Coastal hypoxia and the importance of benthic macrofauna communities for ecosystem functioning

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dc.contributor.author Gammal, Johanna
dc.contributor.author Norkko, Joanna
dc.contributor.author Pilditch, Conrad A.
dc.contributor.author Norkko, Alf
dc.date.accessioned 2019-11-27T15:11:01Z
dc.date.available 2019-11-27T15:11:01Z
dc.date.issued 2017-03
dc.identifier.citation Gammal , J , Norkko , J , Pilditch , C A & Norkko , A 2017 , ' Coastal hypoxia and the importance of benthic macrofauna communities for ecosystem functioning ' , Estuaries and Coasts , vol. 40 , no. 2 , pp. 457-468 . https://doi.org/10.1007/s12237-016-0152-7
dc.identifier.other PURE: 83431628
dc.identifier.other PURE UUID: 8c5f387c-b2dd-4dbe-b896-defddbdcc9b6
dc.identifier.other WOS: 000398099100010
dc.identifier.other Scopus: 84983430143
dc.identifier.other ORCID: /0000-0001-9885-8408/work/41848260
dc.identifier.uri http://hdl.handle.net/10138/307556
dc.description.abstract Coastal 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. en
dc.format.extent 12
dc.language.iso eng
dc.relation.ispartof Estuaries and Coasts
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject Benthic macrofauna
dc.subject Ecosystem functioning
dc.subject Nutrient fluxes
dc.subject Hypoxia
dc.subject Coastal zone
dc.subject Baltic Sea
dc.subject POLYCHAETES MARENZELLERIA SPP.
dc.subject NORTHERN BALTIC SEA
dc.subject MARINE-SEDIMENTS
dc.subject ORGANIC-MATTER
dc.subject CHESAPEAKE BAY
dc.subject ARCHIPELAGO SEA
dc.subject NUTRIENT FLUXES
dc.subject BIODIVERSITY
dc.subject OXYGEN
dc.subject ANOXIA
dc.subject 1172 Environmental sciences
dc.title Coastal hypoxia and the importance of benthic macrofauna communities for ecosystem functioning en
dc.type Article
dc.contributor.organization Tvärminne Zoological Station
dc.contributor.organization Marine Ecosystems Research Group
dc.contributor.organization Tvärminne Benthic Ecology Team
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1007/s12237-016-0152-7
dc.relation.issn 1559-2723
dc.rights.accesslevel openAccess
dc.type.version acceptedVersion

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