My Deep-sea Fishery

This is also one of the important reasons why Xiang Yang is resolutely unwilling to take this harp seal back.

Harp seals that are accustomed to eating Antarctic krill and other cold-water fish are almost impossible to feed after they are brought back.

After all, after leaving Antarctica, Xiang Yang couldn't get krill for this harp seal.

The adult krill is only suitable for living in relatively high temperature and low salt waters. Its suitable temperature range is only 0.64 degrees Celsius to 1.32 degrees Celsius. If the temperature is higher than 1.80 degrees Celsius, it may bring fatal danger to it.

Therefore, Antarctic krill is only suitable for living in the relatively cold waters around Antarctica, and there is no trace of Antarctic krill in the sea far away from Antarctica.

"Brother Yang, how about we stop feeding it Antarctic krill this time and give it something better?" Fang Youqun asked suddenly.

Xiang Yang suddenly burst out laughing, "Do you think that Antarctic krill is not a nutritious seafood?"

In fact, the nutritional value of Antarctic krill is extremely high.

Although Antarctic krill is a shrimp, its shrimp shell is a component of crustaceans and insect shells.

After preying on Antarctic krill, harp seals can use special enzymes to degrade chitin for energy.

In addition, for humans, Antarctic krill is also very precious.

For example, the control, prevention and elimination of diseases rely on vaccines and chemotherapeutic substances, all of which require the use of Antarctic krill.

For some diseases no effective treatments have been found. For example, there is no clear and effective prevention and treatment for a disease that occurs in salmon farming in Chile and a disease that seriously affects shrimp farming around the world, but the shell of Antarctic krill can cure that disease.

In addition, Antarctic krill can also promote the intake of substances for animal immune function.

The shell material of Antarctic krill includes complex polysaccharides like chitosan.

Chitosan is a derivative of chitin, which is found in krill. Chitosan, added to feed or injected, can be used as an immunostimulant for salmon and trout. Chitin is a proven stimulant in many organisms to boost the immune system, and krill is one source of chitin.

Someone once did an experiment, using Antarctic krill to feed ordinary shrimp.

Adding krill to the diet in the experiment can greatly enhance the growth rate of shrimp.

In addition, studies have shown that adding krill to salmon and trout diets can directly promote the health of their spawning and reproductive offspring, reducing mortality and fungus.

Other applications of krill include capsule food for juvenile shrimp and prawns, special ingredients in marine and tropical fish feeding, and as a food attractant to increase food intake.

In addition, Antarctic krill can also be made into dried Antarctic krill.

Dried Antarctic krill is made of selected high-quality and precious live shrimps grown in the cold waters of Antarctica without any pollution. It is a real green food. It plays an important role in the food chain of the Southern Ocean and is the source of seals, whales, penguins and various fish It is also an important marine biological resource.

Dried Antarctic krill is processed from freshly caught krill within 1 to 5 hours, and processed by freeze-vacuum drying under sterile conditions.

Dried Antarctic krill fully retains the rich nutrition and delicious taste of shrimp.

Since dried Antarctic krill is a pure natural substance without any additives, it is still the top fish feed. It is easy for fish to absorb, and the enzymes contained in krill promote the digestion of fish, and the water quality can be kept clean for a long time.

Xiang Yang said all these.

Fang Youqun was immediately stunned, "How can these Antarctic krill that are everywhere be so precious?"

"Affordable price does not mean that there are no good products. After all, what is valued in the market is that the rarest is the most expensive. It used to be very cheap when there were many yellow croakers. Look at the price of yellow croakers now." Xiang Yang said with a smile.

It can be said that Antarctic krill is definitely a first-class aquatic product except that the shrimp shell will produce a substance harmful to human body after death.

Fang Youqun nodded quickly, "Okay, then we'll feed it Antarctic krill for a few days."

"Well, let's do this, get a bigger water tank, put a few big ice cubes in it, let it stay in the water tank first, and then clean its wound twice, and wait for its wound to grow new flesh , this seal will be safe." Xiang Yang said with a smile.

It is the nature of seals to bite ice, but they have lost their teeth, so naturally they can no longer bite.

After the harp seal recovers from its injuries, it will be more difficult to hunt. Fortunately, there are a lot of Antarctic krill in this sea area, so it won't starve to death no matter what.

Although the crew members were very reluctant to part with this poor and cute seal, but Xiang Yang had already spoken, so naturally they dared not object any more.

Gao Chuang saw it from the beginning to the end, he clicked his tongue and said in amazement: "This is the first time I have seen someone catch a harp seal and release it again. Do you know how much its fur is worth?"

Xiang Yang smiled, "Mr. Gao, let's stop discussing this matter. Harp seals are the most numerous of all seals, but even so, there are not many of them now. These are species that are about to become extinct. , just let them go."

"Anyway, your people arrested him, so you can deal with it up to you." Gao Chuang said casually.

Then Gao Chuang tightened his warm clothes, looked at the sky a little anxiously and said: "Why do I feel that the snow is getting bigger and bigger, but please don't freeze the whole sea surface for me, then we can see that it's really troublesome."

"Isn't there an icebreaker?" Fang Youqun asked doubtfully.

"The function of the icebreaker is to allow us to clear some ice-covered roads on the waterway, but it does not allow us to sail on the ice directly, and it is not a nuclear-powered icebreaker." Gao Chuang said helplessly.

The reason why these icebreakers have gradually changed from scientific research to civilian use, and some have even been transformed into tourist ships, is that they were eliminated by scientific research laboratories.

Nowadays, almost all the icebreakers used in Antarctica by those countries with strong national power are nuclear powered.

Xiang Yang smiled, "Don't worry, if it's going to freeze, this sea area will freeze already, and there's no need to wait until now."

"I hope so." Gao Chuang said worriedly.

Xiang Yang smiled and didn't talk. From Xiang Yang's point of view, this is at most an ordinary snowfall. As long as there is no blizzard, a little snow will not pose any threat to Xiang Yang.

However, due to the heavy snowfall in the sky, the temperature became colder.

Xiang Yang was wearing thick warm clothes, but he still felt that his hands and feet were getting cold, and his face was even red from the cold.

"Let's eat Antarctic krill later." Xiang Yang suggested.

Antarctic krill contains various nutritional metal elements, including calcium, phosphorus, potassium, sodium, etc. needed by the human body.

In addition, the eyeballs of krill are also rich in carotene, eating a little will help keep out the cold.