The EuroMarine Open Science Day 2025, held in Chioggia, Italy, was a remarkable gathering of marine researchers, early-career scientists showcasing the latest advancements in marine science. With a diverse lineup of speakers covering topics from deep-sea processes to conservation challenges and technological innovations, the event reflected the dynamic and interdisciplinary nature of marine research.

Read here some of the most interesting topics discussed:

Exploring the Abyss: Unlocking the Secrets of the Deep

One of the most thought-provoking presentations challenged our understanding of oxygen production in the deep sea. Andrew Sweetman (SAMS) presented compelling evidence of dark oxygen production at the abyssal seafloor, raising new questions about carbon cycling in one of the least explored environments on Earth. This research not only sheds light on the resilience of deep-sea ecosystems but also highlights how little we still know about these remote habitats.

Challenging Assumptions in Marine Science

A recurring theme in the discussions was the importance of critical thinking in marine research. Mark John Costello (NORD) tackled the prevalence of "zombie ideas"—concepts that persist despite lacking strong scientific backing. His talk underscored the necessity of re-evaluating long-held beliefs and ensuring that research remains rooted in evidence-based science.

eDNA and Genomics: Revolutionizing Marine Monitoring

With technological advances reshaping ecological studies, Pavanee Annasawmy (Univ Brest) presented a comparative analysis of eDNA methods and primers to investigate mesopelagic biodiversity. Meanwhile, Jukka-Pekka Verta (NORD) explored the molecular dissection of life history variation in Atlantic salmon, demonstrating how genetic insights can inform conservation strategies. These studies reinforce the growing role of molecular tools in marine ecology and fisheries management.

Climate Change, Adaptation, and Ecosystem Resilience

The urgent challenge of climate change was at the forefront of many discussions. Luca Peruzza (UNIPD) highlighted the potential of thermal priming to protect Manila clams from marine heatwaves, a discovery that could have significant implications for aquaculture. Similarly, Filippo Drigo (UNIPD) presented a multi-disciplinary approach to understanding heatwave responses in marine species, emphasizing the importance of cross-disciplinary collaboration in tackling climate-related stressors.

The session also delved into ocean acidification and its cascading effects on marine ecosystems. Rafael Bermudez (Charles Darwin Research Station) and Marco Munari (UNIPD) investigated carbon-nitrogen isotopic signals and acidified habitats, contributing to our understanding of how marine organisms adapt to changing ocean chemistry.

Restoration, Conservation, and Human Impact

As marine ecosystems face increasing anthropogenic pressures, restoration strategies are gaining prominence. Johan van de Koppel (NIOZ) introduced the concept of de-embankment as a method for estuarine wetland restoration, demonstrating how reversing human interventions can restore ecosystem functionality.

Marine conservation was further explored through the lens of ocean literacy and marine protected areas. Silvia Gomez (UAB) emphasized the need to bridge natural and cultural heritage, reinforcing the importance of integrating local communities into conservation efforts.

Innovation in Marine Research: Technology and Art

Technological advancements are playing an increasingly significant role in marine research. Umberto Andriolo (INESC Coimbra) presented novel methods for drone-based coastal litter monitoring, advocating for standardized frameworks to enhance data reliability.

Beyond technology, interdisciplinary approaches brought new perspectives to marine conservation. A. Beggiato (UNIPD) showcased how art and science converge in acoustic enrichment projects designed to revive coral reefs, while Lotte Pohl (VLIZ) explored the impacts of offshore wind farm electromagnetic fields on elasmobranchs, raising important ecological and policy questions.

A Space for Collaboration and Forward Thinking

The Open Science Day concluded with reports from Euromarine funded activities. From addressing Arctic marine ecosystem challenges (Melina Kourantidou, Univ. Brest) to advancing equitable conservation strategies (Natali Lazzari, Univ. Santiago de Compostela), the event highlighted the need for interdisciplinary collaboration and global perspectives in shaping the future of marine science.

Looking Ahead

As we reflect on the EuroMarine Open Science Day 2025, it is clear that the marine research community is actively pushing the boundaries of knowledge, tackling complex challenges, and embracing innovative approaches. The event transitioned into the EuroMarine General Assembly, where members continued discussions on how to support cutting-edge research and foster collaboration within the network.

With exciting discoveries and bold ideas shared throughout the event, the Open Science Day once again reaffirmed EuroMarine’s mission: to support and strengthen the European marine research community in addressing the pressing scientific and societal challenges of our time.

We extend our gratitude to all speakers, participants, and local hosts for making this event a success, and we look forward to the continued exchange of ideas in future EuroMarine initiatives!