Recently, in Chengdu, Sichuan, a video about the "headless" thunder dragon fish swimming flexibly in the pond and surviving for 7 days attracted attention online. Many netizens were moved by the tenacious vitality of the fish and called it " steadily ". Some netizens also questioned the authenticity of the video and asked, "Why can the fish still survive if the head rots"?
On October 20, Red Star News reporter contacted the feeder Mr. Liu. Mr. Liu said that this "headless fish" was caused by fighting in the fish tank group, so the front end of the head rotted, so it looked like a headless fish. It has been placed outside the pond for more than a week. I have encountered similar situations before, but most of them can't stand it (so long). After watching the video, the expert said that the fish looked headless, but in fact, the key parts of the brain, gills, etc. were not injured, so it could survive for a short period of time.
"Headless" Thunder Dragon Fish
Feeder: Injured and quarantined for "healing" in fights, has survived for at least 7 days
In 2020, Mr. Liu resigned from the company and went home to raise fish by himself, which is both a hobby and a business. The "headless" thunder dragon fish in the
video was shipped from Guangzhou to Chengdu on September 20 this year. There were a total of hundreds of them at that time. Fights often occurred due to group breeding. More than a week ago, he found that the fish was injured in a fight and the front end of his head rotted, so he was isolated and raised and treated alone.
"This fish has a strong vitality. When the head and body are ulcerated, as long as the wound does not continue to spread, it can survive." Mr. Liu said that the fish in the video was injured at the front of the head, looking like a headless fish, and did not hurt the brain. The rotten meat of its wound will grow new meat after it recovers.
On October 18, Mr. Liu posted a video of "headless fish" swimming flexibly in the pond on the Internet, which attracted the attention of many netizens. Mr. Liu said that this situation has often encountered this situation during this period of time. I was raised in the fish tank before for treatment. Because the tank was small and there were not enough nutrients, I was now placed in the pond outside for treatment. Currently, there are more than 30 fish being treated, and their recovery is very good. However, Mr. Liu said that in the end most of them couldn't stand it, and this one had a long life.
Other injured thunder dragon fish
Expert: If you don’t hurt the key points, you can survive for a short time, but you can’t survive in the end
Why can the "headless fish" survive for several days? Zhang Zhiying, director of the Fisheries Administration Department of the Sichuan Provincial Fisheries Bureau, has been engaged in fishery management related work for more than 30 years. After watching netizens' videos, he said that the fish looks headless, but in fact, the brain, gills and other key parts are not injured, so it can survive for a short period of time. "But in the end, it usually cannot survive. Even if the wound heals, its mouth and eyes cannot grow again." Zhang Zhiying said, first, fish cannot eat without their mouths; second, there are many bacteria in the water, which is easy to get infected. As for how long it can last for a short period of time, it is impossible to determine. Some fish have stronger survivability and will survive longer.
Can the fish survive without a head? Zhang Zhiying said that fish rely on their gills to breathe, and their gills are located on the head. If the real fish has no head at all, their breathing will be gone and they will die soon. Therefore, it is basically impossible for a fish to survive without a head.
Red Star News Reporter Zhang Zhaoting Photo According to the interviewee
Edited by Tan Wangyu
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