Grünke, S., J. Felden, A. Lichtschlage, A.-C. Girnth, D. de Beer, F. Wenzhöfer and A. Boetius 2011. Niche differentiation among mat-forming, sulfide-oxidizing bacteria at cold seeps of the Nile Deep Sea Fan (Eastern Mediterranean Sea). Geobiology 9.

Felden, J., F. Wenzhöfer, T. Feseker and A. Boetius. 2010. Transport and consumption of oxygen and methane in different habitats of the Håkon Mosby Mud Volcano (HMMV). Limnology and Oceanography 55, 2366-2380

Lichtschlag, A., J. Felden, V. Brüchert, A. Boetius and D. de Beer. 2010. Geochemical processes and chemosynthetic primary production in different thiotrophic mats of the Håkon Mosby mud volcano (Barents Sea). Limnology and Oceanography 55, 931-949.

Lichtschlag, A., J. Felden, F. Wenzhöfer, F. Schubotz, T. Ertefai, A. Boetius and D. de Beer. 2010. Methane and sulfide fluxes in permanent anoxia: In situ studies at the Dvurechenskii mud volcano (Sorokin Trough, Black Sea). Geochimica et Cosmochimica Acta 74, 5002-5018.

Girnth, A.C., Grunke, S., Lichtschlag, A., Felden, J., Knittel, K., Wenzhofer, F., de Beer, D. and Boetius, A. 2010. Novel, mat-forming Thiomargarita spp. thrive on a sulfidic fluid outflow at the Amon mud volcano (Eastern Mediterranean). Geochimica et Cosmochimica Acta 74: A335-A335

Boetius, A., T. Holler, K. Knittel, J. Felden and F. Wenzhöfer. 2009. The seabed as natural laboratory: Lessons from uncultivated methanotrophs. In S. Epstein (ed) “Uncultivated Microorganisms”. Springer Verlag, Microbiology Monographs, pp. 59-82.

Oral Presentations

J. Felden, F. Wenzhöfer, D. Yoerger, R. Camilli, C. German, K. Olu, T. Feseker, D. de Beer, A. Boetius. Comparison of biogeochemical activities before and after significant mud displacement at the Håkon Mosby Mud Volcano (Barent Sea). HERMIONE annual meeting, Malaga, 2011.

J. Felden, F. Wenzhöfer, A. Lichtschlag, P. Pop Ristova, D. de Beer, A. Boetius. Temporal changes in chemosynthetic community distribution and biogeochemical processes at the Amon mud volcano (Nile Deep Sea Fan). EGU General Assembly; Vienna, Austria, 2011.

J. Felden, F. Wenzhöfer, P. Pop Ristova, A. Lichtschlag, A. Boetius. Methane emission and consumption at four different deep-sea mud volcanoes - contribution to the marine methane budget; 10th International Conference on Gas in Marine Sediments, 2010.

J. Felden, F. Wenzhöfer, P. Pop Ristova, A. Lichtschlag, A. Boetius. Comparison of microbial methane consumption and emission for three European mud volcanoes. HERMIONE annual meeting, Malta, 2010.

J. Felden, A. Boetius. From research cruises to PANGAEA: an example for interdisciplinary data processing. HERMIONE kick-off meeting. Sorrento, Italy, 2009.

J. Felden, A. Lichtschlag, H.Niemann, D. de Beer, F. Wenzhöfer, A. Boetius. Budgets of oxygen, sulfate and methane fluxes at an active mud volcano - The Håkon Mosby. 9th International Conference on Gas in Marine Sediments. Bremen, Germany, 2008.

J. Felden, A. Lichtschlag, H.Niemann, D. de Beer, F. Wenzhöfer, A. Boetius. Methane, sulfide and oxygen fluxes at methane and brine seeps of the Nile Deep Sea Fan (Eastern Mediterranean). EGU General Assembly, Vienna, Austria, 2008.

J. Felden, A. Lichtschlag, H. Niemann, D. deBeer, F. Wenzhöfer, A. Boetius. AOM in cold seep ecosystems - implications on flux rates and methane emission. Anaerobic Methane Oxidation - Exchange Meeting. Aselage-Herzlake, Germany, 2008.

J. Felden, G.Wegener, M. Bowles, F. Wenzhöfer, F. Schubotz, K.U. Hinrichs, M. Zabel, G. Bohrmann and A. Boetius. In situ rates of hydrocarbon and sulfide oxidation at the Chapopote asphalt volcano (Campeche Knolls, Gulf of Mexico). International Conference and 97th Annual Meeting of the Geologische Vereinigung e.V.; Bremen, Germany 2007.

J. Felden, A. Lichtschlag, F.Wenzhöfer, D. deBeer, J.P. Foucher, A. Boetius. In situ and ex situ measurements in methane enriched sediments of Amon Mud Volcano (Nile Deep Sea Fan. EGU General Assembly; Vienna, Austria, 2007.

Poster Presentations

J. Felden, A. Lichtschlag, F.Wenzhöfer, D. deBeer, J.P. Foucher, A. Boetius. In situ and ex situ measurements in methane enriched sediments of Amon Mud Volcano (Nile Deep Sea Fan). International Conference and 97th Annual Meeting of the Geologische Vereinigung, e.V.Bremen, Germany, 2007.

J.Felden, A. Lichtschlag, S. Grünke, F. Wenzhöfer, D. deBeer, A. Boetius. Methane, sulfide and oxygen fluxes at methane and brine seeps of the Nile Deep Sea Fan (Eastern Mediterranean). Goldschmidt 2007 - "atoms to planets", Cologne, Germany, 2007.

J. Felden, H. Niemann, F. Wenzhöfer, A. Boetius. Tracing changes in the community structure in sediments of the Håkon Mosby Mud Volcano by molecular and biogeochemical methods. 11th International Symposium on Microbial Ecology-ISME 1, 2006.

J. Felden, F. Wenzhöfer, F. Zielinski, N. Dubilier, A. Boetius. Fluid Dynamic and Microbial Processes at Hydrothermal Vents. 3rd Workshop SPP 1144, Etelsen, 2006.

J. Felden, A. Lichtschlag, F. Wenzhöfer,D. De Beer, A. Boetius. In situ microbial habitat studies. 1st Status Seminar-Seminar "Methane in the Geo/Bio-System" in the frame of the GEOTECHNOLOGIEN program, 2006.

J. Felden, F. Zielinski, G. Schroll, R. Seifert, A. Boetius ,N. Dubilier. Oxidation of methane in symbiotic bacteria of the vent mussel Bathymodiolus puteoserpentis. 2nd Workshop SPP 1144.; Etelsen, 2005.