Title: Vertical partitioning of nitrogen‐loss processes across the oxic‐anoxic interface of an oceanic oxygen minimum zone
Abstract: Environmental MicrobiologyVolume 16, Issue 10 p. 3041-3054 Research article Vertical partitioning of nitrogen-loss processes across the oxic-anoxic interface of an oceanic oxygen minimum zone Loreto De Brabandere, Corresponding Author Loreto De Brabandere Nordic Center for Earth Evolution, Institute of Biology, University of Southern Denmark, Odense M, DenmarkFor correspondence. E-mail [email protected]; Tel. (+32) 2629 32 71; Fax (+32) 2629 32 74.Search for more papers by this authorDon E. Canfield, Don E. Canfield Nordic Center for Earth Evolution, Institute of Biology, University of Southern Denmark, Odense M, DenmarkSearch for more papers by this authorTage Dalsgaard, Tage Dalsgaard Arctic Research Centre, Department of Bioscience, Aarhus Univeristy, Aarhus C, DenmarkSearch for more papers by this authorGernot E. Friederich, Gernot E. Friederich Monterey Bay Aquarium Research Institute, Moss Landing, CA, USASearch for more papers by this authorNiels Peter Revsbech, Niels Peter Revsbech Department of Bioscience, Microbiology Section, Aarhus University, Aarhus C, DenmarkSearch for more papers by this authorOsvaldo Ulloa, Osvaldo Ulloa Departmento de Oceanografía, Universidad de Concepción, Concepión, ChileSearch for more papers by this authorBo Thamdrup, Bo Thamdrup Nordic Center for Earth Evolution, Institute of Biology, University of Southern Denmark, Odense M, DenmarkSearch for more papers by this author Loreto De Brabandere, Corresponding Author Loreto De Brabandere Nordic Center for Earth Evolution, Institute of Biology, University of Southern Denmark, Odense M, DenmarkFor correspondence. E-mail [email protected]; Tel. (+32) 2629 32 71; Fax (+32) 2629 32 74.Search for more papers by this authorDon E. Canfield, Don E. Canfield Nordic Center for Earth Evolution, Institute of Biology, University of Southern Denmark, Odense M, DenmarkSearch for more papers by this authorTage Dalsgaard, Tage Dalsgaard Arctic Research Centre, Department of Bioscience, Aarhus Univeristy, Aarhus C, DenmarkSearch for more papers by this authorGernot E. Friederich, Gernot E. Friederich Monterey Bay Aquarium Research Institute, Moss Landing, CA, USASearch for more papers by this authorNiels Peter Revsbech, Niels Peter Revsbech Department of Bioscience, Microbiology Section, Aarhus University, Aarhus C, DenmarkSearch for more papers by this authorOsvaldo Ulloa, Osvaldo Ulloa Departmento de Oceanografía, Universidad de Concepción, Concepión, ChileSearch for more papers by this authorBo Thamdrup, Bo Thamdrup Nordic Center for Earth Evolution, Institute of Biology, University of Southern Denmark, Odense M, DenmarkSearch for more papers by this author First published: 23 August 2013 https://doi.org/10.1111/1462-2920.12255Citations: 60Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Summary We investigated anammox, denitrification and dissimilatory reduction of nitrite to ammonium (DNRA) activity in the Eastern Tropical South Pacific oxygen minimum zone (OMZ) off northern Chile, at high-depth resolution through the oxycline into the anoxic OMZ core. This was accompanied by high-resolution nutrient and oxygen profiles to link changes in nitrogen transformation rates to physicochemical characteristics of the water column. Denitrification was detected at most depths, but anammox was the most active N2-producing process, while DNRA was not detectable. Anammox and denitrification were mainly active in the anoxic OMZ core while activity was low to not detectable in the oxycline, except in association with an intrusion of OMZ core water. This indicates that continuous exposure to even submicromolar oxygen levels inhibits the processes either directly or through nitrite limitation. Anammox activity did not peak at the oxic-anoxic boundary but 20–50 m below matching the salinity maximum of the Equatorial Subsurface Water. This suggests that water history plays a major role for anammox activity possibly due to slow growth of anammox bacteria. Denitrification peaked deeper than anammox, likely reflecting a shift in the balance between this process and nitrate reduction to nitrite, governed by the relative availability of nitrate and nitrite. Citing Literature Volume16, Issue10Special Issue: Nitrogen Cycle EcologyOctober 2014Pages 3041-3054 RelatedInformation
Publication Year: 2013
Publication Date: 2013-08-23
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 82
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot