Show simple item record

dc.creatorReef, Ruth
dc.creatorAtwood, Trisha B.
dc.creatorSamper Villarreal, Jimena
dc.creatorAdame, Maria Fernanda
dc.creatorSampayo, Eugenia M.
dc.creatorLovelock, Catherine E.
dc.date.accessioned2019-08-20T20:40:36Z
dc.date.available2019-08-20T20:40:36Z
dc.date.issued2017
dc.identifier.citationhttps://aslopubs.onlinelibrary.wiley.com/doi/full/10.1002/lno.10499es_ES
dc.identifier.issn0024-3590
dc.identifier.issn1939-5590
dc.identifier.urihttp://hdl.handle.net/10669/78900
dc.description.abstractSeagrasses sequester globally significant amounts of carbon (C), which is stored mainly in the sediment. BothC fixation by the seagrass (autochthonous) and the trapping of organic matter that is derived from outside theecosystem (allochthonous)contribute to seagrass sediment organic C (OC). However, due to limitations incurrent methods we do not yet fully understand which sources of C are most important to blue C ecosystems.We used environmental-DNA (eDNA) to identify and estimate the contribution of floral sources to seagrass sedi-ment OC sampled from three sites in Moreton Bay, Australia that differ in potential levels of autochthonous andallochthonous OC inputs. Using the plant barcode generbcLand a next-generation sequencing platform we iden-tified 150 plant operational taxonomic units in the sediment samples. We found that seagrass DNA composedon average 88% of the eDNA pool in the sediment samples. Allochtonous sources were primarily mangrove, salt-marsh, and freshwater marsh species, but the proportional contribution of other sources varied among meadows.Carbon and nitrogen (N) stable isotope mixing models suggested a lower autochthonous contribution than theeDNA data, but had high ambiguity due to indistinguishable isotopic values among some of the sources. Ourstudy shows that eDNA can be an effective tool for identifying sources to sediment OC in blue C ecosystems andcan be used in conjunction with stable isotope analysis to reduce ambiguity. Identifying the sources of OC to thesediments of blue C ecosystems is crucial for building robust and accurate C budgets for these systems.es_ES
dc.description.sponsorshipDiscovery Early Career Researcher Award/[DE120101706]/DECRA/Australiaes_ES
dc.language.isoen_USes_ES
dc.sourceLimnology and Oceanography; Vol 62(3)es_ES
dc.subjectAquatic plantses_ES
dc.subjectAlguees_ES
dc.subjectCoales_ES
dc.subjectOrganic carbones_ES
dc.titleUsing eDNA to determine the source of organic carbon in seagrass meadowses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.identifier.doi10.1002/lno.10499
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biologíaes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencias del Mar y Limnología (CIMAR)es_ES


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record