My deep sea fishery

Advanced detection equipment does not work on jellyfish, so Chinese researchers' investigation process of jellyfish is also difficult.

Researchers can only take a vessel, once every two months, the original means of naked eye observation and fishing net fishing.

my country's researchers' research on jellyfish is in 2011.

On July 21, 2011, the researchers sailed into Jiaozhou Bay.

Jiaozhou Bay is located in the south of Shandong Peninsula. It is an area of ​​390 square kilometers. At that investigation researchers put a fishing net in the three points of Jiaozhou Bay.

After putting the fishing net, the scientific research boat moved all the way, and each line entered a minute, there were four or five jellyfish silencely appeared on the boat, including Xia Jaughiang and huge sand sea bream.

You can go to fish in a simple fishing net, and the net is often never close, and the jellyfish slipped.

Although the jellyfish has no brain, the edge of each jellyfish is distributed in the most sensitive feeling of the organ, these feel organs, the functions of the ear and the eyes, whenever the outside world has a storm, it passes through the sea Summit, I feel threatening, escaping early.

After three hours of hard work, the researchers have pulled two fishing nets, the effects are not satisfactory, and the nets in the fishing nets are sporadic jellyfish.

Researchers are very strange.

At that time, it was a fishing period. It is reasonable to say that it is the most fish in the marine fish, but it can be biased can't get a live fish.

Later, after investigation, researchers found that there were too many jellyfish in the sea area, and they were eaten by the fish population of the local fish. The sea fish appeared.

As for so many jellyrs in the sea, the researcher's explanation is that the human beings are overfishing for fish, causing the jellyfish in the fish, escaping the macrophards, a large amount of survival and growing into an adult.

The second is that with the decrease in fish in Jiaozhou Bay, the natural enemy competition with the jellyfish is small, and opportunities have provided opportunities for jellyfish outbreaks.

When the third fishing net is won, the researchers found that the net is still the big thing in the jellyfish and six jelly.

The local fishermen said that they have never seen such a big jellyfish in the nearly decades, surprising.

More than ten years ago, large fisheries examined ships in Yellow Sea and Donghai, and they were a sea fish, rarely saw the jellyfish.

That survey found that in the big outbreak of my country, the most common is that the three jellyfi is the sea moon, and the Sha sea bream is a jellyfish.

"Yang Ge, you really have to make these jellyfish can eat? I heard that this is very dangerous." Fang Friendou squatted on the ship, and his mouth said dangerous, in fact, there is no fear in his eyes, he This seemingly weak and weak, actually is very fearful.

"The danger is true, the jellyfish is one of the most ferocious carnivities in the world, and is also one of the strongest creatures in nature, but you can eat it. Now there is a special cooking in many restaurants in the world. The chef of the jellyfish or sea bream. "Xiangyang said with a smile.

"Jellyfish outbreak, overfishing of jellyfish predators decrease in orders, but for the world, and no overfishing in some areas, such as we are in the Antarctic, cold weather, is not well-developed fishery resource areas, there are also signs of the outbreak of jellyfish, which is really strange. "Xia Pengjie the side of the road thinking.

"I do not know, I have to ask scientists who specialize in jellyfish." Item Yang with a smile.

In fact, scientists are hard to answer out of this puzzle.

This is accompanied by repeated outbreaks of jellyfish in recent years, many research institutions with the Maritime University, have begun to pay attention to the creatures from jellyfish.

In terms Yang's alma mater, have set up a special jellyfish with relevant expertise.

In order to clarify the outbreak of jellyfish in addition to overfishing, what other factors, the scientists also established a laboratory to control and simulate the marine environment, and pick out the jellyfish in the world's most widely distributed marine, jellyfish as the first batch of samples They were housed and observed.

Elusive jellyfish has four annular stomach, where the stomach and under the umbrella portion corresponding to that gonads.

Usually, a pair of male and female jellyfish jellyfish can discharge one hundred thousand sperm and eggs in the water after fertilization, the fertilized egg will sink to the bottom, looking for something hard attachment down, develop into polyps.

Polyp only two millimeters in size, it is elusive jellyfish larvae.

But the scientists found under the microscope, a strong predation polyps, or even directly to a brine shrimp caught in his mouth.

According to the survey, as long as there has been a sea polyp, then the entire body of water more than half of zooplankton will be polyped to consume.

Appearance of polyps, greatly reducing the bait fish, the overall impact on the marine ecological balance is very large.

"Jellyfish most annoying is it no brain, I do not know hunger and eat, his entire life in eating these foods are usually based on plankton, fish shrimp, supplemented, and sometimes even the same prey, if allowed jellyfish flooded, that blow to the fishing industry, is absolutely devastating. "Xiapeng Jie said.

Item Yang nodded, "Yes, these jellyfish sting since we met, even if it is a thankless task will be to find a way to salvage some of them up, let alone these jellyfish sting can eat, and the price is cheap. "

Item Yang once in the laboratory, seen jellyfish sting of jellyfish prey situation.

Usually beautiful and gentle jellyfish sting when eating like the White Witch, the most powerful weapon is its tentacles to catch prey when, each tentacle in the hundreds of thousands of stinging cells rapidly breakdown the other flesh, and then immediately released venom, in just a moment to paralysis of prey, the prey is completely unconscious, becoming only let the mercy of jellyfish stings.

Yang item is personally seen seemingly gentle jellyfish brutal side, so the item Yang did not belittle these jellyfish.

Yang looked around the item has been put on protective clothing of the crew, said: "Jellyfish at feeding time, will first use stinging cells prey stabbed to death, part eaten, but more sank, wasted a when will you salvage jellyfish, do not be able to take off protective clothing, you know? "

"Rest assured, Yang brother, we are guaranteed not to let the jellyfish touch our skin." Fangyou group indifference Road.

Item Yang frowned and said: "I do not mean to make you do not run into jellyfish sting is in the salvage of the whole process, not allowed to take off protective clothing, stung by jellyfish tentacles can grow up to fifty meters so it's lethality is still strong outside fifty meters long as you do not wear protective clothing, then they will certainly be careful in the move. "