The fishermen of the Northern Song Dynasty, their lives were relatively poor, not because of experience, but because the boat was not good, they did not dare to go deep into the deeper sea area to fish, so there was not much harvest, because of the tide in the offshore sea, there were not many fish willing to approach, after the real tide, the harvest of catching the sea, mostly some shellfish, crabs, or mollusc amputees, real fish are very few.

I have lived by the sea for a long time, and I have seen a lot, and I also know some habits of fish, especially the experience accumulated by the elders over the years, so that these experienced fishermen know that the location of the mouth of the sea is almost 30 to 50 miles, and the convergence of the north and south currents makes the fish very prosperous.

This is common sense, almost everyone knows it, but unfortunately there are very few things that are done, unless they encounter something really difficult, can't get by, and need to fight, someone chooses to do this.

The problem of the boat is one aspect, the boat is on the side of the estuary, it is too dangerous, it is among the individuals, there may not even be one, and even if this one is successful, whether it can come back smoothly is really hard to say.

Now, with more than 10,000 super ships, even the wind and waves in the sea can withstand it, not to mention the estuary, the estuary, the wind and waves are slightly larger than other places, but it has little impact on the penetration of all materials.

In the past, these sailors encountered schools of fish at sea and caught a large number of fish, but the feeling was completely different from now.

The large fishing grounds that they used to desire are now in front of them, and they can sail at will without worrying about the wind and waves.

In the past, the ghost gate was closed, and I don't know how many fishermen were buried in it, and they couldn't even find their bones, but now, they were replaced by flat ground and lay flat by them.

They also want to know what the biggest fishing ground looks like in the legend, and if they don't know what they don't know, they are startled when they see it, and they see dense schools of fish next to the boat.

Perhaps, these fish schools are not as big as the big yellow croaker school that time, because in the Yangtze River estuary, there are many kinds of food resources, all kinds of fish are relatively more, and there are even carnivorous fish, so there are few large-scale fish schools, but the small fish schools are very dense, and it is a good place to put the net.

Zeng Da Niu their role has been reduced to the extreme, experienced or not, it has little effect here, after all, unless it is a very small number of places, the rest of the places, as long as the net is cast, it is a fish, it is just a matter of how much.

Fortunately, they also have some roles, for example, how to catch the largest fish in the net, and for example, what kind of fishing methods to use to maximize profits, these require experience and calculation.

Soon, they calculated the results, and finally laid the net, three huge trawls with a total area of more than thousands of square meters, began to be laid forward, these trawls, will enter the seabed, in the offshore, very shallow sea area at most tens of meters after the bottom net is buried, and then start to prepare.

Three boats cooperate with each other, several huge nets, began to sweep across the area, said the area, very huge, a trawl, can be equivalent to the ordinary fishing net hundreds of times, or even a thousand times, under this kind of fishing, often stronger, generally if the fishing boat is more, it is necessary to regularly suspend fishing.

There is also a fixed proportion of the navy, which especially refers to the mesh, the mesh of the trawl, there is a limit, for example, how big it is, it is suitable.

If it's a fishing net, it's as thin as possible, and if it's fine, you'll be able to catch as many fish as possible, but if it's too thin, it's easy to catch it thoroughly.

Finding familiar fishermen and setting some standards, such as fish that are small enough to be released back into the sea, this is unimaginable for fishermen who used to rely on the sky for food, and they will not understand what it means to be released back into the sea.

Zhao Xin knows very well that overfishing is bad for the sea, and later generations have almost caught to the extent that there are no fish in the East China Sea, and once something like that happens, it will be a nightmare for the sea.

Appropriately reducing the number of some populations can promote the development of populations, and the balance of the natural food chain is not the maximization of fishing, but the balance point of various foods.

Once it is reached, it will eventually be balanced, and proper fishing will allow some fish that have no chance to grow up, and to a certain extent, it can enhance the output of the sea, but once it is overfished, when a certain species, or all species, their populations are drastically reduced, it is irreversible and cannot be recovered.

