- Bange, H. W., P. Mongwe, J. D. Shutler, D. L. Arévalo-Martínez, D. Bianchi, S. K. Lauvset, C. Liu, C. R. Löscher, H. Martins, J. A. Rosentreter, O. Schmale, T. Steinhoff, R. C. Upstill-Goddard, R. Wanninkhof, S. T. Wilson and H. Xie (2024). Advances in understanding of air–sea exchange and cycling of greenhouse gases in the upper ocean. Elem. Sci. Anth. 12: 1, doi: 10.1525/elementa.2023.00044
- Kanwischer, M., T. Klintzsch and O. Schmale (2023). Stable isotope approach to assess the production and consumption of methylphosphonate and its contribution to oxic methane formation in surface waters. Environ. Sci. Technol. 57: 15904-15913, doi: 10.1021/acs.est.3c04098
- Ponomareva, A. L., N. S. Polonik, A. I. Obzhirov, R. B. Shakirov, R. A. Grigorov, O. Schmale and S. Mau (2021). Interrelation of methane distribution with psychro-, meso- and thermophilic hydrocarbon-oxidizing microorganisms in the bottom sediments of the Kara Sea. Geosyst. Trans. Zones 5: 389-398, doi: 10.30730/gtrz.2021.5.4.389-393.394-398
- Jordan, S. F. A., U. Gräwe, T. Treude, E. M. van der Lee, J. Schneider von Deimling, G. Rehder and O. Schmale (2021). Pelagic methane sink enhanced by benthic methanotrophs ejected from a gas seep. Geophys. Res. Lett. 48: e2021GL094819, doi: 10.1029/2021GL094819
- Wittenborn, A. K., O. Schmale and V. Thiel (2020). Zooplankton impact on lipid biomarkers in water column vs. surface sediments of the stratified Eastern Gotland Basin (Central Baltic Sea). PLoS One 15: e0234110, doi: 10.1371/journal.pone.0234110
- Wäge, J., O. Schmale and M. Labrenz (2020). Quantification of methanogenic Archaea within Baltic Sea copepod faecal pellets. Mar. Biol. 167: 153, doi: 10.1007/s00227-020-03759-x
- Lohrberg, A., O. Schmale, I. Ostrovsky, H. Niemann, P. Held and J. Schneider von Deimling (2020). Discovery and quantification of a widespread methane ebullition event in a coastal inlet (Baltic Sea) using a novel sonar strategy. Sci. Rep. 10: 4393, doi: 10.1038/s41598-020-60283-0
- Jordan, S. F. A., T. Treude, I. Leifer, R. Janßen, J. Werner, H. Schulz-Vogt and O. Schmale (2020). Bubble-mediated transport of benthic microorganisms into the water column: Identification of methanotrophs and implication of seepage intensity on transport efficiency. Sci. Rep. 10: 4682, doi: 10.1038/s41598-020-61446-9
- Schmale, O., M. Karle, M. Glockzin and B. Schneider (2019). Potential of nitrogen/argon analysis in surface waters in the examination of areal nitrogen deficits caused by nitrogen fixation. Environ. Sci. Technol. 53: 6869-6876, doi: 10.1021/acs.est.8b06665
- Wäge, J., J. F. H. Strassert, A. Landsberger, N. Loick-Wilde, O. Schmale, B. Stawiarski, B. Kreikemeyer, G. Michel and M. Labrenz (2019). Microcapillary sampling of Baltic Sea copepod gut microbiomes indicates high variability among individuals and the potential for methane production. FEMS Microbiol. Ecol. 95: fiz024, doi: 10.1093/femsec/fiz024
- Stawiarski, B., S. Otto, V. Thiel, U. Gräwe, N. Loick-Wilde, A. K. Wittenborn, S. Schloemer, J. Wäge, G. Rehder, M. Labrenz, N. Wasmund and O. Schmale (2019). Controls on zooplankton methane production in the central Baltic Sea. Biogeosciences 16: 1-16, doi: 10.5194/bg-16-1-2019
- Schmale, O., J. Wäge, V. Mohrholz, N. Wasmund, U. Gräwe, G. Rehder, M. Labrenz and N. Loick-Wilde (2018). The contribution of zooplankton to methane supersaturation in the oxygenated upper waters of the central Baltic Sea. Limnol. Oceanogr. 63: 412-430, doi: 10.1002/lno.10640
- Jakobs, G., M. Labrenz, G. Rehder, S. Hietanen, K. Kießlich, A. Vogts, M. Blumenberg and O. Schmale (2016). A bioreactor approach to investigate the linkage between methane oxidation and nitrate/nitrite reduction in the pelagic oxic-aoxic tansition zne of the central Baltic Sea. Front. Mar. Sci. 3: article 145, doi: 10.3389/fmars.2016.00145
- Schmale, O., S. Krause, P. Holtermann, N. C. Power Guerra and L. Umlauf (2016). Dense bottom gravity currents and their impact on pelagic methanotrophy at oxic/anoxic transition zones. Geophys. Res. Lett. 43: 5225-5232, doi: 10.1002/2016GL069032
- Schmale, O., I. Leifer, J. S. v. Deimling, C. Stolle, S. Krause, K. Kießlich, A. Frahm and T. Treude (2015). Bubble transport mechanism: indications for a gas bubble-mediated inoculation of benthic methanotrophs into the water column. Cont. Shelf Res. 103: 70-78, doi: 10.1016/j.csr.2015.04.022
