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dc.contributor.authorMangan, Stephanieen_NZ
dc.contributor.authorLohrer, Andrew M.en_NZ
dc.contributor.authorThrush, Simon F.en_NZ
dc.contributor.authorPilditch, Conrad A.en_NZ
dc.date.accessioned2021-03-02T21:03:35Z
dc.date.available2021-03-02T21:03:35Z
dc.date.issued2020en_NZ
dc.identifier.citationMangan, S., Lohrer, A. M., Thrush, S. F., & Pilditch, C. A. (2020). Water column turbidity not sediment nutrient enrichment moderates microphytobenthic primary production. Journal of Marine Science and Engineering, 8(10). https://doi.org/10.3390/jmse8100732en
dc.identifier.urihttps://hdl.handle.net/10289/14146
dc.description.abstractSoft sediment intertidal habitats are under intense anthropogenic pressure resulting from increased land derived sediment and nutrient delivery. Long term, this can cause high water column turbidity and nutrient enrichment of sediment porewaters, which has cascading effects on coastal ecosystem functionality. However, how these stressors may interact and influence benthic productivity over alternating periods of submergence and emergence is largely unknown. This study investigates the effects of sediment nutrient enrichment (at three levels for 20 months) on benthic primary production at six sites in four New Zealand estuaries that spanned a gradient in water column turbidity. While nutrient enrichment had no detectable effect on microphytobenthic primary production, water column turbidity had a significant influence, explaining up to 40% of variability during tidal submergence, followed by temperature and sediment characteristics. In addition, negative net primary production (NPP) estimates and therefore net heterotrophy for the most turbid estuaries during tidal submergence resulted in an increased reliance on production during emerged periods, where NPP was positive across all sites. This study highlights the prominent role of water column turbidity over nutrient enrichment in moderating microphytobenthic production, and the increasing importance of emerged periods to maintain the health and functioning of coastal habitats.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherMDPIen_NZ
dc.rights© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.subjectScience & Technologyen_NZ
dc.subjectTechnologyen_NZ
dc.subjectPhysical Sciencesen_NZ
dc.subjectEngineering, Marineen_NZ
dc.subjectEngineering, Oceanen_NZ
dc.subjectOceanographyen_NZ
dc.subjectEngineeringen_NZ
dc.subjectmicrophytobenthosen_NZ
dc.subjectlighten_NZ
dc.subjectnutrientsen_NZ
dc.subjectintertidalen_NZ
dc.subjecteutrophicationen_NZ
dc.subjectestuaryen_NZ
dc.subjectmarineen_NZ
dc.subjectNew Zealanden_NZ
dc.subjectBENTHIC PRIMARY PRODUCTIONen_NZ
dc.subjectIN-SITU MEASUREMENTSen_NZ
dc.subjectENGLISH-CHANNELen_NZ
dc.subjectINTERTIDAL MICROPHYTOBENTHOSen_NZ
dc.subjectLIGHT AVAILABILITYen_NZ
dc.subjectMARINE HABITATSen_NZ
dc.subjectECOLOGICAL ROLEen_NZ
dc.subjectSECRET GARDENen_NZ
dc.subjectEUTROPHICATIONen_NZ
dc.subjectEMERSIONen_NZ
dc.titleWater column turbidity not sediment nutrient enrichment moderates microphytobenthic primary productionen_NZ
dc.typeJournal Article
dc.identifier.doi10.3390/jmse8100732en_NZ
dc.relation.isPartOfJournal of Marine Science and Engineeringen_NZ
pubs.elements-id257892
pubs.issue10en_NZ
pubs.publication-statusPublisheden_NZ
pubs.volume8en_NZ
dc.identifier.eissn2077-1312en_NZ
uow.identifier.article-noARTN 732


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