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dc.contributor.authorGammal, Johannaen_NZ
dc.contributor.authorNorkko, Joannaen_NZ
dc.contributor.authorPilditch, Conrad A.en_NZ
dc.contributor.authorNorkko, Alfen_NZ
dc.date.accessioned2022-02-22T23:03:56Z
dc.date.available2022-02-22T23:03:56Z
dc.date.issued2017en_NZ
dc.identifier.issn1559-2723en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/14753
dc.description.abstractCoastal ecosystems are important because of the vital ecosystem functions and services they provide, but many are threatened by eutrophication and hypoxia. This results in loss of biodiversity and subsequent changes in ecosystem functioning. Consequently, the need for empirical field studies regarding biodiversity-ecosystem functioning in coastal areas has been emphasized. The present field study quantified the links between benthic macrofaunal communities (abundance, biomass, and species richness), sediment oxygen consumption, and solute fluxes (NO₃ ⁻ + NO₂⁻, NH₄⁺, PO₄³⁻, SiO₄, Fe, Mn) along a 7.5-km natural gradient of seasonal hypoxia in the coastal northern Baltic Sea. Sampling was done in late August 2010 in the middle archipelago zone of the Hanko peninsula, Finland. As predicted, the macrofaunal communities were decimated with increasing hypoxia, and the nutrient transformation processes were changed at the sediment-water interface, with notably higher effluxes of phosphate and ammonium from the sediment. Solute fluxes varied even during normoxia, which implies a high context-dependency, and could be explained by even small variations in environmental variables such as organic matter and C/N ratios. Importantly, the low diversity benthic macrofaunal communities, which were dominated by Macoma balthica and the invasive Marenzelleria spp., had a large influence on the solute fluxes, especially under normoxia, but also under hypoxia.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherSpringeren_NZ
dc.rightsThis is the AUTHORS’ ACCEPTED MANUSCRIPT, for the published article, please see: https://link.springer.com/article/10.1007/s12237-016-0152-7
dc.subjectScience & Technologyen_NZ
dc.subjectLife Sciences & Biomedicineen_NZ
dc.subjectEnvironmental Sciencesen_NZ
dc.subjectMarine & Freshwater Biologyen_NZ
dc.subjectEnvironmental Sciences & Ecologyen_NZ
dc.subjectBenthic macrofaunaen_NZ
dc.subjectEcosystem functioningen_NZ
dc.subjectNutrient fluxesen_NZ
dc.subjectHypoxiaen_NZ
dc.subjectCoastal zoneen_NZ
dc.subjectBaltic Seaen_NZ
dc.subjectPOLYCHAETES MARENZELLERIA SPP.en_NZ
dc.subjectORGANIC-MATTERen_NZ
dc.subjectBALTIC SEAen_NZ
dc.subjectARCHIPELAGO SEAen_NZ
dc.subjectNUTRIENT FLUXESen_NZ
dc.subjectCHESAPEAKE BAYen_NZ
dc.subjectMARINEen_NZ
dc.subjectBIODIVERSITYen_NZ
dc.subjectOXYGENen_NZ
dc.subjectANOXIAen_NZ
dc.titleCoastal hypoxia and the importance of benthic macrofauna communities for ecosystem functioningen_NZ
dc.typeJournal Article
dc.identifier.doi10.1007/s12237-016-0152-7en_NZ
dc.relation.isPartOfEstuaries and Coastsen_NZ
pubs.begin-page457
pubs.elements-id141949
pubs.end-page468
pubs.issue2en_NZ
pubs.publication-statusPublisheden_NZ
pubs.volume40en_NZ
dc.identifier.eissn1559-2731en_NZ


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