Author: Hildur Ýr Þráinsdóttir

The team at DTU Aqua has been exploring exactly this question over the past few weeks through research, collaboration, and stakeholder engagement within MarineGuardian. 

Following the project’s annual meeting, Francois Bastardie published an article addressing a crucial challenge for European fisheries: how can we ensure sustainable fisheries while renewing the EU fishing fleet to support modernization and the energy transition? 

Financed by CINEA and derived from https://cinea.ec.europa.eu/publications/digital-publications/study-european-unions-fishing-fleet-evolution-challenges-and-future_en, the publication highlights the opportunities and challenges that lie ahead for the sector and helps put into perspective the changes needed to secure sustainable fisheries in the future. 

📖 Read the full publication here: 
https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2026.1812898/full 

But understanding the challenge is only part of the journey. 

Last Friday, Ludvig Ahm Crag and the DTU Aqua team brought stakeholders together in Hirtshals, Denmark, for a workshop focused on our Greenlandic case study. Thanks to SINTEF Ocean for the training and to Royal Greenland for the collaboration. 

Using a backcasting approach, participants were transported to the year 2040—a future where the trawl-camera technology developed within the project has been successfully deployed on fishing vessels and supports functional cod stock assessments. 

Their mission was simple: if this future exists, how did we get there? 

Working backwards from this vision, stakeholders explored the technological developments, policy decisions, collaborations and actions needed to turn that future into reality. 

Because creating sustainable fisheries is not only about developing innovative solutions—it’s also about building the pathways that make their adoption possible. 

The first MarineGuardian scientific article has been published in the ICES journal of marine science, written by Freya Snow, Paul D. Winger, Tomas Araya- Schmidt and Geneive Peck.

Abstract:

Entanglement in vertical buoy lines from fixed-gear fisheries remains a primary threat to the critically endangered North Atlantic right whale (Eubalaena glacialis, NARW).

Low breaking strength (LBS) components are used in some fisheries to reduce entanglement severity, but routine hauling forces in deepwater fisheries often exceed their safe working limits. Time-tension line cutters (TTLCs) offer an alternative for deepwater fisheries that do not weaken the vertical buoy line.

We conducted 400 tests to quantify TTLC performance under laboratory conditions, including an assessment of repeated use, tension, and water temperature on time to cut (TTC). Our results showed that the baseline TTC varied among units, but when this was taken into account, we found that a) 70% of the units exhibited no statistically significant change in TTC across repeated use, b) higher tensions and repeated activation shortened TTC, and c) water temperature had a strong inverse relationship, with colder temperatures significantly increasing the TTC for all units.

These findings provide critical guidance for tuning TTLC design and evaluating their suitability for safe, effective deployment in deepwater fixed-gear fisheries.

The journey began at the end of February in Glasgow, during the Ocean Science Meeting. There, the project took the stage through both a poster and a presentation. Esmé Maxwell showcased our work in a poster highlighting SINTEF’s efforts on data-driven fishing optimisation, demonstrating how smarter use of data can improve fuel efficiency, reduce bycatch, and support fishers through decision-support systems. During the session on Innovative and Climate-Informed Technologies for Marine Fisheries and Ecosystem Management, Paul Fernandes from Heriot-Watt University presented the latest advancements in SmartTrawl, illustrating how technology can help shape more sustainable fishing practices. 

The momentum continued into the first week of March. At the North Atlantic Seafood Forum, our coordinator Jónas R. Viðarsson chaired the session on White Fish Technology, helping guide discussions on innovation within the sector.

At the same time in Brussels, the European Ocean Days were bringing together the ocean community from across Europe. The MarineGuardian team was there as well, participating in talks and engaging visitors at the Mission Ocean and Waters Forum.

Sharing a booth with our sister projects Eco-Catch and Sea4Future, we introduced interactive ways to explore what a sustainable future for fisheries could look like. A big thank you to Caecilia Manago, Sophie Jensen, and Harald Hasler-Sheetal for representing the project and helping bring MarineGuardian to this event. 

It was 2 weeks full of inspiring conversations, new connections, and exciting opportunities for collaboration across projects and disciplines. 

Stay tuned—there is much more to come.

Many fisheries are well managed under an ecosystem-based, precautionary approach, and we have seen stocks and ecosystems successfully rebuilt through good management, yet important challenges still remain.

