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dc.contributor.authorBrankovits, D.
dc.contributor.authorPohlman, J.W.
dc.contributor.authorNiemann, Helge
dc.contributor.authorLeigh, M.B.
dc.contributor.authorLeewis, M.C.
dc.contributor.authorBecker, K.W.
dc.contributor.authorIliffe, F.A.
dc.contributor.authorLehmann, M.F.
dc.contributor.authorPhillips, B.
dc.date.accessioned2018-03-13T11:17:33Z
dc.date.available2018-03-13T11:17:33Z
dc.date.issued2017-11-28
dc.description.abstractSubterranean estuaries extend inland into density-stratified coastal carbonate aquifers containing a surprising diversity of endemic animals (mostly crustaceans) within a highly oligotrophic habitat. How complex ecosystems (termed anchialine) thrive in this globally distributed, cryptic environment is poorly understood. Here, we demonstrate that a microbial loop shuttles methane and dissolved organic carbon (DOC) to higher trophic levels of the anchialine food web in the Yucatan Peninsula (Mexico). Methane and DOC production and consumption within the coastal groundwater correspond with a microbial community capable of methanotrophy, heterotrophy, and chemoautotrophy, based on characterization by 16S rRNA gene amplicon sequencing and respiratory quinone composition. Fatty acid and bulk stable carbon isotope values of cave-adapted shrimp suggest that carbon from methanotrophic bacteria comprises 21% of their diet, on average. These findings reveal a heretofore unrecognized subterranean methane sink and contribute to our understanding of the carbon cycle and ecosystem function of karst subterranean estuaries.en_US
dc.description.sponsorshipTAMU-CONACYT Cave Conservancy Foundation Texas Sea Grant College Program Texas A&M University at Galvestonen_US
dc.descriptionSource at <a href=https://doi.org/10.1038/s41467-017-01776-x> https://doi.org/10.1038/s41467-017-01776-x </a>.en_US
dc.identifier.citationBrankovits, D., Pohlman, J.W., Niemann, H., Leigh, M.B., Leewis, M.C., Becker, K.W. ... Phillips, B. (2017). Methane- and dissolved organic carbon-fueled microbial loop supports a tropical subterranean estuary ecosystem. Nature Communications, 8.en_US
dc.identifier.cristinIDFRIDAID 1519817
dc.identifier.doi10.1038/s41467-017-01776-x
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/10037/12310
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.relation.journalNature Communications
dc.relation.projectIDNorges forskningsråd: 223259en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectCarbon cycleen_US
dc.subjectEcosystem ecologyen_US
dc.subjectMarine chemistryen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Kjemi: 440::Miljøkjemi, naturmiljøkjemi: 446en_US
dc.subjectVDP::Mathematics and natural science: 400::Chemistry: 440::Environmental chemistry, natural environmental chemistry: 446en_US
dc.titleMethane- and dissolved organic carbon-fueled microbial loop supports a tropical subterranean estuary ecosystemen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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