Dr Sebastian Steigenberger

Group: 
Ocean Technology and Engineering
Email: 
s.steigenberger@noc.ac.uk
Location: 
Southampton
Telephone: 
+44 (0)23 8059 6220

I am supporting the scientists and engineers of the Ocean Technology and Engineering group in their scientific work on sensor development and as the group's H&S advisor.

My own scientific work focuses on developing a method for the detection of dissolved organic nutrients (DON, DOP) for a lab on a chip (LOC) application.

Previously I have worked on the speciation of iron in seawater (flow injection analysis, voltammetry, ID-ICPMS) and how it is affected biologically (TEP, polysaccharides) and photochemically (UV, H2O2). The speciation of iron is important for the availability of this essential trace element to phytoplankton. Via photosynthetic carbon uptake phytoplankton plays a major role in the CO2 exchange between the atmosphere and the ocean. However, in large regions of the ocean phytoplankton growth is partly limited by iron. In Eric Achterberg's work group I have been working (2008-2012) in a NERC funded project, which focuses on the Iron Biogeochemistry in the High Latitude North Atlantic Ocean. This project aims to assess whether community productivity in parts of the high latitude N Atlantic is Fe limited following the annual spring bloom and determine the factors which lead to this situation.

Publications

Article

Wang, Y.; He, J.; Barua, P.; Chiodini, N.; Steigenberger, S.; Abdul Khudus, M.I.M.; Sahu, J.K.; Beresna, M.; Brambilla, G.. 2017 Ultraviolet photoluminescence in Gd-doped silica and phosphosilicate fibers. APL Photonics, 2 (4). 046101.10.1063/1.4976304
Le Moigne, Frédéric A.C.; Moore, C. Mark; Sanders, Richard J.; Villa-Alfageme, Maria; Steigenberger, Sebastian; Achterberg, Eric P.. 2014 Sequestration efficiency in the iron limited North Atlantic: Implications for iron supply mode to fertilized blooms. Geophysical Research Letters, 41 (13). 4619-4627.10.1002/2014GL060308
Painter, S.C.; Henson, S.A.; Forryan, A.; Steigenberger, S.; Klar, J.; Stinchcombe, M.C.; Rogan, N.; Baker, A.R.; Achterberg, E.P.; Moore, C.M.. 2014 An assessment of the vertical diffusive flux of iron and other nutrients to the surface waters of the subpolar North Atlantic Ocean. Biogeosciences, 11 (8). 2113-2130.10.5194/bg-11-2113-2014
Achterberg, Eric P.; Moore, C. Mark; Henson, Stephanie A.; Steigenberger, Sebastian; Stohl, Andreas; Eckhardt, Sabine; Avendano, Lizeth C.; Cassidy, Michael; Hembury, Debbie; Klar, Jessica K.; Lucas, Michael I.; Macey, Anna I.; Marsay, Chris M.; Ryan-Keogh, Thomas J.. 2013 Natural iron fertilization by the Eyjafjallajökull volcanic eruption. Geophysical Research Letters, 40 (5). 921-926.10.1002/grl.50221
Hinz, D.J.; Poulton, Alex; Nielsdottir, M.C.; Steigenberger, S.; Korb, R.; Achterberg, E.P.; Bibby, T.S.. 2012 Comparative seasonal biogeography of mineralising nannoplankton in the Scotia Sea: Emiliania huxleyi, Fragilariopsis spp. and Tetraparma pelagica. Deep Sea Research II, 59-60. 57-66.10.1016/j.dsr2.2011.09.002
Giering, Sari L.C.; Steigenberger, Sebastian; Achterberg, Eric P.; Sanders, Richard; Mayor, Daniel J.. 2012 Elevated iron to nitrogen recycling by mesozooplankton in the Northeast Atlantic Ocean. Geophysical Research Letters, 39 (12). L12608.10.1029/2012GL051776
Schmidt, Katrin; Atkinson, Angus; Steigenberger, Sebastian; Fielding, Sophie; Lindsay, Margaret C.M.; Pond, David W.; Tarling, Geraint A.; Klevjer, Thor A.; Allen, Claire S.; Nicol, Stephen; Achterberg, Eric P.. 2011 Seabed foraging by Antarctic krill: Implications for stock assessment, bentho-pelagic coupling, and the vertical transfer of iron. Limnology and Oceanography, 56 (4). 1411-1428.10.4319/lo.2011.56.4.1411

Conference item

He, Jing; Wang, Yun; Steigenberger, Sebastian; Macpherson, Alisdair; Chiodini, Norberto; Brambilla, Gilberto. 2016 Intense ultraviolet photoluminescence at 314 nm in Gd^3+-doped Silica. In: Conference on Lasers and Electro-Optics 2016, San Jose, US, 05-10 Jun 2016. JTh2A.86.