Frozen frozen fish revived after two seconds into the basin

Tuna throws its tail in pots after thawing under warm running water thanks to the method of preserving fresh fish commonly used in Japan.

The video was filmed in a market in Japan and posted on Facebook Pro Fishing site on November 28 recording a man placing a fish in a crate, according to Long Room. The camera facing the right angle and close-up of the thermometer indicate that the temperature inside the ice bucket is -2.1 degrees C.

The fish is then removed from the bin and placed in a plastic basin containing warm water, where it stays motionless for about two seconds. The man lightly touched the fish's tail, trying to turn his body to the warm water. The fish began to thrust its tail and struggled, causing the water to splatter.

According to the expert at the National Marine Aquarium in Plymouth, England, the fish in the video is more likely to belong to the tuna family. Certainly it is not completely frozen but only covered with rubble at a temperature of -2.1 degrees C for a short time. Fish can survive at this hard cold threshold because they have anticoagulant proteins in their bodies.

Videos posted on Pro Fishing page attracted nearly 55,000 views since posting. Some viewers consider the video to be staging or cruelty to animals. But in fact, this is a popular method of preserving fresh fish in Japan.

The fish is only frozen enough to slow its heart rate but not kill it. This way makes fish meat fresh and soft to use in Japanese dishes such as shashimi. Cold-water fish specialize in cold waters with anticoagulants in the blood to help the body tolerate freezing temperatures, characteristics common in Antarctic fish, according to a 2004 study published by Queen's University, Canada. . Seawater freezes at -22 degrees Celsius due to salt storage, called the freezing point decline.

Fish are also cold-blooded animals, so their metabolic rate may slow down to almost undetectable levels. Because fish are relatively small, they can warm up the body at a faster rate than other species, like the fish in the video. However, experts emphasize this preservation method can put pressure on the fish. Freezing and thawing many times will kill it.

In January 2016, Japanese researchers revived a frozen water bear for 30 years. Animals even lay 19 eggs and 14 of them have successfully hatched.