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dc.contributor.authorDuarte, Carlos M.
dc.contributor.authorDelgado-Huertas, Antonio
dc.contributor.authorAnton Gamazo, Andrea
dc.contributor.authorCarrillo-de-Albornoz, Paloma
dc.contributor.authorLópez-Sandoval, Daffne C.
dc.contributor.authorAgusti, Susana
dc.contributor.authorAlmahasheer, Hanan
dc.contributor.authorMarbá, Núria
dc.contributor.authorHendriks, Iris E.
dc.contributor.authorKrause-Jensen, Dorte
dc.contributor.authorGarcias-Bonet, Neus
dc.date.accessioned2018-09-03T13:25:56Z
dc.date.available2018-09-03T13:25:56Z
dc.date.issued2018-08-24
dc.identifier.citationDuarte CM, Delgado-Huertas A, Anton A, Carrillo-de-Albornoz P, López-Sandoval DC, et al. (2018) Stable Isotope (δ13C, δ15N, δ18O, δD) Composition and Nutrient Concentration of Red Sea Primary Producers. Frontiers in Marine Science 5. Available: http://dx.doi.org/10.3389/fmars.2018.00298.
dc.identifier.issn2296-7745
dc.identifier.doi10.3389/fmars.2018.00298
dc.identifier.urihttp://hdl.handle.net/10754/628467
dc.description.abstractMeasurements of isotopic composition of marine primary producers are a valuable tool to follow and trace the source and cycling of organic matter in the marine systems, as well to describe the physiological status of aquatic photosynthetic organisms. Although stable isotope data abounds in the literature, relatively limited information regarding the isotopic signatures of marine primary producers is available for the Red Sea. Here we present data on carbon concentration (and nitrogen when possible) of phytoplankton, macroalgae, seagrasses, mangroves and salt-marsh plants, and examine how their isotopic signatures differed among plant types across a north-south gradient in the Red Sea. We also tested the potential use of deuterium, δD, to distinguish among primary producers whose carbon isotopic values may overlap. Our findings showed a clear differentiation of carbon and nitrogen content between the different groups of primary producers, as well as between species. Seagrasses and mangroves had on average larger carbon (30 and 49% of C, respectively) and nitrogen content (1.8% N) than other groups. In terms of stable carbon isotopes, seagrasses, and macroalgae tended to be heavier (−7.3 and −13.3%0, respectively) than halophytes, mangroves, and phytoplankton, which showed statistically similar and lighter δ13C values (between −24 and −26%0). There was a tendency for the nitrogen isotopic composition of seagrass and macroalgae to become lighter from the southern to the northern Red Sea, in parallel to a decline in nitrogen concentration in the tissues, indicative of a higher dependence of nitrogen fixation as a source of nitrogen toward the more oligotrophic northern Red Sea. Our results showed an overlap in the δ13C and δ15N values between macroalgae and seagrasses; however, their δD values were significantly different (seagrasses −56.6 ± 2.8%0 and macroalgae −95.7 ± 3.4%0). This remarkable difference offers a promising alternative for ecological studies where a similar range of isotopic values could mask different potential sources.
dc.description.sponsorshipThis research was funded by King Abdullah University of Science and Technology through base-line funding to CD and SA, with references BAS/1/1071-01-01 and BAS/1/1072-01-01, and CCF funding to CD. IH was supported by a Ramon y Cajal Fellowship RYC2014-14970, cofounded by the Conselleria d'Innovació, Recerca i Turisme of the Balearic Government (Pla de ciència, tecnologia, innovació i emprenedoria 2013-2017) and the Spanish Ministry of Economy, Industry, and Competitiveness.
dc.publisherFrontiers Media SA
dc.relation.urlhttps://www.frontiersin.org/articles/10.3389/fmars.2018.00298/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(s) 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.titleStable Isotope (δ13C, δ15N, δ18O, δD) Composition and Nutrient Concentration of Red Sea Primary Producers
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.institutionInstituto Andaluz de Ciencias de la Tierra, CSIC-UGR, Armilla, Spain
dc.contributor.institutionDepartment of Biology, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
dc.contributor.institutionGlobal Change Research Group, Mediterranean Institute for Advanced Studies (IMEDEA, CSIC-UIB), Esporles, Spain
dc.contributor.institutionDepartment of Bioscience, Arctic Research Centre, Aarhus University, Aarhus, Denmark
dc.contributor.institutionDepartment of Bioscience, Aarhus University, Silkeborg, Denmark
kaust.personDuarte, Carlos M.
kaust.personAnton Gamazo, Andrea
kaust.personCarrillo-de-Albornoz, Paloma
kaust.personLopez Sandoval, Daffne
kaust.personAgusti, Susana
kaust.personGarcias-Bonet, Neus
kaust.grant.numberBAS/1/1071-01-01
kaust.grant.numberBAS/1/1072-01-01
dc.relation.issupplementedbyDOI:10.1594/pangaea.892848
refterms.dateFOA2018-09-04T13:09:46Z
display.relations<b>Is Supplemented By:</b><br/> <ul><li><i>[Dataset]</i> <br/> Anton, A., Delgado Huertas, A., Carrillo-de-Albornoz, P., López-Sandoval, D. C., Agustí, S., Almahasheer, H., Marbà, N., Hendriks, I., Krause-Jensen, D., Garcias-Bonet, N., &amp; Duarte, C. M. (2018). <i>Stable Isotope (δ13C, δ15N, δ18O,δD) composition and nutrient concentration of Red Sea primary producers, supplement to: Duarte, Carlos Manuel; Delgado-Huertas, Antonio; Anton, Andrea; Carrillo-de-Albornoz, Paloma; López-Sandoval, Daffne C; Agustí, Susana; Almahasheer, Hanan; Marbà, Núria; Hendriks, Iris; Krause-Jensen, Dorte; Garcias-Bonet, Neus (2018): Stable isotope (δ13C, δ15N, δ18O, δD) composition and nutrient concentration of Red Sea primary producers. Frontiers in Marine Science, 5</i> [Data set]. PANGAEA - Data Publisher for Earth &amp; Environmental Science. https://doi.org/10.1594/PANGAEA.892848. DOI: <a href="https://doi.org/10.1594/pangaea.892848" >10.1594/pangaea.892848</a> Handle: <a href="http://hdl.handle.net/10754/664139" >10754/664139</a></a></li></ul>


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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(s) 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(s) 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.