2024 Paris (France): Symposium “Après le naufrage… ? Récupération, réemploi et recyclage des épaves” with the presentation: “In the maelstrom of history: Strandings and wrecking in the German Wadden Sea”.
2024 Schleswig (Germany): Online-presentation for the “Archäologische Gesellschaft Schleswig-Holstein”, 29.01.24: „König Waldemars Ostsee-Itinerar im Licht archäologischer Quellen“.
2023 Lisbon (Portugal): Session chairman „Transient legacies of the past: Historical Archaeology in the Intertidal Zone“ at the Annual Conference of the Society for Historical Archaeology (SHA) with an own presentation entitled „Harbingers of early globalization in a regional context: Shipwrecks of the North Frisian Wadden Sea“, 6.1.23
2022 Oeversee (Germany): Presentation at the seminar „Archäologie Aktuell – in Schleswig-Holstein und Dänemark“ at the Academy Sankelmark, 17.12.22: „Neuzeitliche Schiffswracks im Nordfriesischen Wattenmeer“.
2022 Schleswig (Germany): Online-presentation for the “Archäologische Gesellschaft Schleswig-Holstein”, 28.11.22: „Neuzeitliche Schiffswracks im Nordfriesischen Wattenmeer“.
2022 Hamburg (Germany): Organisation and management of the conference: “Shipwrecks in the Intertidal Zone”, 18.-20.11.2022: https://intertidal-shipwrecks.de/
2022 Alkersum (Germany): Presentation at the Ferring Foundation, 28.8.2022: „Neuzeitliche Schiffswracks im Nordfriesischen Wattenmeer“.
2022 Christianslyst (Germany): 30 år Arkæologi i Slesvig / 30 Jahre Archäologie in Schleswig, 17.-18.6.2022: „Schiffswracks im Nordfriesischen Wattenmeer: Zum Stand der aktuellen Forschung“.
2022 Helsinki (Finland): 7th International Congress for Underwater Archaeology (IKUWA 7), 6.-10.6.2022: “Integrating the Maritime Cultural Heritage in Spatial Planning: A BalticRIM-Project report”.
2022 Pula (Croatia): In Poseidon’s Realm XXVII: Maritime landscapes, 16.-22.5.2022, “In the maelstrom of history: The wrecks of the North Frisian Wadden Sea”.
2022 Istanbul (Turkey): Guest lecture at the Mustafa V. Koç Maritime Archaeology Research Center (KUDAR) at the invitation of Prof. Matthew Harpster, 8.4.2022: Shipwreck Archaeology in the Intertidal Zone of the North Frisian Wadden Sea (Germany). https://kudar.ku.edu.tr/events/
2021 Zadar (Croatia): 16th International Symposium on Boat & Ship Archaeology (ISBSA 16), 26.9.-1.10.2021): “An early 17th-century ‚half-carvel‘ construction in the North Frisian Wadden Sea: The Japsand wreckage near Hallig Hooge, Germany”.
2019 St. Petersburg (Russia): Forum Strategov 2019: 18th Annual Strategic Planning Leaders Forum of the Regions and Cities of Russia, 28.-29.10.2019: Presentation of the BalticRIM project with Andrei Lappo (Ermak NW) in the seminar-dialogue session „The Baltic Sea Region: Russia-EU Transnational Cooperation Results and Perspectives“.
2019 Klaipėda (Lithuania): 27th BSSSC Annual Conference, 18.-20.9.2019: “Synergy effects in Schleswig-Holstein’s Maritime Cultural Heritage Management”.
2019 Kuressaare (Estonia): Final seminar of the BALTACAR Project, 22.8.2019: “King Valdemar’s Itinerary revisited: The historical context and archaeological potential of a 13th-century route description from Utlängan to Tallinn”.
2018 Berlin (Germany): Lecture series of the special exhibition“Bewegte Zeiten: Archäologie in Deutschland”, 10.12.2018: „Schiffsarchäologie im Land zwischen den Meeren“.
2018 Athens (Greece): Echopolis 2018: Nature & Culture, 27.11.2018: Chairman of the BalticRIM session and introductory lecture „The physical and anthropogenic landscape of the Baltic Sea region: an introductory overview”.
2018 Marseille (France): 15th International Symposium on Boat & Ship Archaeology (ISBSA 15), 22.-27.10.2018: “A Late 17th-century ‘Double Dutch’ Construction in the North Frisian Wadden Sea: The Case of the Hörnum Odde Wreck on the Island of Sylt, Germany”.
2018 Barcelona (Spain): 24th EAA Annual Meeting, 5.-8.9.2018: “BalticRIM: A New European Project for the Integration of the Baltic Sea’s Underwater Cultural Heritage in Maritime Spatial Planning”.
2018 Venice (Italy): MUSES workshop, 27.6.2018: Presentation of the BalticRIM projekt with a focus on synergy effects.
2017 Schleswig (Germany): “Tag der Archäologie 2017”, 4.11.2017: „Gestrandet im Wattenmeer: Zwei außergewöhnliche neuzeitliche Schiffswracks in der Tidenzone der nordfriesischen Inseln“.
2013 Avaldsnes (Norway): Conference „Hanseatic Trade in the North Atlantic: New Discoveries from Archaeology and History“ (May-June 2013): “Interpreting the ‚Beluga Ship‘ – A 15th-century shipwreck with Scandinavian features from the Hanseatic City of Bremen”.
2012 Amsterdam (Netherlands): 13th International Symposium on Boat and Ship Archaeology (ISBSA 13), Oct. 2012: Poster-presentation: “Variations in medieval shipbuilding – A Bremen case study”.
2011 Helsinki (Finland): 2nd Baltic Workshop for PhD Researchers in Maritime Archaeology (Nov. 2011)
2011 Bremen (Germany): German Archaeology Congress / DGAMN-Session „Holzbau im Mittelalter und der Neuzeit“, Oct. 2011: „Variationen in der mittelalterlichen Schiffbautechnik anhand von Wrackfunden in Bremen“.
2011 Cattolica (Italy): Summer School of the University of Bologna “Mediterranean and Baltic Sea. A cultural bridge between northern and southern Europe”, May 2011: “Cogs in the Baltic Sea: A challenging quest for tracing innovation and change in high medieval shipbuilding and navigation on the basis of an ambivalent historical-archaeological record”.
2010 Stockholm (Sweden): 1st Baltic Workshop for PhD Researchers in Maritime Archaeology, June 2010
2010 Toronto (Canada): International Conference at York University (Toronto, Kanada): “Gentes trans albiam. International Conference on Landscapes and Societies in Ancient and Medieval Europe East of the Elbe – Interactions between Environmental Settings and Cultural Transformations”, March 2010: “Dynamics for Cultural Change in the Baltic Sea Region in the Age of the Northern Crusades – a maritime archaeological perspective”.