Warmer seas, sea lice and the Nordic art of adapting

Norway and salmon go together like fjords and dramatic weather.

For decades, Norwegian salmon farming has been one of the country’s great export success stories. In 2025 alone, Norway exported 1.4 million tons of salmon worth NOK 124.7 billion — the highest export value ever recorded for Norwegian salmon, according to the Norwegian Seafood Council.

There is just one awkward detail.

The sea is getting warmer.

Atlantic salmon prefer cold water, and rising temperatures are changing conditions along parts of Norway’s enormous coastline.

The salmon are not packing their tiny suitcases yet.

But the industry’s map may slowly be changing.

Salmon likes it cool

Research from Norway’s Institute of Marine Research shows that farmed salmon generally prefer temperatures below around 16°C and avoid warmer water when possible.

Higher temperatures can affect fish welfare and may gradually change which parts of Norway are best suited for salmon farming. Norwegian assessments suggest that suitable production areas could shift farther north as the climate changes.

And warmer water brings another complication.

Salmon lice.

These tiny parasites are already one of Norwegian aquaculture’s biggest biological challenges. Their development is strongly influenced by temperature, meaning warmer conditions can make an already difficult problem even more complicated.

Which is precisely what everyone wants from a parasite.

The fjords are beautiful. They are also complicated.

Norwegian salmon farming grew inside sheltered coastal waters for very good reasons: protection, infrastructure, excellent seawater and scenery so spectacular that even a fish farm can accidentally appear in a tourism brochure.

But coastal farming also brings challenges involving salmon lice, fish welfare, disease, escapes and effects on wild salmon.

Norway’s response?

More technology.

Obviously.

Could the future be farther offshore?

Norway is exploring offshore salmon farming in more exposed waters farther from the traditional coastline.

This is not simply a matter of towing a fish cage into the North Atlantic and wishing everyone good luck.

Offshore farms must survive waves, storms and strong currents. That requires enormous structures, specialized vessels, sensors, automated feeding, cameras and sophisticated monitoring.

Basically, the salmon farm is slowly becoming a North Sea oil platform.

Only with more fins.

We explored this technological development in Norway’s Giant Leap in Salmon Farming, where giant structures, automation and marine engineering offer a glimpse of what future aquaculture may look like.

Offshore farming is not a magic solution. It brings new environmental, technological and economic challenges of its own.

But it demonstrates something important:

Norway is not waiting to see what happens.

It is adapting.

Very Norwegian: turn a problem into an engineering project

Climate change creates a problem.

Sea lice create another.

Environmental pressure creates another.

Norway apparently looks at the collection and thinks:

“Excellent. We are going to need a larger spreadsheet.”

Research into offshore aquaculture, submerged cages, smarter monitoring and improved fish-health technology is already changing the industry.

Norwegian salmon is not disappearing. Quite the opposite — exports are at record levels.

But salmon farming in Norway is changing, and the combination of climate, technology and marine innovation makes this much more than a story about what ends up on your dinner plate.

Want to see the innovation behind the fjords?

For companies, professional groups and technical delegations, Norway offers a fascinating opportunity to experience aquaculture, seafood production, marine technology and sustainability firsthand.

Best of Nordic can arrange tailor-made programs and technical visits in Norway, combining industry insights with local seafood experiences, coastal destinations and, naturally, some of the world’s most spectacular fjord scenery.

So if your company or group wants to discover the Norway that exists behind the postcard, talk to us.

Explore Best of Nordic or contact us at info@bestof.dk and let us create a program built around your interests.

Because seeing a Norwegian fjord is impressive.

Understanding what Norway is building inside it is even better.