In the waters off Hokkaido, where tropical and cold currents meet, two currents of different temperatures collide and create waves, lifting nutrients from the seabed into the seawater and raising a large number of fish.

In the Pacific Ocean, most of the fish will be concentrated here, and these nutrient-eating or herbivorous fish will attract carnivorous fish, and a complete biological chain will appear.

Whether it is all kinds of plankton at the bottom of the food chain, or tiger sharks and whales at the top of the food chain, they have nothing to do in the face of fishing by the Dinghai Navy, and human beings will always stand at the top of the food chain.

One can easily kill any part of the food chain, whether it is the top-notch, carnivorous fish, or the lowest-grade dried shrimp, etc., which can become a delicious meal on the plate of humans, and even different types will have different tastes.

In the whole world, there are not many places where the largest cold and warm air currents meet, and there are many on the sea, but there are only a few islands around that can be easily fished.

Hokkaido, even in the thick, is one of the largest fishing grounds in the world, at this moment, the world's famous fishing grounds, now have not been developed, for example, the fishing grounds in the North Sea, they are relatively far from the land, the British Isles are still very small population, the islands themselves are enough to support these people, there is no need to develop fishing grounds located in the ocean.

The current Hokkaido has become the back garden of the Dinghai Navy, from the beginning of the occupation of Hokkaido, to now, it has been about 4 years, in the 4 years of development, has developed quite in place, the current Hokkaido, is not that, the climate is harsh, can only be a place to eat by the sky, this has become the best environment in the Dinghai Navy, and the most developed place in terms of fishery resources and output value, the development speed continues to increase, has become an important part of the Dinghai system.

It turns out that the aborigines of the Caucasian people living here are probably tens of thousands, and they still live in a primitive society, slash-and-burn, even after a few hundred years, in the face of the Japanese army of the Warring States Period, they are not opponents at all, let alone the Dinghai Navy armed to the teeth.

Fortunately, Dinghai attaches great importance to the existence of people themselves, and will not easily raise a butcher's knife, relying on the huge number of the Han nation, coupled with its own advanced nature, assimilation can be completed in ten or twenty years, and in the future, they are all the same people, so why make a big killing.

It doesn't matter if we separate people, scatter ethnic minorities, and maintain some unique characteristics, which may make China's ethnic groups more diverse in the future and improve a lot of humanities.

The unique traditions of various ethnic groups, the inheritance and the things buried in the bones, can only gradually play a role when the country develops and becomes strong to a certain extent.

There are not many indigenous people in Hokkaido, compared to other islands in Japan, Hokkaido is very large, but the natural conditions are relatively harsh, on the ocean, it rarely snows, but the snow in Hokkaido is frequent, and the temperature is relatively low.

This part of the aborigines, who were directly relocated from Hokkaido, entered the system of the Dinghai, whether they worked, or learned, then I don't know, in short, the Dinghai is like a huge furnace and machine, as long as it is suitable for this furnace and machine, they can be calcined together and become the most inconspicuous screw.

Today, Hokkaido has 18 ports, 18 coastal cities, and 9 large farm-type cities, each with a population of about 100,000, and even fewer farms, about 50,000.

Hokkaido has a population of 2.3 million, but the output value is not at all.

Marine fishing, even in the 21st century, is a relatively high-income industry, and compared with land, the ocean is not only larger in size, but also in larger space.

For the time being, human beings only use the land in a small amount of space on the ground, but for the ocean, even the continental shelf near the sea, has a depth of 200 meters, and these are the places where plants, animals, and organisms grow the most, and they are also the places where the most output.

At present, the Hokkaido Fishery Company has a total of 170,000 trawlers, and during the fishing season, the peak will have 7 million workers to serve the fishing company, and the total output value is 35 billion yuan based on the output value of 5,000 koiku created by each worker.

This is not the full capacity of the fishing company, because this only calculates the value of the fish caught in the sea, but not the value of the deep processing carried out by the affiliated enterprises.

Ordinary fish catches, after deep processing, can increase the value by two or three times, as for the more high-grade precious fish, if deep processing, in-depth development, it is not impossible to increase dozens of times.

For the time being, in terms of deep processing, the value-added value of the fishery company is about twice that of the fishery company, so that the output value of the entire fishery company is as high as 70 billion, and a single fishery company will be dozens of times higher than the largest income of the Northern Song Dynasty.

This is a super-large-scale state-owned enterprise, and it is also a technology- and capital-intensive enterprise, in which it is divided into two two-month fishing seasons, and every season, a large number of people will be concentrated here to carry out marine fishing, and countless fish are fished up from the sea, and then processed through some deep processing factories in coastal ports.

There are finished products, pickled food, canned food, these things, after processing, are transported to various places in the Dinghai Navy through the huge transport fleet of the Dinghai Navy.

Of course, there is also the Northern Song Dynasty, although because of the limited consumption level of the Northern Song Dynasty, only some of the lowest-grade ones are sent, and a small number of high-end ones are sent, but even these create high wealth.

In addition to these deep processing, in fact, in the past two years, there are many different ways, along with the Dinghai, health, for better fishery resources, a part of the aquaculture type of ships have also begun to appear, at the same time, a large number of applications of batteries, as well as the development of household appliances, some miniaturized refrigerators have also begun to appear.