Of course, Zhao Xin will not do the thing of drying up and fishing, in fact, unless it is an era of population explosion like in later generations, China has been collecting all kinds of food as much as possible, which will cause overfishing.

In this era, the population of the Northern Song Dynasty was only a little more than 100 million, and the existing land was enough to feed so many people, not to mention the future, the huge land was waiting for Zhao Xin to conquer.

Marine fish is only a supplement, and even in the future, when high-yield crops such as corn appear, aquaculture will become the focus, and cattle, sheep and pork will be the resident food compared to fish.

This is not the first time to fish, in the previous time near the navy, except for the first time, the rest of the harvest, the harvest is not large, but at least four or five times a day to the net.

This kind of thing in trawling is a process of gradually getting acquainted with the point, and now, they are very proficient.

Step by step, according to the order, start to lower the net, trawl the net, and then after a certain extent, start to close the net.

Unlike the first time of concentration, this time, it is obvious that many people have relaxed a lot, even in the midst of small talk, and even when pulling the fishing net, they have already felt some situations.

Some experienced fishermen, has been considering, this time the receipt is not small, the use of trawls, as long as a little understanding, you will understand, if you say, ordinary fishing nets, just a point to the surface of the lift, the trawl is a large area, in the range of fishing nets moving, front and back, left and right, like the heaven and earth nets, as long as the speed is not fast trawl, or in other words, can not leave in the trawl in time, then waiting for them, is to be salvaged.

In this sea area, how many fish are caught, they know in their hearts, as long as a part of it comes, this time the harvest will be huge.

Under the control of machinery, the trawl began to rise slowly, and the pulley group and various gears were applied to the fishing boat, which could amplify the power several times.

The huge nets were pulled up, and when the nets were up on all sides, the fishermen knew that the fish could not escape

Those fishermen knew that there were a lot of fish to pull up, but when they actually pulled them up, they found that there were really too many.

Thousands of square meters of four nets, a huge space full of fish, and jumping, it looks very active.

Another good harvest, all the fishermen thought with joy.

You know, even in the Northern Song Dynasty, fish is very cheap, the price is much lower than beef and mutton, and even chicken, but fish, after all, is meat, good and bad, can also be sold for dozens of dollars, ordinary fishermen, can catch thirty or fifty catties, it is enough for a day's spending, under the premise of good luck

Now, a boat can pull up tens of thousands of catties, even if it is 40 yuan per catty, it is worth tens of thousands of yuan, don't think that there are very few thousands, a ship with about 400 materials is only a thousand, this is just a net.

The sailboat was refitted, a sailboat with 10,000 materials, and the internal space could almost hold 18,000 materials, and almost all the cabins at that time were modified, almost able to hold more than 1,500 materials.

Of course, the conversion of material and tonnage, when it comes to fish, will be much smaller, plus a huge amount of manpower.

More than 100 people, that is, almost dozens of tons, plus some necessary equipment, some supplies, it is impossible to load all of them with fish, a ship, about 300 tons, at most less than 500 tons.

Even if it is 300 tons, it is a very terrible number, 600,000 catties, 3 ships, that is, 1.8 million catties, which is almost impossible for most people.

1.8 million catties, even if it is a catty of 50 Wen, it is almost 100,000 guan, what is the concept of 10,000 guan, now sailboats, aside from some ancillary equipment, simply just the hull, but only about 70,000 guan, with a variety of technology and equipment up, his price in the future, there will be a considerable reduction.

These fish alone will earn back more than a boat.

At that time, Zhao Xin vigorously developed fishing boats, and everyone thought that it was impossible, but now it seems that it is not impossible.

Of course, a net similar to 70,000 catties in the big yellow croaker school, it is almost impossible, but the average is a lot, if you want to fill it, it may be twenty or thirty nets. ，

This net, which is not the net of a fishing boat, takes a long time to lay and pull up at one time.

