My Deep-sea Fishery

"You can do this." Professor Chen Yu whispered: "Aren't you familiar with the male tiger-headed sea eagle? When the female tiger-headed sea eagle goes out, you can climb to the top of the cabin and install the camera. "

Xiang Yang blinked, "Okay, leave this to me."

In fact, Xiang Yang never thought about this method at all.

Xiang Yang believed that if he could get acquainted with the male tiger-headed sea eagle, he would definitely be able to get acquainted with the female one.

On the top of the cabin, the female tiger-headed sea eagle seemed to be eating, but the male tiger-headed sea eagle moved its body. Due to the angle of view, Xiang Yang couldn't see it anymore.

"En." Chen Yu nodded in satisfaction, then he looked around and asked in doubt: "Student Xiang Yang, we should be some distance away from the shore now, right? Why don't you cast a net and try the harvest?"

Today, sonar detection systems are basically installed on the ocean-going fishing boats of Chinese fishermen, but there is still a certain gap between my country's sonar detection systems compared with foreign countries. It cannot accurately detect fish schools on the seabed. Sometimes, there will be detection errors, and a few rare sea fish will be misdetected as a large group of sea fish swimming across the seabed. Therefore, fishermen who drive ocean-going fishing boats in our country generally prefer to seine or trawl.

Xiang Yang thought to himself that you have been staring at the tiger-headed sea eagle just now, so I can't accompany you? Where is the time to order the release of nets for fishing?

But Xiang Yang said: "Don't worry, here is a country with sea water, there is a lot of sediment on the seabed, but the vegetation is sparse, so it is not suitable for fishing, and there are not many sea fish. It will be time to release the net later. I will order the nets to be released."

Professor Chen Yu nodded lightly. Even if he is an expert in marine life, he can't compare with fishermen in fishing. There is no way. This is their occupation. There is still a certain difference between professional and professional. .

Xiang Yang looked at Chen Qingsheng, pretending to ask: "Old Chen, what's the sonar detection system showing? Are there any fish schools in our sea area?"

Usually when going out to sea, Xiang Yang doesn’t ask about the sonar detection system. Xiang Yang’s fishing habit is based on his own experience and observation with the naked eye, because he is using a plug-in, and the sonar detection system can only detect marine fish under the seabed. , will take the initiative to come to inform Xiang Yang, and Xiang Yang will decide not to spread the net.

But not this time, there are too many professionals on board this time, Xiang Yang can't be too special in front of Professor Chen Yu and others.

In order to keep a low profile, Xiang Yang even endured the trip until now, and he didn't go to the side of the boat to look into the sea. He was afraid that he would suddenly see a very valuable and rare sea fish and couldn't help but order to cast a net.

Chen Qingsheng had no doubts about him, Xiang Yang was the captain, and the captain asked about the situation of the sonar detection system, shouldn't this be a matter of course?

"It's hard to say. If there are no fish, there are many small red spots under this sea area. These small red spots are all marine life. But if the catch is sufficient, these red spots are extremely scattered and not It looks like a big school of fish." Chen Qingsheng said.

Xiang Yang nodded, "Then wait for a while, and then cast the net later."

"Student Xiang Yang, you have to check the sonar detection system every time you cast a net. Didn't you just release the net as soon as you go out to sea and drag the net all the way?" Professor Chen Yu asked.

Many fishermen go out to sea to fish. As long as the fishing boat has an engine, it will generally trawl forward after going out to sea. Regardless of whether there are fish in the sea, it will be dragged all the way first.

"First, we are ocean-going fishing vessels. If the trawler nets catch too little, it will be a burden on the fuel, and it is easy to not haul the fish, but tow a whole boat of garbage. The sonar detection system? Of course I have to use it."

Professor Chen Yu nodded, and smiled appreciatively at Xiang Yang. From Xiang Yang's words, he learned something that made him happy, that is, the fishing nets used on Xiang Yang's boat were not the ones that were scratched. Juehu.com.

There is a kind of fishing net with very small meshes and sharp iron hooks at the bottom of the net. When pulled by fishing boats, the iron hooks can even shatter rocks. This kind of net is called Juehu net.

One of the advantages of trawling with a household net is that as long as the trawling net moves forward, it is absolutely impossible to lose money. This kind of fishing method like scratching the ground, no matter whether there are fish in the sea or not, after a few hours of trawling, at least the scallops that live on the bottom of the sea, You can get a lot of crabs, conchs and the like, but they are worth more than oil.

However, Juehu.com’s damage to the marine ecology is really too great. It was dragged once, and the bottom of the sea really seemed to be plowed. There was no grass under the entire sea area, and almost all marine life was extinct.

"A friend of mine has a sonar detection system removed from a decommissioned submarine. Although it is old equipment many years ago, it is still far ahead of those on the market in the civilian field. If you are interested, I'll ask you later to see if he sells it." Professor Chen Yu said.

Xiang Yang's face brightened, "Of course I'm interested, thank you teacher."

The joy on Xiang Yang's face is not fake, he is really very interested.

Even if Xiang Yang is on the hook, he can't stand on the side of the boat and stare at the water for 24 hours, can't he?

A more advanced sonar detection system is really important to fishermen.

Xiang Yang is very aware of the importance of the sonar detection system. Finland is a country with a very small land area. It can become a major fishery country that plays an important role in the world seafood market. Relationship.

"Don't thank me in a hurry. I don't know if it can be done. I just want to ask you if you are interested, and this thing is not cheap." Professor Chen Yu laughed.

Xiang Yang nodded, "No matter what, thank you teacher first."

Professor Chen Yu nodded with a smile and stopped talking.

Xiang Yang looked at Professor Chen Yu's profile, and began to weigh something in his head.

Don't look at Professor Chen Yu who seems to care about tiger head seabed, humpback whales and killer whales now.

But in fact, there is one thing in Xiang Yang's hand, as long as he takes it out, it is guaranteed that Professor Chen Yu will rush back to the laboratory without looking back, and take the so-called killer whale, humpback whale, and tiger-headed sea eagle. The study of biological behavior has been thrown into the clouds.

That thing is the nautilus, which is hailed as an alien visitor by scientists, and has been completely extinct on the earth. The giant nautilus, once the top overlord of the ocean, is the fossil of the straight-shelled nautilus.

The straight shell nautilus has always been regarded by scientists as a miracle in the history of life.