What is "eaten" is carbon, and what is "spit out" is high protein.

There is no need to put any bait, let alone any drugs that may pollute the seawater environment, in an artificially constructed quasi-natural environment, more and more fish gather, and keep healthy and thrive...... This kind of breeding method is the correct way to open the marine ranch.

Under the protection of artificial reefs, on the one hand, Jiagu has changed the old method of overfishing, turning fishing into herding fish and raising natural seafood, and on the other hand, it has used the ability of algae and shellfish to capture carbon dioxide to purify the marine environment.

Seaweed cultivation is an important part of the ecological chain of fisheries.

If the "cultivation" of corals is limited by the difficulty of underwater operations, the cultivation of seaweed is advancing rapidly.

In the outer and wider sea, Kaya dispatched planes to sow seaweed.

With such a rare sowing method, Professor Zhou and others from the environmental assessment team came to join in the fun.

"The use of airplanes to sow seaweed is the first of its kind in China, right?" said Professor Zhou.

Qi Zheng looked up at the agricultural plane flying over: "No, it took our old nose to work hard, if it weren't for your coordination, I really don't know when we would have the opportunity to explore the flying seaweed." ”

"The point is that no one will build a fishing ground like Jiagu!" Professor Zhou hit the nail on the head.

Qi Zheng chuckled: "If we succeed this time, it will be difficult to say in the future." After speaking, he turned his head and looked at the sowing operation of the plane in the distance.

In such a large area of sea, sowing seaweed should also be taken into account.

According to the three different depths and different levels of 0~6 meters, 6~15 meters and 15~20 meters, the algae that grow and the matching marine animals are also different. In this way, a three-dimensional ecosystem can be constructed.

The first batch of seaweed to be stocked is giant algae.

This is a species introduced from the United States and is the longest family in the algae kingdom.

Although seaweed is measured and called "seed" when it is bought, in fact, it is not a seed in the traditional sense, seaweed does not produce seeds, but relies on dividing spores to reproduce, and the spores with vitality are dropped by airplanes.

Qi Zheng had seen the laboratory culture of the spores of the liverws before, using a plastic film as the spore attachment base, collecting the spores and cultivating them indoors with the inclined flow method, and peeling them off after cultivating the embryosporophyte, so that they could be sown in the sea.

Because of his eagerness to produce results, Qi Zheng did not buy microspores this time, but micro-maturities that had been cultivated in the farm, which had grown to 1 to 2 centimeters after cultivation.

Under the gaze of everyone, the plane traveled back and forth to the outer seas, dropping the cultivated sporophytes.

Of course, this is not like scattering seeds on land, just scattering these sporophytes.

Macroalgae are also algae, just like moss, they need to cling to something in order to grow faster and better, if they float in the sea, a few big waves are estimated to float to the horizon......

The plane dropped a piece of submersible rafts, which are triangular and umbrella-shaped culture rafts with plastic racks and ropes, which contain a substrate for the rapid growth of macrophyte sporophytes, which can provide the sporophytes with the energy needed for initial growth, and can also become a climbing object for mature macroalgae.

Unlike the shallow sea rafts used in Jiagu to breed mutant moss, they can be adjusted to the depth so that they are always in the best water layer for farming, so that they can best absorb sunlight and grow faster.

Unlike other seaweeds, giant algae can grow at depths of several hundred meters, and they prefer to grow on rocks on the bottom of the sea, especially below low tide.

Qi Zheng did not sow macroalgae throughout the fishing grounds, especially in the "bays" formed by Pishan Island and Upper and Lower Lang Jue Islands, because the waves are extremely small and shallow, which is more suitable as a coral reef diving and sightseeing area.

Macroalgae are cultivated only in the outer seas, which occupy two-fifths of the exploitable sea area, at sufficient depth.

And because they grow fast and have a high demand for energy, they can't be planted too intensively, otherwise they will lead to exhaustion and fishing.

If it is sown normally, some of these giant algae spores will be eaten by marine organisms, and some of them will not be able to develop, and they will be swept into part by the current, and at most 40% of them will be left.

Someone's cheating!

Under the "Green Bamboo Lark Array", the giant algae seedlings in the depths of the seabed seem to have been beaten with chicken blood, and the seedlings are a few centimeters long and shoot out, and a main stem is the first to grow, the color is tender and green, the thickness is about the same as the little finger, and it is extended at a speed visible to the naked eye.

At the same time, the "Bibo Qinghua Array" continues to drain and send sufficient nutrients to the giant algae - as a small expert in seawater purification, as long as the growth conditions are suitable, it can continuously "eat" a large amount of carbon, nitrogen and phosphorus in the seawater, so that the surrounding sea area has reached the standard of first-class water quality.

Giant algae is one of the fastest-growing marine plants, growing 30 to 60 centimeters in a day. Now the spirit array is powerful, it can grow more than one meter a day, and it only takes a few months for the giant algae to grow to tens of meters.

At that time, a wave rolls over, and giant algae can be faintly seen floating in the water, like countless long arms that are constantly dancing.

The key is that they have a long lifespan, they can live up to 12 years, and if you want to harvest the macroalgae, it is like cutting leeks, harvesting leaves and vines in a steady stream.

After successfully surviving in this area, the algae are transformed into a "forest" on the seabed, covering the entire area and creating a natural high-quality fishing ground - the vigorous, long-bodied giant algae with a floating canopy that is very attractive to some precious seafood such as tuna, sea cucumbers, abalone, etc., which can lure them to come to bait and roost.

Of course, while macroalgae are spectacular, other cyanobacteria, green algae and brown algae such as sargassum are also important, as they are the main food of herbivorous or omnivorous fish.

The cascade growth of seaweed makes the sea around Pishan Island flourish like a pasture on land.

Professor Zhou witnessed this great change and praised Jiagu in his evaluation report to the government: "This is the concrete practice of the company's ecological mission, and its vigorous implementation of the coral reef ecological project and algae forest algae farm project can be called the ecological wealth involving the national economy and people's livelihood, and its value is immeasurable......

However, Qi Zheng still needs to think more.

From primary algae to small fish and large fish, a quantitative balance must be achieved between seaweed and animals to ensure the ecological balance of the ocean.

The current climate is quite suitable for the rapid growth of seaweed, although it attracts many small fish and shrimp in the surrounding seas, but the really valuable fish still need to be artificially stocked.

The sowing of seaweed seemed to really unveil the prelude to the construction of the fishing ground, and Qi Zheng began to spend money like water.

......