERBASQUE, Basque Foundation for Science, Bilbao, , Spain
dc.contributor.institutionAZTI - Marine Research, Herrera Kaia Portualdea z/g, Pasaia (Gipuzkoa), 20110, , Spain
kaust.personDuarte, Carlos M.
kaust.personIrigoien, Xabier
refterms.dateFOA2018-09-05T12:42:08Z


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This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.