- Berndmeyer, C., V. Thiel, O. Schmale, N. Wasmund and M. Blumenberg (2014). Biomarkers in the stratified water column of the Landsort Deep (Baltic Sea). Biogeosciences 11: 7009-7023, doi:10.5194/bgd-11-9853-2014
- Jakobs, G., P. Holtermann, C. Berndmeyer, G. Rehder, M. Blumenberg, G. Jost, G. Nausch and O. Schmale (2014). Seasonal and spatial methane dynamics in the water column of the central Baltic Sea (Gotland Sea). Cont. shelf res. 91: 12-25, doi:10.1016/j.csr.2014.07.005
- Jakobs, G., G. Rehder, G. Jost, K. Kießlich, M. Labrenz and O. Schmale (2013). Comparative studies of pelagic microbial methane oxidation within the redox zones of the Gotland Deep and Landsort Deep (central Baltic Sea). Biogeosciences 10: 7863-7875, doi:10.5194/bg-10-7863-2013
- Blumenberg, M., C. Berndmeyer, M. Moros, M. Muschalla, O. Schmale and V. Thiel (2013). Bacteriohopanepolyols record stratification, nitrogen fixation and other biogeochemical perturbations in Holocene sediments of the central Baltic Sea. Biogeosciences 10: 2725-2735, doi:10.5194/bg-10-2725-2013
- Berndmeyer, C., V. Thiel, O. Schmale and M. Blumenberg (2013). Biomarkers for aerobic methanotrophy in the water column of the stratified Gotland Deep (Baltic Sea). Org. geochem. 55: 103-111, doi:10.1016/j.orggeochem.2012.11.010
- Schmale, O., M. Blumenberg, K. Kießlich, G. Jakobs, C. Berndmeyer, M. Labrenz, V. Thiel and G. Rehder (2012). Aerobic methanotrophy within the pelagic redox-zone of the Gotland Deep (central Baltic Sea). Biogeosciences 9: 4969-4977, doi:10.5194/bg-9-4969-2012
- Schmale, O., M. Walter, J. Schneider von Deimling, J. Sültenfuß, S. Walker, G. Rehder and R. Keir (2012). Fluid and gas fluxes from the Logatchev hydrothermal vent area. Geochem. geophys. geosyst. 13: Q07007, doi:10.1029/2012gc004158
- Holtermann, P. L., L. Umlauf, T. Tanhua, O. Schmale, G. Rehder and J. J. Waniek (2012). The Baltic Sea tracer release experiment: 1. mixing rates. J. geophys. res. 117: C01021, doi:10.1029/2011JC007439
- Schmale, O., M. Haeckel and D. F. McGinnis (2011). Response of the Black Sea methane budget to massive short-term submarine inputs of methane. Biogeosciences 8: 911-918, doi:10.5194/bg-8-911-2011
- Schmale, O., J. Schneider von Deimling, W. Gülzow, G. Nausch, J. J. Waniek and G. Rehder (2010). Distribution of methane in the water column of the Baltic Sea. Geophys. res. lett. 37: L12604, doi:doi:10.1029/2010GL043115
- Schmale, O., S. E. Beaubien, G. Rehder, J. Greinert and S. Lombardi (2010). Gas seepage in the Dnepr paleo-delta area (NW-Black Sea) and its regional impact on the water column methane cycle. J. mar. syst. 80: 90-100, doi:10.1016/j.jmarsys.2009.10.003
- Keir, R., O. Schmale, R. Seifert and J. Sültenfuß (2009). Isotope fractionation and mixing in methane plumes from the Logatchev hydrothermal field. Geochem., geophys., geosyst. 10: 1-19, doi:10.1029/2009GC002403
- Umlauf, L., T. Tanhua, J. J. Waniek, O. Schmale, P. Holtermann and G. Rehder (2008). Hunting a new oceanic tracer. 89, 43: 419-420
- Keir, R. S., O. Schmale, M. Walter, J. Sültenfuß, R. Seifert and M. Rhein (2008). Flux and dispersion of gases from the "Drachenschlund" hydrothermal vent at 8°18' S, 13°30' W on the Mid-Atlantic Ridge. Earth planet. sci. lett. 270: 338-348
- Gülzow, W., U. Gräwe, S. Kedzior, O. Schmale and G. Rehder (2014). Seasonal variation of methane in the water column of Arkona and Bornholm Basin, western Baltic Sea. J. mar. syst. 139: 332-347, doi:10.1016/j.jmarsys.2014.07.013
- Haase K. M., Petersen S., Koschinsky A., Seifert R., Devey C. W., Keir R., Lackschewitz K. S., Melchert B., Perner M., Schmale O., Süling J., Dubilier N., Zielinski F., Fretzdorff S., Garbe-Schönberg D., Westernströer U., German C. R., Shank T. M., Yoerger D., Giere O., Kuever J., Marbler H., Mawick J., Mertens C., Stöber U., Walter M., Ostertag-Henning C., Paulick H., Peters M., Strauss H., Sander S., Stecher J., Warmuth M., Weber S. (2007). Young volcanism and related hydrothermal activity at 5°S on the slow-spreading southern Mid-Atlantic Ridge. Geochemistry, Geophysics, Geosystems 8 (11): doi:10.1029/2006GC001509.