Freezing can be said to be a relatively early method of storing food for a long time, and the time of discovery is no longer available, Zhao Xin with the help of the vision of later generations, put forward the theory of refrigerator compressor, using power, so that the air is compressed, and then the temperature is reduced, and the outside world is exchanged, and it is kept at a certain low temperature.

This kind of technology that surpassed this era, driven by the card system and high-quality metal, was really successful, even if it was relatively simple and consumed a lot of electricity, but their appearance allowed some precious fish to appear in inland cities in a live or relatively fresh way.

Salmon is an example, because salmon has very well-developed muscle fibers and is rich in various proteins, and once it dies, it is easy to rot and spoil.

When salmon is fished, only the big ones can be raised and sent to the port by high-speed boat, because of the cost, the price of this thing is very high, and it is hardly a delicacy that ordinary people can enjoy.

Of course, the marinated salmon can be better preserved, but such fish cannot be made into sashimi, and even the taste is similar to the others.

Even the smallest electric refrigerator can store a part, and some large ships can even make some larger cold storage, do a good job of sealing conditions, prepare a batch of ice cubes in advance, plus the use of electricity, so that you can store for a longer time.

In this way, the prices of some of the more precious fish in the sea have also begun to fall slowly, entering the homes of ordinary people, and the output value of the entire fishing company has also increased greatly.

Hokkaido, which is mainly engaged in fishing and deep processing, has hardly explored the location of the fleet, and has temporarily built some warehouses and stockpiled some materials in relatively remote places, but these places will soon be used.

For this, the exploration fleet has also been prepared for a long time, and the Hokkaido base is only a temporary, real base, and on the Kuril Islands, the naval construction team is under intense construction on it.

From Huludao to Hokkaido, in terms of sailing, it is not very far, but from Huludao to Jeju Island, it is about 1,600 kilometers, and the length of Japan is more than 2,000 kilometers, that is, counting other corners, from Huludao to Hokkaido, it is at least 4,000 kilometers.

This is already a relatively long time for the ocean, from Huludao to Hainan Island, it is only more than 3,000 kilometers.

At the speed of the clipper, the cruising speed per hour is about 12 knots, 12 hours a day, which is 240 kilometers.

The 50 clippers are not a very large fleet, basically ensuring a speed of about 15 knots, and it is a day and night journey, although the speed at night is a little slower, but the average speed can also ensure a speed of about 11 knots, and at the end of the day, more than 250 nautical miles, that is, close to 400 nautical miles.

Such a not too short voyage took only 10 days to arrive.

This also created a record for the entire Dinghai Navy, ocean voyage, such a long distance, it used to take at least more than a month, and now, it only took 10 days to arrive, which means that the distance between the two sides is shortening, and the difficulty of management is greatly reduced.

In the future, even if you take a lot of islands and control a certain sea area, there will be no problem of unsmooth government decrees, and high-speed navigation can easily solve this problem.

10 days of sailing, spanning a distance of 4,000 kilometers, for the newly built clipper fleet, is also a test, the crew of the fleet, in the base camp of Hokkaido temporary repair, personnel relaxed, can go to some scenic spots in Hokkaido to see, the base camp maintenance personnel, also carried out a certain treatment of the clipping boat.

The newer the boat, the more delicate it is, such as this clipper, some sub-projects, electrical appliances, and some things on the bottom of the boat, which have an impact on the speed and need to be dealt with.

At the same time, some necessary inspections should also be started, and some hidden dangers, or some deficiencies, need to be transformed.

These clippers rested in Hokkaido for 2 days, gradually getting acquainted with the northern seas, and studying various charts and strategies, and then entered the forward base and began to continue northward.

Along Hokkaido to the north, about a few dozen kilometers away, there is a rather large island, and as it continues, the islands gradually shrink and are long and narrow.

These two islands are too close to Hokkaido, rather than using this place as a base, it is better to continue, along this line, continue, about 600 kilometers forward, almost to about half of the Kuril Islands, there is an area is quite large, but all conditions are very good.

This island is not very large, about two or three hundred square kilometers, about the same size as the Dinghai Navy, but it is a volcanic island, because it is an extinct volcano, the center is quite high, in fact, the place that can be used only occupies about 10 of the island, about 20 square kilometers.

However, in this area of more than 20 square kilometers, there is a fairly good port, as well as a haven and the like, which can basically become a forward base without much development.

This is also the preset base of the entire exploration, and at the same time, it is also the northernmost point of the previous exploration, and further north, only the sporadic and most courageous fishing boats dare to continue to catch some rare fish, but there are no charts, let alone some hydrology, which is not suitable for them as a basis.

The leading ships have already begun to develop this island and the surrounding islands, because there are only a few animals and not many people on these islands, and the naming rights of these islands have been handed over to the Ding Navy.

Under Zhao Xin's bad taste, the Kuril Islands still maintained their original name, and in itself, this Kuril Island is also worthy of its name, but this big island, as well as several surrounding islands, were named the central islands.

Four of the 27 islands, including Chubu No. 1 to Chubu No. 27, are relatively not far apart, within 50 to 100 kilometers.

At the same time, these islands and ports are connected to each other, and as long as they are developed, they can immediately promote each other and become a complete base camp.

According to the plan of the Navy, this is one of the three parts, the first part of the Kuril Islands, which will be explored with this as the center, and then the peninsula, and then the Aleutian Islands, which have passed through these three, and it is not far from the Americas.