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Chapter 592 The Lifespan of Fish

Even so, it took Yang Hua more than an hour to finally pull the giant halibut to the edge of the fishing boat.

"What is this?"

Seeing the true face of this giant flounder, everyone on the boat was moved.

Even Yang Hua showed an incredible expression on his face very rarely, "Is this really a flounder? Not a new breed that looks like a flounder?"

Everyone on the boat will look at me, and I will look at you, and no one dares to confirm it.

It is true that everyone on this boat has seen flounder, and even everyone has eaten flounder.

However, the flounders I saw before were less than one pound of small weight, and the average one was only two or three pounds per. Even if it was large, it would be at most about ten pounds.

Now, this one, holding the grass, looks stronger than a cow, and is definitely far more than three meters long, and may even look three meters five meters long.

Is this really the same breed as the halibut I saw before?

It was Yang Hua who was the first to react, "Hurry, use a rope to cover its tail and pull it up from the water."

Then, Yang Hua looked at Li Xuan again, "Captain, is this a new breed or is it really a halibut?"

Li Xuan looked at the flounder carefully, "A such a big flounder, even if it is not a new breed, it is definitely not an ordinary flounder. If a flounder grows so big, it will take at least one hundred years even if it suffers from Giant disease. The average life span of a normal flounder is 64 years, and this flounder is abnormal."

"The average life span of flounder?" Chen Bin looked at Li Xuan as if he had discovered a new continent.

Li Xuan nodded, "Fishes also have a lifespan. No matter what, most of the lives, can never live forever."

Including many people who deal with fish every day, they have never seen a normal old fish.

Therefore, most people are vague about the lifespan of fish.

Especially fish raised at home generally do not have a long lifespan, and they are easily raised to death due to water quality and other reasons. It is difficult to see how fish die of old age.

In rivers and lakes, it is difficult for ordinary people to see fish floating up from old age, but huge fish are not uncommon.

As a result, many people have a series of problems, such as how long the lifespan of fish can be, whether they will continue to grow, and why it is difficult to see old and dead fish in normal times.

In fact, most fish have very short lifespans.

There are obvious differences in life spans of different species of fish.

For humans, forty days are fleeting.

However, for a body that is only five centimeters long, it is a life that needs to be cherished.

Fozarrei-tailed hornfish is currently the shortest known fish to live.

The average lifespan of wheat-eared fish with an average body length of 7 cm is slightly longer, which can reach three to five years.

The average lifespan of crucian carp with a body length of 20 cm can reach ten years, which is considered to be a relatively long-lived fish.

Marine biologists infer from the data of these fish that the lifespan of a fish is related to the body length of the fish.

Generally speaking, the larger the fish, the longer its lifespan should be.

But not all fish follow this general rule. This is just a simple inferred by marine biologists from known data and has not been verified experimentally.

For example, pikes have an average body length of about 60 cm, which is almost the same as that of a bluefish. However, the abnormality is that a bluefish has a lifespan of only about ten years, while the longest known pike is nearly two hundred years old.

Of course, the pike's two hundred years old is not recognized, it is only recognized by a small number of people.

Legend has it that in 1794, someone caught a pike in the Queen's Lake Pond in Moscow. Its gill cover was wearing a golden ring, and the book said: "Tsar Bolisfedovich released animals."

The dynasty of Tsar Bolis was from 1598 to 1605. Based on this time, the pike lived for at least two hundred years.

The reason why it has not been recognized by most people is that many people think that this is a deliberately prank. Whether the pike was released by the Tsar remains to be considered.

According to the theory of inferring the age of fish from body size, the largest existing fish is a shark whale, with an average lifespan of about 70 years. The average lifespan of Greenland sleeping sharks living in the Arctic Ocean is as high as 270 years, and the maximum lifespan reaches 400 years.

In general, fish life spans are uneven, short and long.

But biologists have developed a rough speculative interval.

Generally speaking, fish with body lengths below 20 cm usually have a lifespan of between one and five years.

Fish with body lengths in the range of 20 cm and 3 meters have a lifespan of between ten and twenty years.

The life span of fish over three meters is between fifty and four hundred years.

Although the lifespan of fish in different species varies greatly, most of them are concentrated between two years and two hundred years.

More than half of these fish live in five to twenty years.

So far, scientists have counted that fish that can survive for more than 30 years shall not exceed 10% of the total number of fish.

The average lifespan of marine fish such as halibut is counted by biologists is 64 years.

According to the normal growth rate of flounder, it takes sixty years for flounder to grow to a two-meter-long body.

Therefore, halibut more than two meters is very rare.

But the ultimate lifespan of the flounder with an average lifespan of 64 years is far more than 64 years.

Before this, humans discovered that the largest halibut recorded was 2.6 meters long. Scientists infer that the lifespan of that halibut was between 90 and 150 years old.

The reason why the lifespan of the flounder exceeds the average lifespan is that the living environment of the fish will also affect the lifespan of the fish.

Big yellow croaker can better prove this influencing factor. When a fish is in an environment that is not suitable for its survival, its life mechanism will be affected. Moreover, the fish's regulation ability is not very strong, so it is difficult to achieve their life expectancy.

Big yellow croaker can live for thirty years along the coast of Jiangsu and Zhejiang, while on the coast of Guangdong and Guangxi, it can usually only live for about fifteen years. When it reaches the eastern waters, it can only live for only 10 years. This contrast is very obvious.

Adding the Shanghai Ocean itself is a huge treasure, and the treasures that can indeed prolong life and prolong life are of great importance, so it is very normal and reasonable to occasionally appear one or two extremely long-lived fish.

After hearing Li Xuan's explanation, Chen Bin's eyes suddenly began to shine, "Brother Xuan, do you mean that there are treasures in the ocean that can prolong life?"
Chapter completed!
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