PANGAEA_926781 SFB754 Nitrogen and carbon fixation and N-cycle gene abundance Löscher, Carolin Regina; Mehrtens, Hela (eds.) SFB754 Nitrogen and carbon fixation and N-cycle gene abundance 2021-01-20 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.926781 Earth Science geoscientificInformation 2008-12-28 2013-06-22 Complete -17.166 17.4 -85.94999999999999 -15.043833333332998 SFB754 Climate - Biogeochemistry Interactions in the Tropical Ocean unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 10 datasets Krahmann, Gerd; Arévalo-Martínez, Damian L; Dale, Andy W; Dengler, Marcus; Engel, Anja; Glock, Nicolaas; Grasse, Patricia; Hahn, Johannes; Hauss, Helena; Hopwood, Mark James; Kiko, Rainer; Loginova, Alexandra; Löscher, Carolin Regina; Maßmig, Marie; Roy, A S; Salvatteci, Renato; Sommer, Stefan; Tanhua, Toste; Mehrtens, Hela (2021): Climate-Biogeochemistry Interactions in the Tropical Ocean: Data collection and legacy. Frontiers in Marine Science, https://doi.org/10.3389/fmars.2021.723304 Löscher, Carolin Regina; Fischer, Martin A; Neulinger, Sven C; Fiedler, Björn; Philippi, Miriam; Schütte, Florian; Singh, Ajay Kumar; Hauss, Helena; Karstensen, Johannes; Körtzinger, Arne; Künzel, Sven; Schmitz, Ruth A (2015): Hidden biosphere in an oxygen-deficient Atlantic open-ocean eddy: future implications of ocean deoxygenation on primary production in the eastern tropical North Atlantic. Biogeosciences, 12(24), 7467-7482, https://doi.org/10.5194/bg-12-7467-2015 Supplementary Table S17 (URI: https://download.pangaea.de/reference/107470/attachments/supplementary_table_S17.pdf)

Dinitrogen (N2) and carbon (C) fixation rates were measured on 9 cruises (see Table C17) using shipboard incubation experiments, complemented with nutrient and oxygen manipulations. During cruises M77/3, M77/4 and M80/2, N2 fixation was measured using the bubble addition method following Montoya et al (1996). During M80/2 a novel method based on 360 15N2 gas pre-dissolution, which was developed by Mohr et al. (2010), was tested in parallel to the classic method. An underestimation of N2 fixation rates by the classic method has been observed (Großkopf et al., 2012) and therefore the novel 'pre-dissolution method' was applied during the following cruises (M83/1, M90, M91, M93, M97, M104, M107). Single cell N2 fixation rates to differentiate the contribution of different clades of N2 fixers were measured using a NanoSIMS (Martinez-Perez et al., 2016). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.926781"!

http://www.sfb754.de SFB754 https://doi.org/10.3389/fmars.2021.723304 Climate-Biogeochemistry Interactions in the Tropical Ocean: Data collection and legacy https://doi.org/10.5194/bg-12-7467-2015 Hidden biosphere in an oxygen-deficient Atlantic open-ocean eddy: future implications of ocean deoxygenation on primary production in the eastern tropical North Atlantic DIF 9.4 2021-01-20 2026-04-30