Following the workshop series in 2021, the third marEEShift modeling workshop will take place at German Centre for Integrative Biodiversity Research (iDiv) in Leipzig, on the 14-16th of December 2022. During the meeting, marEEshift members will discuss the progress of the previously scheduled modeling directions.

XXIII Annual BIOECON Conference took place at the University of Exeter, United Kingdom, from the 4th to the 6th of September 2022. A wide range of topics within the umbrella of biodiversity economics and finance was discussed during the conference. Namely, the role of biodiversity and ecosystem services in economic development, food security issues, fisheries, international trade and regulations, climate change, and others. marEEshift project was represented at one of the special sessions during the conference. Prof Dr Martin F. Quaas, Prof Dr Moritz Drupp and Michael Stecher represented marEEshift project at the conference. Among the others, M. Stecher gave a talk on “Catastrophic shifts in the Western Baltic Sea - who's responsible?”. You can find more information about the conference here.

During the planned research stay abroad, marEEShift scientists shared project findings while attending conferences and workshops, and meetings with colleagues from the University of California, Santa Barbara (UCSB), US. So, on 06.05.2022 Björn Bos gave a talk on “Fishing under the Radar: Illuminating the Compliance Gap of Fishing Bans” at UCSB, Bren School of Environmental Science & Management, and at the Annual Conference of the Association of Environmental and Resource Economics that took place in Miami, Florida on 01.06-03.06.2022. Prof Dr Moritz Drupp gave a talk on “Measuring Environmental Inequality Aversion” at the Environmental Justice and Intervention Workshop at UCSB on 26.08.2022.

“Modelling natural resource management in a changing world” was the theme of the World Conference on Natural Resource Modeling, which is supported by the marEEshift project. It took place in German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig in Leipzig and online between the 14th and the 17th of June, 2022. Prof Dr Martin F. Quaas was, among the others, on the conference organizing committee. You can find more detailed information in the marEEShift-Newsletter and here.

The fourth internal marEEshift retreat occurred on the 10th of November, 2021 online. During the retreat, the consortium members presented ideas for the potential next phase of marEEshift and developed a schedule for the associated next steps. Besides, members exchanged the state of the model development within different subprojects and agreed to have the next modeling workshop in early 2022.

marEEshift  data management meeting took place on 11th of October 2021 online. It was an internal meeting. During meeting, members discussed how to ensure the project's sustainability by providing accessibility of various data collected within the project.

marEEshif consortium members attended the virtual Midterm Conference for BioTip from 4th till 6th October 2021. Two young career scientists represented our project. Namely, Björn Bos gave a presentation called „Eliciting preferences of fishers and other stakeholders”, and Michael Stecher talked about “Attribution of causality for regime shifts.” Prof Dr Martin Quaas also gave a talk about the marEEshift project and wrap-up of one of the conference days.

XXII Annual BIOECON Conference took place in Jackson, Wyoming, USA, from 17th to 19th September 2021. The conference was in a hybrid format. The scientists from the marEEshift project could not attend it in person due to covid-19 restrictions and gave their presentations online. During the session “Models for Managing Ecosystems,” Michael Stecher talked about “Managing ecosystems with tipping points - how long are we responsible for our actions?”. And Prof Dr Stefan Baumgärtner gave a presentation on „Responsibility for regime shifts in managed ecosystems. “ Besides, Prof Dr Martin F. Quaas and Prof Dr Julia Bronnmann presented and discussed project-relevant topics. More details about the conference can be retrieved here.

Following the first marEEShift modeling workshop that successfully happened in June 2021, the second marEEShift  modeling workshop occurred on the 7th of September 2021. It was an internal (online) meeting. During the meeting, marEEshift members discussed the progress and the next steps regarding the modeling activities schedule developed at the previous workshop.

The first marEEshift modeling workshop took place on the 8th of June, 2021. It was an internal event and occurred online. Background information: In our project, we plan to identify the management options for the western cod in the stock shared by fishermen and anglers. The plan is to develop an agent-based model with fishermen and anglers as adaptive agents, and to simulate the effectiveness of various management procedures (i.e., quotas, length-based minimum dimensions, extraction marks, closed areas, etc.), possibly also concerning different climate scenarios. The latter makes sense if crucial components of the model (such as the spawning-recruitment relationship) are temperature-dependent. During the modeling workshop, marEEshift members discussed the conception, responsibilities, and preparatory work.

