"You can do this." Professor Chen Yu whispered, "Aren't you familiar with the male Steller's sea eagle? When the female Steller's sea eagle goes out, you can climb onto the cabin and install the camera."
Xiang Yang blinked and said, "Okay, leave this to me."
In fact, Xiang Yang had never thought of this method at all.
Xiang Yang believed that if he could get along well with the male Steller's sea eagle, he could definitely get along well with the female Steller's sea eagle as well.
On the top of the cabin, the female Steller's sea eagle seemed to be eating. The male Steller's sea eagle moved its body, and because of the viewing angle, Xiang Yang could no longer see it.
"Yeah." Chen Yu nodded with satisfaction, then he looked around and asked in confusion: "Student Xiang Yang, we should be quite far away from the shore now, right? Why don't you cast a net and try to catch something?"
Today, Chinese fishermen's distant-water fishing vessels are basically equipped with sonar detection systems. However, there is still a certain gap between my country's sonar detection systems and those of foreign countries. It cannot accurately detect schools of fish on the seabed. Sometimes, it will make detection errors and mistakenly detect a few rare sea fish as a large school of sea fish swimming across the seabed. Therefore, Chinese fishermen who drive distant-water fishing vessels generally prefer to use purse seines or trawling.
Xiang Yang thought to himself, "You were staring at the Steller's sea eagle just now, so I have to accompany you. How can I have time to order the nets to be cast to catch fish?"
Xiang Yang said, "Don't worry. This is a country in the sea, with a lot of mud and sand on the seabed, but few vegetation. It's not suitable for fishing, and there aren't many sea fish. When it's time to cast the nets, I'll give the order to cast the nets and catch fish."
Professor Chen Yu nodded slightly. Even though he was an expert in marine biology, he could not compare with fishermen in fishing. There was no other way. This was their job. There was still a certain difference between a professional and a job.
Xiang Yang looked at Chen Qingsheng and asked in a pretentious manner: "Old Chen, what does the sonar detection system show? Are there any fish under our sea area?"
Normally when going out to sea, Xiang Yang doesn't ask about the sonar detection system. Xiang Yang is used to fishing based on his own experience and observation with the naked eye, because he uses a plug-in. The sonar detection system will only take the initiative to notify Xiang Yang if it actually detects fish under the sea, and it is up to Xiang Yang to decide whether to cast the net or not.
But this time it won’t work. There are too many professionals on the ship, and Xiang Yang can’t act too special in front of Professor Chen Yu and others.
In order to keep a low profile, Xiang Yang has even been refraining from walking to the side of the boat to look into the sea. He was afraid that he might suddenly see a very valuable and rare sea fish and would not be able to resist ordering the nets to be cast.
Chen Qingsheng had no doubts. Xiang Yang was the captain. Shouldn't it be natural for the captain to ask about the situation of the sonar detection system
"It's hard to say. If there are no fish, there are quite a few small red dots under this sea area. These small red dots are marine creatures. But if the catch is sufficient, these red dots are extremely scattered and do not look like large schools of fish." Chen Qingsheng said.
Xiang Yang nodded, "Then wait a while and cast your net later."
"Student Xiang Yang, every time before you cast the net, you always check the sonar detection system. Don't you just cast the net as soon as you go out to sea and drag it all the way forward?" asked Professor Chen Yu.
Many fishermen go out to sea to fish. As long as the fishing boat has an engine, they will generally trawle the net after going out to sea. No matter whether there are fish in the sea or not, they will just drag the net all the way.
"Firstly, we are an ocean-going fishing vessel. If we catch too little fish when trawling, it will be a burden on the fuel. It is also easy to not catch any fish but instead drag up a whole boatload of garbage. Secondly, don't I have a complete sonar detection system on my ship? Of course I have to use it."
Professor Chen Yu nodded and smiled at Xiang Yang with appreciation. He learned something that made him happy from Xiang Yang's words, that is, the fishing net used on Xiang Yang's boat was not the kind of net that would scrape the ground and kill everyone.
There is a kind of fishing net with very small mesh and sharp iron hooks at the bottom of the net. When pulled by the fishing boat, the iron hooks can even break the reefs. The name of this net is called the family-destroying net.
There is one advantage of using a trawl net, and that is that as long as the trawl moves forward, it is absolutely impossible to lose money. This method of fishing, which is like scraping the ground, does not matter whether there are fish in the sea water. After trawl for a few hours, at least a lot of scallops, crabs, conchs and the like living on the seabed can be caught. In short, it is more valuable than the cost of fuel.
However, the damage caused by the extinction net to the marine ecology is really too great. Once it is dragged, the seabed really looks like it has been plowed. There is no grass growing under the entire sea area, and all marine life is almost completely extinct.
"A friend of mine has a sonar detection system removed from a retired submarine. Although it is an old device from many years ago, it is still far ahead of those on the market in the civilian field. If you are interested, I will ask him later to see if he sells it for you," said Professor Chen Yu.
Xiang Yang's face lit up, "Of course I'm interested, thank you teacher."
The joy on Xiang Yang's face was not fake, he was really very interested.
Even if Xiang Yang was cheating, he couldn't possibly stand by the side of the ship and stare at the water for 24 hours, right
A more advanced sonar detection system is extremely important for fishermen.
Xiang Yang is very aware of the importance of the sonar detection system. Finland is a country with a very small land area, but it has become a major fishing power in the world seafood market. This is definitely related to its sonar detection equipment, which has the highest level of confidentiality.
"Don't be in a hurry to thank me. I don't know if I can do it or not. I just want to ask if you are interested. Besides, this thing is not cheap." Professor Chen Yu said with a smile.
Xiang Yang nodded, "No matter what, thank you teacher first."
Professor Chen Yu nodded with a smile and said nothing more.
Xiang Yang looked at Professor Chen Yu's profile and began to consider something in his mind.
Don’t be fooled by the fact that Professor Chen Yu seems to be very concerned about the sea floor, humpback whales, and killer whales.
But in fact, Xiang Yang had something in his hand that, once taken out, would ensure that Professor Chen Yu would immediately rush back to the laboratory without looking back, and throw the so-called research on the biological habits of killer whales, humpback whales, and Steller's sea eagles out of the window.
That thing is the Nautilus, which is hailed by scientists as an alien visitor. It has become completely extinct on Earth. It is the fossil of the giant Nautilus, which was once the top overlord of the ocean, and the straight-shelled Nautilus.
The straight-shelled nautilus has always been regarded by scientists as a miracle in the history of life.