Seasonal variation in nitrification and nitrate-reduction pathways in coastal sediments in the Gulf of Finland, Baltic Sea

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dc.contributor.author Jäntti, Helena
dc.contributor.author Stange, Florian
dc.contributor.author Leskinen, Elina
dc.contributor.author Hietanen, Susanna
dc.date.accessioned 2011-10-14T08:30:01Z
dc.date.available 2011-10-14T08:30:01Z
dc.date.issued 2011-04-26
dc.identifier.citation Jäntti , H , Stange , F , Leskinen , E & Hietanen , S 2011 , ' Seasonal variation in nitrification and nitrate-reduction pathways in coastal sediments in the Gulf of Finland, Baltic Sea ' , Aquatic Microbial Ecology , vol. 63 , no. 2 , pp. 171-181 . https://doi.org/10.3354/ame01492
dc.identifier.other PURE: 11533661
dc.identifier.other PURE UUID: 896fd368-f246-46bc-93b7-6091bb926728
dc.identifier.other WOS: 000289577600007
dc.identifier.other Scopus: 79956324836
dc.identifier.other ORCID: /0000-0002-1572-8294/work/29539034
dc.identifier.uri http://hdl.handle.net/10138/27950
dc.description.abstract The Baltic Sea is one of the most eutrophic marine areas in the world. The role of nitrogen as a eutrophicating nutrient in the Baltic Sea has remained controversial, due to lack of understanding of nitrogen cycling in the area. We investigated the seasonal variation in sediment nitrification, denitrification, anaerobic ammonium oxidation (anammox), and dissimilatory nitrate reduction to ammonium (DNRA) at two coastal sites in the Gulf of Finland. In addition to the in situ rates, we assessed the potential for these processes in different seasons. The nitrification and nitrogen removal processes were maximal during the warm summer months, when the sediment organic content was highest. In colder seasons, the in situ rates of the nitrification and nitrate reduction processes decreased, but the potential for nitrification remained equal to or higher than that during the warm months. The denitrification and nitrification rates were usually higher in the accumulation basin, where the organic content of the sediment was higher, but the transportation area, despite lower denitrification rates and potential, typically had higher potential for nitrification than the accumulation basin. Anammox and DNRA were not significant nitrate sinks in any of the seasons sampled. The results also show that the denitrification rates in the coastal Gulf of Finland sediment have decreased, and that benthic denitrification might be a less important sink for fixed nitrogen than previously assumed. en
dc.format.extent 11
dc.language.iso eng
dc.relation.ispartof Aquatic Microbial Ecology
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 1171 Geosciences
dc.subject sediment
dc.subject nitrogen
dc.subject nitrogen cycling
dc.subject nitrification
dc.subject Baltic Sea
dc.subject nitrate reduction
dc.subject denitrification
dc.subject anammox
dc.subject DNRA
dc.subject Gulf of Finland
dc.subject 1172 Environmental sciences
dc.title Seasonal variation in nitrification and nitrate-reduction pathways in coastal sediments in the Gulf of Finland, Baltic Sea en
dc.type Article
dc.contributor.organization Environmental Sciences
dc.contributor.organization Aquatic Sciences
dc.contributor.organization Tvärminne Zoological Station
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.3354/ame01492
dc.relation.issn 0948-3055
dc.rights.accesslevel openAccess
dc.type.version acceptedVersion

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