(Thanks to the 600 starting coins tip from the readers of 'Absolute P'!)

"Switch vision!" said Minamino Shuichi silently in the system, and suddenly his vision switched from the scene to the sea. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

"Extend to the northwest!"

As Shuichi Minamino meditated, his vision quickly moved to the position of the sardines in the sea.

It's currently dark under the sea, but Shuichi Minamino's special vision is completely unaffected, and it's no different from daytime.

"This is a spectacular school of sardines? It's amazing. ”

I saw that Shuichi Minamino appeared in the middle of a sea area about a few tens of meters deep, and in front of him was a school of sardines. Sardines belong to the upper group of fish in the ocean, so they are not very deep, and they like to follow the currents.

Nearly 60,000 schools of sardines swim in the sea and eat plankton. They're very fast, and almost every fish moves in unison! they move, they move, they turn, they sink, they move forward. Anyway, it seems to be a unified action. It's like the phalanx of soldiers in ancient times!

It's as if they've been rehearsed thousands of times, and they're very tacit. The huge school of fish is black and pressed, and suddenly changes into a band, suddenly into a ball, and suddenly into a vortex. They are like a flame that changes endlessly, and it is as if they are magical, magical and fast.

Anyway, it was the first time for Shuichi Minamino to see such a shocking picture, and his shocked mouth couldn't close. You can't see this on the surface of the sea, and you have to be under the sea to see such a spectacular picture.

"It's kind of like watching a sci-fi movie. Shuichi Minamino sighed.

"Toggle the visuals. After taking a look, Shuichi Minamino took back the vision, and then he was going to prepare.

Fishing for sardines is not the same as catching other fish, it is a little special. Another is that Shuichi Minamino feels that he has been fishing a few times too abruptly. As soon as I asked the old man Kimura to change the course, it didn't take long for him to find that the fish were too strange. It's good to say that it's lucky, and as soon as you change direction, you find a school of fish, and it's a little weird to say that it's bad.

There are a few times when this kind of thing is fine, after all, luck is such a thing as no one can stop it. But it's not good to be like this every time, although it won't be caught and sliced, and no one will catch themselves to slice. But if this continues, it will inevitably make others think more. This kind of thing can be avoided, and it can be avoided.

"Tanimura Ueno, go and take out all the fishing lights I bought earlier, and install five lights on each side of the boat. In addition, inform Kogimura that the same is being prepared. Shuichi Minamino found Tanimura Ueno and instructed him.

"Boss, are we going to try this light fishing?" asked Tanimura Ueno.

"Yes. "Light fishing is what Shuichi Minamino saw in a documentary in his previous life. It tells how to use lights to catch fish on a fishing boat in the ocean. He doesn't know when he first invented light fishing. I don't know when mass adoption will begin. Anyway, he saw that the fishing boats around him were not in use.

In fact, Shuichi Minamino didn't know that in this fifties, it was not that no one used the light fishing on the ocean, but that it was relatively few people who used it, so he didn't see it. It is estimated that in a few years, it will enter the development period of deep-sea fishing, and it will be more and more widely used.

"Okay, I'm going to get someone to help with the installation. Tanimura Ueno hurriedly ran to work.

Animals have an optoaxis to some substances, and fish are no exception, some fish have tropism to light, so you can use this to catch fish. Light purse seine fishing is based on the phototaxis characteristics of pelagic fish, using lights to lure schools of fish and round up.

The meaning of tropism refers to the movement of organisms with the ability to move freely in response to external stimuli, and this movement is called tropism when it has a certain directionality. Motion can be divided into localized motion and non-localized motion, non-directional motion.

Simply put, the lights can attract some fish to come over!

In the ocean, sardines are one of the many fish in the upper layers of the ocean that are attracted to lights.

Soon, both sides of the fishing boat were followed by fishing lights, in fact, these are not regular fishing lights, but a kind of enhanced version of high-power special lamps. There are no professional fishing lights sold at Nemuro Fishing Port. So he didn't know where to sell. As for Nemuro City, he didn't go to see it. The main sea was in a hurry, and there was no time to inquire.

The voltage of the lamps and lanterns bought by Shuichi Minamino is more than 200V, and the wattage is certainly not as good as that of later generations. In the fifties, the electric light industry was still in its infancy.

The lighting range is estimated to be more than 50 meters, the light is not very strong, the underwater penetration ability is not deep, and the aperture is small. It's a big step away from the documentary that Hideno Minami watched.

"The underwater penetration of the light is estimated to be about ten meters deep. Nagano Shuyi looked at the effect at this time and estimated. The working depth of professional fishing teams like that of later generations basically reached about 20 to 30 meters, and some even deeper, and of course the price of lamps and lanterns was more expensive.

For example, after the development of light fishing in the previous life, it was to look for sea areas with complex underwater landform states and large reciprocating flow changes, such as underwater uplifted ridges, mountains, concave trenches, great differences in terrain, large differences in water depth, and deep line edge waters. In these sea areas, due to the large change in water depth, it is easy to form upwelling, which impacts plankton and small fish and shrimp to float, forming a good fish bait fishing ground, which is an ideal place to turn on the light to attract fish.

After finding such a place, use sonar to detect fish or use a fish search device to search for fish, and then choose a location with better fish images to turn on the lights to attract them. The fish are then rounded up when the fish are dense.

However, now the sonar detection of fish has not yet matured, and the fish-searching instrument has not been invented, and the scientific and technological product of the fish-searching instrument will not appear in this era. However, Shuichi Minamino doesn't need any of this, because his special ability to locate fish is better than the above two technologies!

Another is that if the light lures for 1 to 1 hour and the fish are not collected, you have to change the location. However, it should be noted that sometimes the fish swim at the edge of the light area, which can reduce the light intensity for testing, if there are fish at the edge of the light area, because the phototaxis fish will quickly swim to the light source and display the image on the screen of the fish finder, you can continue to turn on the light to attract the fish.

Don't pay attention to these Minamino Shuichi, the current light fishing is just an auxiliary tool for him to catch sardines, and he uses the light to fish one can explain that he didn't rely on luck to find fish. Another one is to prove that you are really good, haha.

Although this pseudo-fishing lamp is not very effective, it is not important. The range of the light is too small, the light does not penetrate the sea deep enough to attract fish? When the time comes, drive the fishing boat above the fish, and Shuichi Minamino is not afraid that those fish will not fail to come.