“Tipping ecological-economic systems towards sustainability” is the theme of the World Conference on Natural Resource Modeling, which was supported by the marEEshift project. It took place online between the 1st and the 4th of June, 2021. Its primary aim was to discuss how to change ecological-economic system dynamics to achieve long-term sustainability. The organizing committee consisted, among the others, of Prof Dr Martin F. Quaas, Prof Dr Robert Arlinghaus, and Prof Dr Christian Möllmann. marEEshift consortium members gave a presentation at the conference. In addition, Prof Dr Marie-Catherine Riekhof, as a keynote speaker, gave a talk called “To tip or not to tip - Reflections on tipping points in ecological-economic systems“. Michael Stecher received an award for the “Best PhD-Student Presentation“. Please find more information about the conference here.

The third marEEshift retreat will took place online on May 17th, 2021. During the retreat, project members presented and evaluated the project's progress and discussed the schedule for future activities.

The second internal marEEshift retreat took place online on the 17th of December 2020. During the retreat, the consortium members presented and assessed the project-related progress and future project activities. Besides, members discussed the project extension and the plans for the application for the next phase.

The independent market research institute imug Beratungsgesellschaft currently conducts scientific surveys about fishing and the development of fish population on the German Baltic seacoast under the guidance of Prof Dr Robert Arlinghaus and Prof Dr Julia Bronnmann. They call for fishers who already fished for cod or pike in the Baltic Sea or those who have plans to do so to attend the survey. By participating in the survey, fishermen have an opportunity to emphasize their interests. Participants also have the chance to win vouchers for fishing equipment by attending the surveys. For more details please visit

On 25th of November 2020, Prof Dr Stefan Baumgärtner gave an online presentation at the regular Economics Research Seminar of the Department of Economics, Leipzig University. Presentation ‘Responsibility for regime shifts in managed ecosystems’ introduced the audience to research that takes place in the frame of the marEEshift project. The Economics research seminars offer a forum for exchanging ideas and discussing between faculty members and external researchers. Prof Dr Martin F. Quaas is one of its organizers. More information can be found on the University website.

Supported by marEEshift project, the EAERE Workshop on The Economics of Inequality and the Environment took place between the 21st and 23rd of September 2020. During the workshop, 25 international experts explored links between environmental policy and economic inequality. Workshop was organized in a hybrid format and could be followed online via Zoom. The workshop program, containing presentations by Prof Dr Martin F. Quaas and Prof Dr Moritz Drupp, is now available.

A series of marEEshift Workshops took place in March 2020. Dr Harry V Strehlow, Dr Wolf-Christian Lewin, and Dr Simon Weltersbach were in charge of the workshops' organization. In the core of the Workshops, representatives of nature conservation organizations met with scientists at the Thünen Institute of Baltic Sea Fisheries, discussed the condition and the future of the Western cod, and develop proposals for future management.

You can find more information about these events in the second marEEshift Newsletter and on the website of the Thünen Institute.


In the frame of the “Western Baltic Summit” which took place in Hamburg on 21st of November 2019 at “World Fisheries Day”, marEEshift consortium members met around 25 representatives of various user and interest groups. The introduction of the project and its research interests by marEEshift team was followed by a fruitful discussion of the project goals and involvement of the stakeholders. After the lunch break, the first Stakeholder Workshop of the Thünen Institute with the participation of representatives of politics and administration took place. The workshop was focused on the question “What are the factors influencing cod stock in the Baltic Sea”. Both events were moderated by Ilke Borowski-Maaser from Hannover.

You can find more information about both events in the first issue of the marEEshift Newsletter.

XXI Annual BIOECON Conference took place  at the Wageningen International Congress Centre (WICC), Wageningen, The Netherlands on 11.09-13.09.2019. One of the special sessions was sponsored by marEEshift project. During this session Dr Thang Dao, Prof Dr Martin F. Quaas and Prof Dr Stefan Baumgärtner presented and discussed project relevant topics. More details about the conference can be retrieved from

marEEshift retreat took place in the Institute for Marine Ecosystem and Fisheries Science, University of Hamburg on 26.08-27.08.2019. During the intensive two days internal meeting project partners had an exchange regarding the project progress. In addition, discussions and feedbacks regarding the preparation for the first Western Baltic Summit and stakeholders workshop took place.

MarEEshirt kickoff meeting took place at the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig on 25.04-26.04.2019. It was an internal event where project members revised future activities and time plan.

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