Since 1946, there has been a gradual decline in fishery resources in the islands. Pen? Interesting? Pavilion wWw. ｂiquge。 infoIn the late 1970s, squid fishing was concentrated in the central part of the island's sea, and salmon fishing was mostly carried out in the shallow northern and southwestern seas.

At present, the fishery resources here are still very rich.

The northern seas are frozen in winter, especially off the coast of Siberia and the Tatar Strait. Seawater usually flows in an anti-clockwise direction. In the west, a cold current with a low salinity moves southward, and a warm current with a strong salinity in the east moves northward, forming a distinct convection. That's why the northern seas have always been a favorite place for fishermen, especially in the summer.

Convection in the seawater is one of the important reasons for the formation of fishery grounds.

"Ding-dong...... A school of herring was found 50 nautical miles from the host to the southwest, with coordinates of 142.1 longitude and 37.9 latitude. The number of fish is 20,130. ”

"Ding-dong...... Schools of squid were found due north 15 nautical miles from the host at longitude 138.4 and latitude 34.1. The number of fish is 10,451. ”

"Ding-dong...... 7 nautical miles due south from the host......"

Looking at the distribution of fish on the system interface, Nanno Shuichi shook his head in disappointment, although the fish found that there were both near and far! But the distribution is too scattered. Most of them are isolated and do not form a fishery scale.

If he had gone fishing in the past, he would have gone fishing, but now the fishing boats he leads belong to a large fleet, and if he goes to fish, it really outweighs the losses. All he needs to do now is to find the area where the fishing grounds form as soon as possible and then fish.

The weather at sea in the summer is not clear, sometimes it is sunny and cloudless. Sometimes there is a sudden rainstorm! But I was used to this kind of thing, and I didn't feel anything. As long as there are no storms and typhoons.

For two days, Shuichi Minamino was constantly looking for fish by relying on the system. Two days passed quietly, but he had not yet found a place where the fish were densely packed and formed a fishing ground.

Cruising hundreds of nautical miles in two days.

At this moment, the system suddenly conveyed a coherent message to him.

"Ding-dong...... Schools of salmon were found 80 nautical miles from the host to the southeast, with coordinates of 135.3 longitude and 33.2 latitude. The number of fish is 2084. ”

"Ding-dong...... Tuna schools were found 79.5 nautical miles away from the host in the southeast......"

"Ding-dong...... Schools of cod were found 80.1 nautical miles away from the host in the southeast......"

"Ding-dong...... Southeast......"

Looking at the system's series of prompts, Nanno Shui's eyes lit up: "This time I finally found the sea area where the fishing ground was formed!" ”

He saw schools of twenty or thirty large and small fish gathering densely in the sea area about 80 nautical miles to the southeast. And it's not a fishing ground where a single stock of fish is formed. It's a dense fishing ground formed by a variety of fish!

There are many types of fishing grounds, one is monolithic, that is, all the sea area is a school of fish. For example, the fishing grounds formed within a radius of a few nautical miles are all schools of herring, large and small, dozens or dozens of fish. This is a monolithic fishery.

The other is the variety of fish, the variety of fishing grounds is in this area, large and small, dozens of schools of fish are not a single school, but various types of fish gather here. For example, the one that Shuichi Minamino encountered above is. There are tuna, herring, cod, salmon and many more......

"Notify all the fishing grounds and set off in a southeasterly direction, the coordinates are longitude 135.3, latitude 33.2." Shuichi Minamino said to Otaro Miyashita beside him.

"Yes!" Otaro Miyashita immediately ran to inform. This young man has grown from a young boy to a first mate. At present, I am working with Shuichi Minamino.

Twenty large trawlers headed for their destination.

When the fleet reached this sea area, there was no need for Nanno Shuichi to shout, and the sailors on the fishing boats had already found that this sea area was densely populated with fish with fish search instruments.

Even from the surface of the sea, you can see schools of fish at a depth of one or two meters!

"Fish, fish, find fish!" A lookout shouted. Soon after, people from other fishing boats found out about it. Dense schools of fish are too easy to spot.

At this time, there are flocks of seabirds on the sea, and waves are all skimming low in order to feed. It seems that where there are schools of fish, seabirds are essential wow. Shuichi Minamino switched his vision and saw that the depth of the sea was about 200 meters.

Shuichi Minamino ran out of the wheelhouse, walked along the edge of the boat, poked his head out and began to observe the sea. Although he has a system, he still wants to study the characteristics of the formation of fishing grounds.

This area of the sea gives Minamino Shuichi the feeling that the sea water is unusually transparent, and photosynthesis is very strong. It looks like there are still currents confluence, and it seems that plankton must be abundant.

After studying for a while, he still gained a lot of experience.

In fact, marine fishery resources are mainly concentrated in the coastal continental shelf waters, that is, the part of the continental seabed that extends from the coast to a depth of about 200 meters. Plankton flourishes because of the concentration of sunlight, strong biophotosynthesis and abundant nutrients brought by rivers entering the sea. They are used as bait for fish and are generally abundant in temperate seas. The seasonal variation of the temperate sea area is significant, and the surface and bottom seawater are exchanged in winter, and the upper seawater is rich in nutrients, which is conducive to the reproduction of plankton. In addition, the confluence of cold and warm currents and the flooding of cold seawater are also abundant.

In addition to the cause of regional currents, there is another possibility for the formation of fishing grounds. That is, with the change of seasons, the migration or migration and breeding of marine fish will also form fishing grounds.

Herring and sardines, for example, prefer to go with the flow in shallow waters close to the coast. Sometimes they don't do it to feed, they just like it. So sometimes if you're lucky, you'll find that the current is all herring or sardines, and dozens of schools of fish drag along a long coastline, sometimes even tens of kilometers long.

In addition to these, there are also fish that multiply and form fishing grounds. Dozens of schools of fish breed in the same area. There are also migratory routes, where dozens of fish meet together to form a dense fishing ground.

As long as you have a lot of experience and the right time, you will often come across the opportunity to make a fortune by discovering fishing grounds.

He took a look at this area of the sea, and it is estimated that the reason why fishing grounds are formed in this area is because of the strong confluence of ocean currents and the abundance of plankton. Dozens of schools of fish are happily feeding.

"Boss, it seems that a fishing ground has been formed here!" Several sailors rushed over to report.

"yes, I see. Start fishing now. Shuichi Minamino commanded.

"Yes!"

Fishing operations begin in an instant. Twenty 1,000-tonnage trawlers took action en masse.