In Europe, Bottom trawling has damaged 79% of coastal seabed, and 25% of coastal area have lost vital habitats. Across the oceans, 38% of fish stocks are overfished. Over a million of Protected, Endangered and Threatened species are caught per year. This needs to change – but how?

Watch the video and see how MarineGuardian will address these challenges.

This summer, our partner Heriot-Watt University did trials to test the latest developments of Smartrawl, an innovative solution advanced in MarineGuardian. Smartrawl is tackling one the largest challenge faced in trawling: the bycatch of species and their high risk of mortality.

Smartrawl is an in-water sorting device which is retrofitted inside the net of a commercial fishing trawler. The system has three components:

a stereo camera, taking images of animals in the trawl

a computer, with artificial intelligence to detect, identify and size animals

and a gate, controlled by the computer to either catch or release animals controlled by a latch.

Smartrawl is designed with, and for, UK fishers, and their vessels to reduce discards and bycatch. The entire system needs no cables from the vessel and can be pre-programmed dependent on the fishers’ desired catch. Fisheries Innovation & Sustainability is the main partner behind the financing of the new gate for Smartrawl which was designed by Almond Engineering Limited. Thanks to them this innovative solution is reaching a new milestone in tackling bycatch from trawling.

In the last month they have manufactured a new, improved and more robust gate. At the beginning of September, they tested it in the Firth of Forth (just outside Edinburgh), evaluating if the gate would react well at being towed behind a small vessel. The tested performed showed the gate responded well, performing and rotating smoothly.

Innovation doesn’t come without challenges — and that’s exactly why we test!

The FishScanner, developed by Star-Oddi in collaboration with Hafrannsóknastofnun – Marine & Freshwater Research Institute, is being tested. Designed in two versions – a scientific model with stereo cameras for detailed data collection, and a commercial model built to be compact and non-intrusive – the FishScanner is set to transform how we monitor fish stocks.

During the most recent capelin survey between Iceland and Greenland, the scientific FishScanner was installed in the survey trawl. As fish passed through, the device counted them and measured their length in real time, allowing weight estimates of fish entering the trawl.

During this trial on board Árni Friðriksson (one of the research vessels from MFRI), the FishScanner was tested with a higher frame rate than before, resulting in darker pictures due to fewer photons per frame at the same light intensity.

But when we worked with capelin, we needed red light because their behavioural reaction to light is strong. However, everything else worked smoothly.

These are valuable lessons that will directly improve the device with stronger light, but still red.

The next trial is scheduled for January – stay tuned as we continue to refine this technology and push boundaries in fisheries research.

The month started with the second scientific committee meeting where the partners had the opportunity to meet in person and discussed the following steps to take on this exciting journey ! 

At the same time was held the forum about Energy transition in Fisheries, organised by the Nordic Council of Ministers where Matís had a keynote on fleet policy and fisheries management where MarineGuardian was introduced. 

Straight after, the fisheries conference, Sjávarútvegsráðstefnan was organised in Harpa, Reykjavik, and where multiple MarineGuardian partners shared interesting insights about the project.  

Þorsteinn Ágústsson from Trackwell had a presentation about the importance of Artificial Intelligence in the fisheries industry and how getting more data allows better decisions, while Pamela Woods from Hafrannsóknastofnun a chaired the session from Fisheries Management Systems of Coastal States.

Sveinn Margeirsson from BRIM took part in an interview and presented how the collaboration between industry and research is done within MarineGuardian. Multiple other MarineGuardian partners attended the conference as well and shared project insights. 

There’s something special about meeting face-to-face.

Then, we turned our minds toward the next six months, exploring how we can enhance the collaboration and increase our impact. Through three creative workshops, we stepped out of our usual roles to imagine a bright future and seeing the oceans through the eyes of different stakeholders, and imagine a world where today’s issues are only a bad memory.

One workshop was focused on drawing and expressing who we are within MarineGuardian: what drives us, and what kind of future we hope to build together.
Stay tuned, we have some beautiful outcomes to share soon!

We reflected on real-world impact, analysing how our solutions are shaped by real-world needs and what barriers and enablers will be linked to their development and commercialisation.  

Meeting in person reminded us that collaboration is more than collecting, analysing data and sharing goals, it’s about building trust, curiosity, and shared purpose.

These two days have strengthened the bonds that will carry us through the next four years of this exciting journey….not alone as our sister project, Eco-Catch, was with us and we started exploring new ways to work hand-in-hand for sustainable oceans.

Step by steps and hands to hands, we are building a more sustainable ocean future.