- Borowski C., Asendorf V., Bürk D., Collasius Jr. A., Elder R., Fabian M., Forte P., Fuhrmann R., Hansen S., Jost C.L., Keir R., Kevis-Stirling J., Kevis-Stirling N., Perner M., Petersen J.M., Røy H., Schauer H., Schmale O., Schmidt K., Scott D., Waters R., Wefers P., Wetzel S. (2007). New coordinates for the hydrothermal structures in the Logatchev vent field at 14°45'N on the Mid-Atlantic Ridge. Inter Ridge News 16, 13-15.
- Koschinsky A., Billings A., Devey C., Dubilier N., Duester A., Edge D., Garbe-Schönberg D., German C., Giere O., Keir R., Lackschewitz K., Mai H. A., Marbler H., Mawick J., Melchert B., Mertens C., Peters M., Sander S., Schmale O., Schmidt W., Seifert R., Seiter C., Stöber U., Suck I., Walter M., Weber S., Yoerger D., Zarrouk M., Zielinski F. (2006). Dicovery of the new hydrothermal vents on the southern Mid-Atlantic Ridge (4°S - 10°S) during cruise M68/1. Inter Ridge News 15: 9–15.
- Schubert C.J., Durisch-Kaiser E., Klauser L., Vazquez F., Wehrli B., Holzner C.P., Kipfer R., Schmale O., Greinert J., Kuypers M.M.M. (2006). Recent studies on sources and sinks of methane in the Black Sea. In: L.N. Neretin (Editor), Past and present water column anoxia. NATO Science Series: IV: Earth and Environmental Sciences (64). Springer, Netherlands, pp. 419-441.
- Schmale, O. (2006). Submarine Methane Seepage in the Paleo Dnepr Area and Sorokin Trough and its influence on the Black Sea Methane Budget, 146 pp, Christian-Albrechts-Universität, Kiel.
- Schubert J. S., Kaiser E., Holzner C. P., Klauser L., Wehrli B., Schmale O., Greinert J., kand Kipfer R. (2005). Methanotrophic microbial community associated with bubble plumes above gas seeps in the Black Sea. Geochemistry, Geophysics, Geosystems: doi: 10.1029/2005GC001049.
- Schmale O., Greinert J., and Rehder G. (2005). Methane emission from high-intensity marine gas seeps in the Black Sea into the atmosphere. Geophysical Research Letters: doi: 10.1029/2004/GL021138.
- Bohrmann G., Ivanov M., Foucher J.-P., Spiess V., Bialas G., Greinert J., Weinrebe W., Abegg F., Aloisi G., Artemov Y., Blinova V., Drews M., Heidersdorf F., Krabbenhöft A., Klaucke I., Krastel S., Leder T., Polikarpov I., Saburova M., Schmale O., Seifert R., Volkonskaya A., and Zillmer M. (2003). Mud volcanoes and gas hydrates in the Black Sea: new data from Dvurechenskii and Odessa mud volcanoes. Geo-Marine Letters 23: 239–249.
- Goedert J. L., Thiel V., Schmale O., Rau W.W., Michaelis W., Peckmann J. (2003). The Late Eocene 'Whiskey Creek' Methane-Seep Deposit (Western Washington State) - Part I: Geology, Palaeontology and Molecular Geobiology. Facies 48: 223-240.
- Thiel V., Peckmann J., Schmale O., Reitner J., Michaelis W. (2001). A new straight-chain hydrocarbon biomarker associated with anaerobic methan cycling. Organic Geochemistry, 32: 1019-1023.
- Halbach P., Koschinsky A., Seifert R., Giere O., Kuhn T., and the shipboard scientific party (Armstrong R., Arndt C., Borowski C., Brasse S., Drischel M., Fonseca N. M., Frahm A., Gocke K., Jellinek T., Halbach M., Klingbeil M., Mocek M., Podgorsek L., Rahders E., Richter S., Sander S., Schmale O., Seifert T., Weitzel B., and Wong L. (1999). Diffuse hydrothermal fluid activity, biological communities, and mineral formation in the North Fiji Basin (SW Pacific): Preliminary results of the R/V Sonne cruise SO-134. Inter Ridge News 8 (1): 38-44.
