The wind blows the surface of the lake, and it is green.

Unlike the natural green, when cyanobacteria appear in abundance, the surface of the water is covered in thick algae, and endless small algae come together and look disgusting.

And when the wind blows the surface of the lake and produces waves, the blue-green algae floats from south to north, piling up on the edge of the lake like a layer of green putty powder, with a foul smell that makes people feel uncomfortable.

It can be said that natural green is dollar bill green, and bloom green is overhead green, giving people a completely different feeling.

Ao Muyang felt that this thing had nothing to do with Wangjia Village, the bloom was a natural disaster, although it was violent this time, but it should mainly be that the water body of Ambergris Lake was rich in nutrients, causing cyanobacteria to explode as soon as they were overgrown.

Ao Mudong didn't see it that way, he said: "Dragon, let me tell you that someone is definitely making trouble, think about it, this lake has just been contracted by you, and you ran into this moth." There has never been such a bloom in the past ten or twenty years, and if no one is a demon, then I don't believe it. ”

"No one has to be a demon, no one can be a demon, poisonous fishmeal, but there is no algae enrichment powder. A voice sounded, Ao Muyang turned around, but it was Su Penghui who came.

Su Penghui looked at the surface of the lake, with a relaxed expression on his face: "This is the early stage of the bloom outbreak, and it is not serious, but there are many fish, shrimp and crabs in your lake, so you have to deal with it quickly." ”

Cyanobacteria are food for fish, shrimp and crabs, but they are also killers, and their collarella algae can quickly produce lethal factors, destroy the gill tissue of fish, interfere with the normal progress of their metabolism, paralyze nerves, and make them die.

In addition, individual species of cyanobacteria are not only poisonous in living organisms, but also biotoxins will be produced by the decomposition of dead individuals - cyanotoxins, microcystins, etc. When the amount of these toxins is large, it can directly cause the poisoning and death of the breeding object, and can also harm the breeding object through the accumulation effect of the food chain, until it endangers the human body.

If there is not enough sunlight into the lake to photosynthesize the vegetation in the lake and release dissolved oxygen, then the night crabs, pearl mussels, and all kinds of fish in the lake will have problems.

Su Penghui is worthy of being a relevant expert, and he quickly formulated a treatment plan: "First of all, Xiao Ao, you quickly contact the silver carp and bighead carp fry and put them in the lake." The silver carp and bighead carp eat blue-green algae, which kills two birds with one stone, allowing them to destroy blue-green algae and feed the big fish. ”

Ao Mudong scratched his head and said, "Temporary cramming, is this too late? How many days does it take for the fry to eat these things?"

Su Penghui said with a smile: "Yes, so I said 'first', this is a means of natural prevention and control, the green tide phenomenon is mainly prevention, it has repetition, and raising more silver carp and bighead carp is for the sake of the future." ”

Ao Muyang waved his hand to Ao Mudong and said, "Brother Dong, don't interject, let Teacher Su say, you go and contact the fish fry, I remember that there is a state-owned fish fry farm in the county, and it hasn't closed down, right?"

"No, but the dragon head, this big man is together, what are you not talking about?" Ao Mudong said with a hippie smile.

"Spicy, when is the next door still pulling calves with me?" Ao Muyang was annoyed for a moment, flew up and kicked him in the ass and kicked him into the lake.

Ao Mudong screamed all the way and braked all the way, and almost fell into the lake and was covered with blue-green algae.

Su Penghui said: "Secondly, you need to buy Bacillus algal lyticum and Bacillus lateralis, about one pound of water surface sprinkled on one acre, this thing is a microbial agent, and the impact on the environment is not so great." ”

Ao Muyang asked: "Do you want to start the aerator?" I am afraid that the fish, shrimp and crabs in the lake will die of lack of oxygen. ”

Su Penghui said with a smile: "The fish, shrimp and crabs in the lake are wild, and they will not be so squeamish. ”

Ao Muyang explained: "I have seen reports about this thing before, and it always says that it will cause losses in freshwater aquaculture, so I am more afraid. ”

Su Pengyu nodded and said: "Yes, they are indeed easy to cause hypoxia of aquatic organisms, but that refers to the breeding state, the density of artificial breeding is large, and the density of fish, shrimp and crabs in wild lakes is reasonable, and they will take the initiative to surface or go to live in waters where bloom pollution is not so bad, in short, this problem is not big." ”

Then there were other means, such as balancing the ratio of nitrogen and phosphorus, he asked Ao Muyang to buy water-soluble inorganic phosphorus to change the ratio of nitrogen and phosphorus in ambergris lake, and accelerate the cultivation of beneficial algae such as green algae and diatoms to grow rapidly into dominant algae species to inhibit the growth of cyanobacteria, thereby improving the overgrowth of cyanobacteria.

After proposing a series of measures, he sighed: "Now the global greenhouse effect, the weather problem is bigger, the temperature and water temperature are a little high, more than 25 degrees, the growth rate of cyanobacteria will be greatly improved than other algae, I have to talk to the Fisheries Bureau, let them issue a water temperature and high temperature warning, to prevent other farmers from losses." ”

Ao Muyang smiled bitterly: "Hurry up, our Ambergris Lake provides a vivid example for everyone." ”

From the end of May to the beginning of June, Longtou Village revolves around Ambergris Lake.

All the boating activities on the lake have stopped, how can this be done?

However, the boats were not idle, so Su Penghui arranged for the big guy to use a small-eye fishing net to drag the blue-green algae on the surface of the lake, and gather all the blue-green algae and transport it to the garbage boat.

This was not a palliative, but very palliative one, and hundreds of boats and rafts trawled in a ploughing pattern, and after three or two rounds the lake became clear again.

On Children's Day on June 1st, even the children of primary schools came to help, and of course Ao Muyang gave a reward, and the children who came to help collect blue-green algae could each get a shopping reward of 50 yuan.

Children can go to the small supermarket in Ao Mu City to buy things, as long as it is within fifty yuan, the village checkout.

The lake was in full swing for a while, and Ao Muyang felt that the green tide did not cause great disasters, but increased the cohesion of the village.

Ao Wenchang also had this view, he wrote a picture, called 'How difficult to prosper the country' hung in the village committee, Ao Zhiming felt unlucky, took it home to make a table cushion......

The Ambergris Lake is temporarily closed to tourists, so the tourists in the village spend more time on the sea.

In order to express the apology for the tourists who came to the village but experienced the bloom incident, and to express gratitude to the parents for bringing their children to travel on Children's Day, a number of activities at sea for three days in early June are free of charge or half price, such as half price for whale watching, the fish used to feed the whales are free, and the tickets for Ming Dynasty warships are also free.

After Du Tanzhi, who came to the village to check the progress of the resort's renovation, read the announcement, he said happily: "Lao Ao, you are really a little clever ghost, a good means to engage in tourism business." ”

Ao Muyang smiled helplessly: "Just be willing to bear the loss, what kind of good means is this?"

The ocean resort outside the village has been renovated, and the small wooden houses stand up along the beach, some with small pools with direct access to the ocean, and some have offshore platforms between them, and the taste of fishermen comes out.