The fleet broke the waves and came with the wind, and Wei Hang stood on the deck, somewhat proud and high-spirited. This is the capital of their own competition for the ocean, and they will definitely expand and form a formation in the future.

Suddenly, his face changed. Through Guò Haizhu, he has been able to envelop a radius of more than ten kilometers in his own senses, every movement and stillness, all under his control, but a little mental power.

The heavy situation in the sea area in front of him is a kind of marine pollution and a disaster, and he can't help frowning.

The fishing boat walked for more than 20 minutes, and the people on the fishing boat exclaimed.

"Why is the sea red in front of you?" the new crew members didn't quite understand the situation, and out of curiosity, they began to talk about it.

In addition, there was a foul smell blowing from the sea, and many people covered their noses.

", what, why does it smell like dead fish?"

"Red tide?" Daniel Zhang and the others looked at Wei Hang. To be honest, I have been to sea so many times, and I have heard the legend of the red tide, but I have never seen it.

Not to mention them, even Wei Hang witnessed the horror of the red tide for the first time, with a radius of more than forty nautical miles, all shrouded in the obscenity of the red tide, and countless sea creatures were devastated. Especially those fish, it was so miserable that even the sharks died and floated on the surface of the sea.

Wei Hang nodded, his face heavy, feeling the horror of this marine disaster.

Red tides, also known as red tides, are a bloom phenomenon. It is a kind of marine disaster, which refers to the sudden proliferation and aggregation of some tiny phytoplankton, protozoa or bacteria in the marine water body under certain environmental conditions, causing the discoloration of the water body within a certain range and a period of time.

"That's right! It's a red tide. Alas, the fish were almost dead. Wei Hang couldn't help but sigh.

"Death, it's not that exaggerated, right?" Ren is Tang Dehui and the others had heard of the horror of this kind of disaster, and when they heard this, they couldn't help but gasp.

Wei Hang smiled bitterly and shook his head: "It's not an exaggeration at all, not to mention fish, even some beneficial microorganisms are also difficult to escape fate." ”

He knows too well. When a large number of red tide organisms accumulate in the gills of fish, the fish suffocate and die due to lack of oxygen.

Moreover, after the death of red tide organisms, the algae consume a large amount of dissolved oxygen in the water during the decomposition process, leading fish and other marine organisms to die due to lack of oxygen, and at the same time, a large number of harmful gases and toxins will be released, which will pollute the marine environment and destroy the normal ecosystem of the ocean.

Finally, some blooms of seaweed release toxic substances, just as they do when they are dumped into the ocean. How many creatures still survive?

Even if sharks and other sea fish that swim extremely fast quickly escape from this purgatory, they will be poisoned, and whether they can survive depends on their luck.

"Let's go! I can't ask for any seafood in the vicinity. Wei Hang said.

Some of the toxins secreted by red tide seaweed can directly lead to the mass death of marine organisms, and some can even be passed through the guò food chain, causing food poisoning in humans.

However, Chen Jianliang is still calm, and he has seen Chichao several times.

Actually, red tides are not so mysterious. It's happened many times in China, but it's just not reported much.

At present, more than 30 countries and regions in the world have been affected by red tides in different ways, and Japan is one of the countries that have suffered the most.

For more than a decade. Due to the increasing marine pollution, the red tide disaster in China has also aggravated, from a few scattered sea areas to a large number of sea areas. Some important breeding bases have been particularly affected.

Gu Haichao, who was sent by the Tao expert, looked distressed and sad, watching all the fish on the sea die. As if he was dying, he felt very uncomfortable.

The study and prevention of the occurrence and danger of red tides involves a variety of disciplines such as biological oceanography, chemical oceanography, physical oceanography and environmental oceanography, and is a complex system engineering.

Therefore, seeing this kind of thing, he is also powerless. The only thing that can be done is to notify Tangjia Village and tell them that there is a red tide in this location, and let people investigate and study it to see what the cause is, so as to prevent the spread of this kind of thing as much as possible and reduce the loss of the ocean.

"Huh, why is it yellow over there?" and some people noticed some differences.

"Depending on the species and number of organisms that cause red tides, the water sometimes takes on different colors such as yellow, green, brown, and not just red. Wei Hang explained.

"Is it caused by industrial pollution? What kind of industrial pollution is there around here?" Daniel Zhang couldn't understand.

"It doesn't have to be industrial pollution, it's also a natural phenomenon. ”

Red tide is a natural phenomenon that can also be caused by human factors, and may not necessarily be a harmful ecological phenomenon. Sometimes, it can be regarded as a kind of ecosystem regulation!

When the content of a certain substance in the seawater is too high, red tides will erupt, and that part of the material will be consumed, but a lot of marine biological resources will be sacrificed. But in the face of the vastness of the ocean, this small area of the sea is almost negligible.

