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dc.contributor.authorGarzon-Garcia, A
dc.contributor.authorBurton, JM
dc.contributor.authorLewis, S
dc.contributor.authorBainbridge, Z
dc.contributor.authorDe Hayr, R
dc.contributor.authorMoody, P
dc.contributor.authorBrodie, J
dc.date.accessioned2021-10-11T06:16:23Z
dc.date.available2021-10-11T06:16:23Z
dc.date.issued2021
dc.identifier.issn0025-326X
dc.identifier.doi10.1016/j.marpolbul.2021.112910
dc.identifier.urihttp://hdl.handle.net/10072/408816
dc.description.abstractThis study quantified the bioavailable nitrogen contribution from riverine plumes to Great Barrier Reef (GBR) coastal environments. The potential bioavailable nitrogen from two Dry Tropics riverine plumes was considerable [9 - 30% added to the end-of-catchment dissolved inorganic nitrogen (DIN) load]. Particulate inorganic nitrogen conversion to DIN was an important process in short timeframes (25% to 100% of the generated load). The remaining load was contributed by microbial mineralisation of organic nitrogen. Flood plume sediment has potential to generate nitrogen once deposited and/or resuspended. Nitrogen generation was insignificant in a few plumes where immobilisation of nitrogen in bacteria biomass occurred. The source of organic matter in the plumes and availability of nitrogen relative to organic matter were important determinants of mineralisation/immobilisation. This research demonstrates that riverine plumes have potential to be considerable sources of bioavailable nitrogen to coastal environments of the GBR and that organic matter is a key bioavailability driver.
dc.description.peerreviewedYes
dc.languageeng
dc.publisherElsevier BV
dc.relation.ispartofpagefrom112910
dc.relation.ispartofissuePt A
dc.relation.ispartofjournalMarine Pollution Bulletin
dc.relation.ispartofvolume173
dc.subject.fieldofresearchPollution and contamination
dc.subject.fieldofresearchEnvironmental biogeochemistry
dc.subject.fieldofresearchBiological oceanography
dc.subject.fieldofresearchChemical oceanography
dc.subject.fieldofresearchcode4105
dc.subject.fieldofresearchcode410501
dc.subject.fieldofresearchcode370801
dc.subject.fieldofresearchcode370802
dc.subject.keywordsBioavailability
dc.subject.keywordsGreat Barrier Reef
dc.subject.keywordsNutrients
dc.subject.keywordsOrganic matter
dc.subject.keywordsPlumes
dc.titleThe bioavailability of nitrogen associated with sediment in riverine plumes of the Great Barrier Reef
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationGarzon-Garcia, A; Burton, JM; Lewis, S; Bainbridge, Z; De Hayr, R; Moody, P; Brodie, J, The bioavailability of nitrogen associated with sediment in riverine plumes of the Great Barrier Reef, Marine Pollution Bulletin, 2021, 173 (Pt A), pp. 112910
dcterms.dateAccepted2021-08-23
dc.date.updated2021-10-06T00:08:25Z
gro.hasfulltextNo Full Text
gro.griffith.authorGarzon Garcia, Alexandra
gro.griffith.authorBurton, Joanne


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