
About 70 years ago, it was common to see giant bluefin tuna racing through Danish waters in the summer. But by the late 1950s, their food sources had dwindled and the tuna had stopped coming here. For many years, they were just a memory. Until now.
Working fishing regulations
Thanks to decades of targeted fishing regulations, populations of mackerel, herring, halibut and other small fish have recovered significantly in the North Sea and along the Danish coast. And with them, the top predator has returned: the bluefin tuna.
Every summer, these giants migrate back to Danish waters and usually stay there until mid-October, some even until November.
Catch and release – with a focus on science
There is no commercial tuna fishing in Denmark. Instead, DTU (Technical University of Denmark) runs a scientific project where experienced volunteer fishermen help catch, tag and safely release tuna back into the wild. The project runs in two phases:
- August/September from Skagen,
- September/October from Helsingør.
After the tuna are caught, DTU researchers measure and tag them before releasing them. These advanced tags track the fish’s movements and transmit data via satellite, providing scientists with valuable insights into their behavior.

TITAN containers support research
To support DTU’s important work, TITAN Containers is providing two ArcticStore refrigerated containers . These containers are used for temporary storage and handling of tuna during tagging and research, ensuring optimal conditions for both fish and researchers.
This collaboration is a natural extension of our mission: to provide flexible and sustainable storage solutions wherever they are needed.
Fighting with the strongest of nature
Catching a tuna is a real test of strength. These fish can grow up to 3 meters long, with a similar girth, and can weigh 250 kilograms or more. They are incredibly strong, often ripping fishing lines, breaking rods and even escaping from the hook. It can take hours of intense effort to catch a tuna.
Our founder, Layland Barker, participated in the project himself:
“It took eight hours of non-stop fighting to deliver our tuna to DTU, but we did it and it was worth every second,” he recalls with a big smile.

Watch the fight with giants
Want to see what it’s like when a 250-kilogram tuna goes up against you? We definitely recommend watching the videos from the Tuna Association (Tunforeningen) in Denmark:
Watch the videos at https://www.tunforeningen.dk/
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