Tag: fish farming

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58 million salmon died in Norwegian fish farms last year

In 2022, 58 million salmon died in Norwegian fish farms, an increase of one million salmon from the previous year.

Ground rent: Norway’s new salmon tax turns economic textbook models into reality

The Norwegian Finance Minister Trygve Slagsvold Vedum believes the introduction of a salmon tax will equalize differences between Norwegians. But some economists warn against unintended consequences.

Electric fence against salmon lice

An electric fence keeps the salmon healthy. But we will never find a lasting solution to salmon lice, says one researcher.

Government report raises fish-farm alarm: "Things are not going well for the Norwegian farmed salmon"

Last year, 54 million salmon died in Norwegian fish farms in the sea.

How healthy and climate friendly is Norwegian farmed salmon?

Swedish researchers have assessed one of Norways most important export products, farmed salmon, in a new report.

Controversial CRISPR-method used to make farmed salmon sterile

Gene editing using CRISPR is much debated globally but used in several projects in Norway. “This is not a single method”, says researcher Dorothy Dankel, comparing its diversity to surgery.

These measures can slow lice infestations on farmed salmon

A study of nearly 50 million salmon over six years shows that cleaner fish can delay lice infestations at salmon farms — if there are enough of the cleaner fish. As a result, fish farms could reduce the number of delousing procedures.

Who cares about pellet saithe?

There’s one thing we can say about men from Northern Norway that are over 60: They sure care about pellet saithe. And not just a little – they care about it in a way that is statistically more significant than everyone else in Norway.

Norwegian fish farmers reprimanded for poor treatment of cleaner fish

The aquaculture industry doesn’t do a good enough job supervising the use of cleaner fish, and many die. Unless the industry does a better job documenting the welfare of cleaner fish, it will need to stop using them, the Norwegian Food Safety Authority states in new report.

Salmon in pain when warm water is used as delousing treatment

Salmon are briefly immersed in warm water so the lice lose their grip. The treatment is the most common non-chemical delousing method used at Norwegian fish farms. But its imminent ban comes as new research reveals the pain and injury to the salmon.

Every year, 50 million cleaner fish die in Norwegian fish farms

“Would we tolerate the same mortality in other animals?” one veterinarian from the Norwegian Food Safety Authority asked at a recent conference on salmon lice.

Norwegian salmon is a huge success story – but could it get even bigger?

The salmon industry creates thousands of jobs along the coast. Its export value is twice that of all other Norwegian fish combined. Could more unique products add even more value?

'Fish welfare should be a criterion for obtaining new aquaculture concessions'

If fish mortality affects the bottom line, preventing mortality will be given more priority, says fish welfare researcher Tore Kristiansen.

How scientists discovered salmon that need less food to grow

Norwegian researchers have identified young salmon that can be farmed using less feed than their not-as-efficient brethren.

How healthy is farmed salmon?

Is farmed salmon as healthy to eat as wild salmon? And what about the health of the fish themselves?

Super salmon training starts early

Healthier, stronger, bigger: this is a goal for Norwegian farm-raised salmon—and Harald Takle is their personal trainer.

Farmed salmon are as fertile as wild salmon

The sperm from farmed male salmon are just as likely as the sperm of wild salmon to succeed in fertilising wild salmon eggs, experiments have shown. Researchers recommend that farmed salmon be made sterile.

Larger offspring when fish pick own mates

It might not be so advantageous for us to help endangered animal species by selecting what we consider suitable mates for them.

Organic salmon has more Omega-3

A small share of Norwegian farmed salmon is produced organically. The organic product has the same quality as other farmed salmon, but has more Omega-3.

Farmed salmon retains good fats

Norwegian farmed salmon is still a good source of long-chain omega-3 fatty acids, even though these fish are now fed more vegetable oils than previously.