The impact of bio-irrigation on the isotopic signature of benthic inorganic nitrogen fluxes

dc.rights.license	CC-BY-NC-ND
dc.contributor.advisor	Meile, Christof
dc.contributor.author	Rooze, J.
dc.date.accessioned	2013-08-26T17:01:22Z
dc.date.available	2013-08-26
dc.date.available	2013-08-26T17:01:22Z
dc.date.issued	2013
dc.identifier.uri	https://studenttheses.uu.nl/handle/20.500.12932/14204
dc.description.abstract	A high degree of isotope fractionation is inherent to denitrification. However, studies have indicated that this is not expressed in sediments due to complete consumption of the nitrate pool. Yet as long as there is an efflux of NO3 from the sediment, fractionation may occur even if the sediment acts as a net nitrate sink. We conducted a model study to determine whether active pumping by the lugworm Arenicola marina allows N isotope fractionation during benthic denitrification. Our results indicate that a significant degree of fractionation may occur and that the production of light N2 is enhanced by coupled nitrification-denitrification.
dc.description.sponsorship	Utrecht University
dc.format.extent	2194127 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en
dc.title	The impact of bio-irrigation on the isotopic signature of benthic inorganic nitrogen fluxes
dc.type.content	Master Thesis
dc.rights.accessrights	Open Access
dc.subject.keywords	nitrogen, isotopes, fractionation, marine, sediment, bio-irrigation, bioturbation, lugworm, modelling, diagenesis
dc.subject.courseuu	Earth, Life and Climate