For 15 years Sweden listened to herring gasping, mistaking it for a Soviet submarine

In the 80s of the twentieth century, Stockholm and Moscow almost fell out, and between the nuclear superpowers - the USSR and the United States - a conflict could be provoked due to the characteristics of some inhabitants of the Baltic Sea. But the countries did not know about it then, writes the IFLScience edition.

It all began when a Soviet submarine ran aground in 1981 on the southern coast of Sweden, just 10 kilometers (6,2 miles) from the Swedish naval base. Stockholm saw this as proof that Moscow regularly violates its sovereignty and infiltrates Swedish territorial waters. However, the USSR assured that there was a breakdown on board the submarine and the crew was simply forced to enter the waters of Sweden.

After a while, the submarine went into international waters. However, Stockholm decided to be on the alert, fearing that the Soviets might secretly be close to their shores. Swedish ships and submarines regularly picked up incomprehensible acoustic signals while searching for the "enemy". They searched hard and found absolutely nothing. This went on for a long time.

For 15 years the Swedes thought that Russian submarines were invading their waters. But they found only strange noises. In Stockholm, they really could not understand what was happening. By that time, the “cold war” had ended and the USSR had ceased to exist, but the noise did not stop. Sweden began to suspect Russia that she was mocking her.

In 1996, Magnus Wahlberg, a professor at the University of Southern Denmark, took part in the study of strange signals.

We were taken to some secret room under the Bergen naval base in Stockholm. We were there with military officers who let us civilians listen to these sounds

- he said back in 2012.

It looked like someone was frying bacon. Like little air bubbles coming out underwater, not the noise of propellers

- he specified.

After that, he and a colleague began their research. As a result, they found that the recorded sounds had nothing to do with the submarines.

Herring has a swim (air) bladder that is connected to the anal duct of the fish. It is a unique compound found only in herring. The fish can squeeze it and release (bleed off) excess air

- he explained.

This type of fish swims in giant schools in the Baltic, which can reach an area of ​​several square kilometers and a thickness of up to 20 meters. If something frightens her, she goes to the depth, for which she releases a certain amount of gas from the bubble. Considering the number of individuals in the school, this created a noticeable noise, which was recorded by the Swedish military.

For 15 years, Sweden listened to herring gasping, mistaking them for Soviet and then Russian submarines.
  • Used photographs: Adm. Rob Kramer / Twitter
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  1. General Black Offline General Black
    General Black (Gennady) 24 November 2020 14: 34
    An ear from a herring, not a submarine.

  2. beeper Offline beeper
    beeper 24 November 2020 15: 07
    I know almost the entire "history of the issue" with the total "search for Soviet submarines" (including the accidentally sailed along the secret fairway for Swedish submarines, and in 1981 stranded near Karlskrona of our "S-363" 613 project, nicknamed " Swedish Komsomolets " wink ), and even more I love to eat herring in all types of its culinary processing! yes
    Therefore, it was doubly interesting to learn this news of ichthyology - now it finally became clear to me why there was never air in the air bubble of the herring I cut, or there was very little of it. winked
    Here so

    Live and learn!

    Well, what will the Swedish PLO forces, who systematically jam fish with their depth charges, and civilian well-wishers-amateurs who photographed all "suspicious objects" in the coastal sea, will now go crazy over, and what will make money so well-the Swedish media, which have regularly published for decades similar exaggerated anti-Soviet-anti-Russian "sensations" ??!
    By the way, I once read the memoirs of an American submariner who for many years participated in underwater espionage (mainly on our Soviet shores, connecting to underwater cables of secret communications, and at sea ranges, collecting fragments of tested Soviet missiles from the bottom).
    An American sailor described an episode when their, specially re-equipped for reconnaissance, a nuclear submarine (although such an entry of an American nuclear submarine into the Baltic waters is officially denied!) Was very close to the Swedish coast for several days and they looked through the periscope at the movement of cars and did not suspect anything people on the seaside embankment (reading this, I then thought that the Swedish onlookers, who noticed this real periscope of the American submarine, in vain looked for and blamed the "insidious Russians"! wassat )!
  3. steelmaker Offline steelmaker
    steelmaker 24 November 2020 16: 12
    This article is great news! I read it like a good anecdote.
  4. Mikhail Petrov Offline Mikhail Petrov
    Mikhail Petrov (Mikhail Petrov) 24 November 2020 16: 39
    The find of the Swedish research company Marin Matteknik (MMT) off the island of Gotland turned out to be a Soviet medium diesel-electric submarine of the 613 Whiskey series. Length 76.6 m, width 6.64 m, crew of 52 people.
    The MMT does not exclude that this submarine is a submarine, which was attacked in April 1981 by the Swedish destroyer Halland while the Swedish Navy was hunting for unknown underwater objects. As then the Swedes believed that it was the Soviet submarines that violated their borders. They became confident in their assumptions when, near the Swedish naval base in Karlskrona in October 1981, a Soviet submarine S-363 of the same series hit the rocks. Moscow then stated that the incident was related to the breakdown of navigation devices.

    And if the Swedish destroyer Halland really sank the found Soviet submarine in peacetime, it becomes clear that the Swedish Navy does not want to investigate.
    1. DeGreen Offline DeGreen
      DeGreen 25 November 2020 08: 17
      Petrov, were you the captain of the Swede? Or the captain of a submarine? Or do you have such a fantasy. (not very healthy)
      1. The comment was deleted.
        1. The comment was deleted.
  5. Afinogen Offline Afinogen
    Afinogen (Afinogen) 24 November 2020 18: 27
    Sweden listened to herring gas for 15 years

    Marking, derivatives laughing