The content of nutrients such as nitrogen and phosphorus, trace elements such as iron and manganese, and organic compounds in the waters has increased greatly, which has promoted the proliferation of red tide organisms.

In fact, to put it bluntly, it is caused by the eutrophication of the seawater in the vicinity. And the eutrophication of this area of water is not necessarily man-made.

"Wait!Xiao Hang, it seems that there are sea lions over there, they are not dead yet, go and save them!" Gu Haichao pleaded loudly.

Everyone looked over and had to say that this guy's eyesight was good, if they hadn't looked carefully, they really wouldn't have found the sea lion struggling.

"Hmm! Wei Hang commanded.

Let him spend the time to save the sea creatures in this area that have not yet died, that is impossible, but it will not be saved if he sees death, so he will save it when he sees it by the way.

"Thank you! Thank you!" Gu Haichao breathed a sigh of relief.

If Wei Hang is troublesome, he has no choice, he can only feel guilty in his heart.

Sea lions do not have gills, but breathe through the guò lungs, and they are a group of sea beasts, not fish. Therefore, it is not surprising that you can survive under the red tide, as long as you don't drink those seawater poisoning, you should be fine for the time being.

The group of sea lions was also smart, and when they spotted fishing boats, they approached this side, and some even rolled on the surface of the sea to make noise and make humans notice them.

"Haha! These guys are good enough. Chen Jianliang said with a smile.

These are intelligent creatures, their beards are more intelligent than their ears, and they can distinguish voices from dozens of miles away. Perhaps, I noticed the arrival of fishing boats early and swam here all the time?

When they came to the neighborhood, they put down their nets and scooped up all the sea lions, twenty-five in all.

The sea lions didn't struggle and waited for human rescue. Put them all on the deck, Gu Haichao immediately stepped forward to inspect them, and found that several of them had been poisoned.

"Trouble. He frowned slightly.

"Poisoned? Can't see it!" Daniel Zhang leaned over.

"Of course you can't see it. These heads are poisoned, but not deep. I don't have any antidote right now. Gu Haichao said in embarrassment, as for letting Wei Hang return and send him back to Tangjia Village, it was a fool's dream.

"What should I do?" he said, grabbing his hair, and said in anguish, his hair, which had been combed smoothly, was about to turn into a chicken coop.

Wei Hang couldn't bear it, and asked, "You won't die for the time being, right?"

"If it's taken care of, it should be fine for a few days. ”

"That's easy, there will be a lot of fishing boats coming and going in this direction. If you encounter it, just transfer it to the fishing boat that is returning to the ship and send it back. I really haven't encountered it, so I'll send it to Dongsha. Wei Hang said.

When Gu Haichao heard that it was a good way, he nodded.

More than 20 sea lions were polite to their saviors, and there were no bites or anything like that.

Generally speaking, sea lions are very wary of strangers, and will make a high-pitched voice to warn humans who intrude into their territory, and if they don't listen, they may attack.

"Take some squid out and give them a meal. Wei Hang commanded. The crew hurriedly moved some seafood out of the warehouse, which had been dragged up from the previous road.

"These sea lions, fur seals, and seals all look alike!" Muzi began.

Qian Wenji had already gone home, and the playboy didn't come out, Yun Rulong had already been called back to "study", so a few sons were left with him and Fang Feifei to join in the fun.

Gu Haichao explained with a smile that the roar of sea lions is like lions, and some species have manes on their necks, which are quite like lions, so they are known as the "lion king of the sea". Its four legs are like fins, making it ideal for swimming in water. The sea lion's hind feet can bend forward, allowing it to walk nimbly on land and crouch on the ground like a dog. Seals, on the other hand, have their hind limbs that are constantly stretched backward and cannot bend forward, so they cannot walk on land.

"Fur seals resemble sea lions, with a downy body and a short face. Fur seals, unlike sea lions, do not learn art. But because their fur is soft and beautiful, they are often hunted by hunters for huge profits. ”

"Does that mean that the sea lion is a powerful faction, and the sea seal is an idol faction?"

"Uh! Gu Haichao was stunned for a moment, then nodded, and felt that this was interesting.

"These are still very small!" Everyone noticed that almost all of the poisoned were young beasts.

A few female beasts are taking care of them, very dedicated.

And Gu Haichao told everyone, don't look at these sea lions taking good care of the cubs, it's just for their own children.

The female beast is cruel to her cubs that are not her own, and not only does not nurse them, but also picks them up with her teeth and throws them away. If this happens to be discovered by the mother of the cub, a fight will start between the two females.

A large number of sea lions were taken in, and everyone no longer stayed, this place is not a place to stay for a long time, and it is uncomfortable to smell, and it is even more uncomfortable to watch.

The fishing boat walked for almost an hour before breaking out of the red tide, which shows how strict this red tide is.

Along the way, they saw many large sea fish dying on the surface of the sea, and the red tide was as cold as the plague. (To be continued......)