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dc.contributor.authorTreible, Laura M
dc.contributor.authorPitt, Kylie A
dc.contributor.authorKlein, Shannon G
dc.contributor.authorCondon, Robert H
dc.date.accessioned2019-05-29T12:37:17Z
dc.date.available2019-05-29T12:37:17Z
dc.date.issued2018
dc.identifier.issn0171-8630
dc.identifier.doi10.3354/meps12298
dc.identifier.urihttp://hdl.handle.net/10072/380713
dc.description.abstractEutrophication-induced hypoxia is one of the primary anthropogenic threats to coastal ecosystems. Under hypoxic conditions, a deficit of O2 and a surplus of CO2 will concurrently decrease pH, yet studies of hypoxia have seldom considered the potential interactions with elevated pCO2 (reduced pH). Previous studies on gelatinous organisms concluded that they are fairly robust to low oxygen and reduced pH conditions individually, yet the combination of stressors has only been examined for ephyrae. The goals of this study were to determine the individual and interactive effects of hypoxia and elevated pCO2 on the asexual reproduction and aerobic respiration rates of polyps of the scyphozoan Aurelia aurita during a manipulative experiment that ran for 36 d. pCO2 and pO2 were varied on a diel basis to closely mimic the diel conditions observed in the field. Exposure to low dissolved oxygen (DO) reduced asexual budding of polyps by ~50% relative to control conditions. Under hypoxic conditions, rates of respiration were elevated during an initial acclimation period (until Day 8), but respiration rates did not differ between DO levels under prolonged exposure. There was no significant effect of increased pCO2 on either asexual reproduction or aerobic respiration, suggesting that elevated pCO2 (reduced pH) did not exacerbate the negative reproductive effects of hypoxia on A. aurita polyps.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherInter-Research
dc.publisher.placeGermany
dc.relation.ispartofpagefrom129
dc.relation.ispartofpageto139
dc.relation.ispartofjournalMarine Ecology Progress Series
dc.relation.ispartofvolume591
dc.subject.fieldofresearchOceanography
dc.subject.fieldofresearchBiological oceanography
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchcode3708
dc.subject.fieldofresearchcode370801
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode3109
dc.titleExposure to elevated pCO2 does not exacerbate reproductive suppression of Aurelia aurita jellyfish polyps in low oxygen environments
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.description.versionVersion of Record (VoR)
gro.facultyGriffith Sciences, Australian Rivers Institute
gro.rights.copyright© The Author(s) 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorPitt, Kylie A.
gro.griffith.authorKlein, Shannon
gro.griffith.authorTreible, Laura


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