At the beginning, when I was not familiar with it, it took about 1 and a half hours, near the initial Dinghai Navy, but I could work for a day, at least, there were 4.5 hours, because of the safety relationship, they would spend 2 hours to go to sea, two hours to return, add up, 8 and a half hours, the sky was bright, and after the sky was gray, they slowly returned, which was relatively normal.

In fact, the development after that was faster than they thought, after the fishermen became acquainted, the time of a net was shortened from one and a half hours to one hour, and then half an hour, and even according to the fisherman, as long as it continued, the time could continue to be shortened, and the shortest time might be only half an hour less.

In fact, the fisherman has reached this speed, and in the process of pulling up, the fish are pulled down the deck and then entered the cabin of the ship for processing.

Now, in the Yangtze River estuary, in this natural fishing ground, there is no need to do this, no need to choose, you can pick up a net of fish, there is no time to stop.

The day's work began in this way, and they arrived at the mouth of the Yangtze River around early in the morning, and almost did not rest, and began fishing.

As long as the position of the net is roughly determined, and then it is the repetition of the labor, again and again, these skilled fishermen can almost guarantee 3 nets in 1 hour.

In the Yangtze River estuary, there are more fish stocks, but there are not many super-large and dense ones, but the trawl can choose long-distance trawl nets, rather than tightening immediately after determining the concentration location, as in the case of fishing in the ocean.

These two ways, the focus is different, the final harvest is also different, a net down, the most, that is, 38,000 catties of fish, far less than the first catch of 70,000 catties, but at least more than 8,000 catties, that is, an average of 18,000 catties, an hour's efficiency of 54,000 catties, which is far beyond the total amount of previous fishing.

The most important thing is that the operation time is very long, from about 8 o'clock in the morning to 6 o'clock in the evening, a total of 5 hours, and each boat can harvest an average of 540,000 catties, which is almost 270 tons.

This number, although it cannot be said, makes the fishing boat full of fish, the load of the fishing boat, about 300 tons, of course, there is a margin, almost can be expanded to 420 tons, but that is under the premise that there is no other space.

270 tons, which is already considered a full load, such a harvest is very good.

Itself, in Zeng Daniu's view, it may take two or three days to ensure a full load, who knows, the efficiency is so high, it will be full in one day, even if it is parked here at night, by tomorrow, it will not be loaded much, so it will simply return home.

When they came, the Dinghai Navy was already ready, not only equipped with guides who were familiar with Haimen and Chongzhou, but also received them here, and from the mouth of the Yangtze River to Chongzhou, it was only a voyage of sixty or seventy miles, and if they went at full speed, they could arrive in more than an hour.

Chongzhou Port, the port that guards the mouth of the Yangtze River, in fact, in the entire volume of the Northern Song Dynasty, is not very large, at best it is an ordinary port, it can park some small sea boats, more river boats, and the port wharf is not very large.

However, after the rise of the Dinghai Navy, the Dinghai Navy has some investment in all the river ports and seaports, which is an important wharf at the mouth of the Yangtze River, which is also valued, and opened the way through high-rise and silver money, and finally not only makes this port, from a small wharf that can dock ships below 1200 materials, to a large port that can dock about 10,000 materials, and similarly, in addition to the old port, a new port has also been opened.

This is the full investment of the navy, and the commercial port can directly dock more than 20,000 materials, and similarly, the newly opened fish port can also berth more than 20 large ships of 20,000 materials at the same time, which are used to welcome the return of their fishing boats.

When I left, it was close to dusk, and when I arrived at Chongzhou Fishing Port, it was already completely dark, but the brightly lit lighthouse gave them guidance and allowed them to dock the boat smoothly in the fishing port, and the people who had been prepared for a long time were already lined up on both sides of the fishing port, ready to unload.