The stock threatened from a variety of directions

These are the few dangers facing the Atlantic salmon stock in Norway at this time. Now the effects of salmon farming and warming climate have the effects of hydroelectric power plants on the stock, which will include salmon hunters to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland to Iceland.

This is stated by Tor Haakon Bakken, professor at the Norwegian Technical University (NTNU), who has studied and discussed the sustainable development of hydropower, the role of lagoon systems in water resource management, the impact of power plants on nature and the effects of climate change on water systems.

Bakken is one of the keynote speakers at the Nordic hydropower conference that took place in Groska, but in his lecture today he discussed, among other things, the position of Atlantic salmon in Norway.

In a conversation with mbl.is, he says that investigating the status of the salmon stock can be valuable

« It is possible to look at the position of the wild salmon as a good point to the status of the biota. If the salmon stock maintains well, the biota is in good shape. »

Sour rain was the main threat

As in Iceland, the salmon fishing industry is quite extensive in Norway, but in a conversation with mbl.is, Bakken says that the position of the wild salmon stock has been high in the crucible in Iceland due to a number of threats that have suffered from it over the past decades.

« About a century ago, the main threat was sour rain that came from mainland Europe that had a very bad effect on the stock in southern Norway, and then the development and erect hydroelectric power plants began to be developed, which became the new threat that caused cuts in the stock. »

Bakken says that for a long time, since the middle of the last century, the effect of hydropower has been the main threat to the strain. Now, however, there has been a change there.

The salmon is infected with lice

« Each year, a special scientific committee publishes a report on the status of the wild salmon stock in Norway, and that report was published last week. It is mapped out what the main threats facing the wild salmon are, » says Bakken. He adds that this is done in light of the fact that the stock has become very small and now consists of only about 300,000 fish.

« Now the biggest threat has become the aquaculture industry. In Norway, the farms are often close to the river and the river river so the salmon has to pass them when it goes. out in the river, ”says Bakken, adding:

« That is why a lot of Norwegian hunters are very much in the running for the aquaculture industry. »

Download to Iceland

Then Bakken adds that it is not just the hydropower plants and the salmon that cause a reduction in the salmon stock.

« Another major risk factor that is now facing, at least in Norway, are climate change. Now at temperature, especially in summer, to become very high and exceed the tolerance limits of the salmon stock.

He adds that the threat caused by weather changes has even become even greater than the threat of hydroelectric power plants, but all these factors have resulted in low salmon fishing in Norway.

« There are only a few years left in Norway where the salmon can be caught and the fishing is very limited, so the salmon hunters now look further to Iceland. »

Salmon salmon has been seen in Icelandic salmon fishing. This was caught last summer.

Photo/Stars

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