The Three Gorges Reservoir was mothballed 19 years ago, and this is a real paradise for fish.
Today we are going to mention Three Gorges Reservoir. The Three Gorges Reservoir not only exists in verses of ancient poets, it has aesthetic value and literary value for us, but also provides us with economic value and fish resources. . Because until now the reservoir has been storing water for 19 years, and there was no fishing in these years, this place can be called a fish paradise, and some fish in it have grown beyond bounds of human imagination.
Let's take a look together.
1. Introduction to Three Gorges Reservoir
Three Gorges Reservoir is an indispensable key element in water conservation projects. When depth of reservoir reaches its normal value, the area of the lake formed by reservoir It can exceed a thousand square kilometers, and you can imagine how much living space fish have here.
According to survey, in order to save so many places, people who used to live on land under this water were forced to relocate, and some historical monuments were buried deep under water.
It is because of this behavior that some people stand on opposite side, and even think that it will damage local ecological environment and lead to very bad consequences, and some people also consider survival of fish.
This problem was naturally taken into account by designers at time, and they also took certain measures to protect these fish that could not escape. Let's take a look at it below.
Second, fish in pond
According to survey and other conditions, we can know that fish species are actually quite rich, some of most common fish in river are also found here, as well as relatively rare fish. , and relevant personnel also listed fish species here and counted fish species.
Due to ban on fishing here, no one can come to fish here, so fish grow very freely here, there are almost no natural enemies, no human intervention, and sometimes human feeding. be a very good rice worm life.
Such a quiet life makes them develop more unprincipled. Compared to fish in wild, they grow longer and have no natural enemies, so some fish here have grown very large, and some even live in wild. incredibly heavy.
However, people actually did not receive very accurate data and results, since fishing is prohibited. The reference to data we have is based on weight of fish caught near the reservoir. This was already several years ago. Someone was catching two herrings of shocking weight.
One weighs more than 300 kats, one weighs more than 400 kats, and even a bighead carp weighing more than 300 kats is also near reservoir, and these fish were not caught in same year. fish in the Three Gorges should not be much worse than these fish, and one might even say better.
Among these fish, it is worth mentioning a familiar fish: Chinese sturgeon. This type of fish also has a very large room for growth, and their normal weight can reach 300 kilograms.
You can imagine how huge Chinese sturgeon in Three Gorges Reservoir is, and it can even grow to over 600 kilograms. may roll over because fish may be larger than ship.
But among fish in reservoir, the strongest fish is not Chinese sturgeon. This is because this species of fish needs to return to upper Yangtze River to breed, experience countless hardships, and then breed in upper reaches. The Chinese sturgeon must grow here for a certain period of time before setting out on its journey.
Because their lifespan is relatively long among fish, if allowed to grow without human intervention, they can indeed grow to very large sizes.
But also due to human intervention, nutrients contained in water are not enough, so they cannot live to end of their lives, so this species of fish is rare. in reservoir.
Third, influence of reservoir on fish
This is not to say that completion of reservoir has no impact, and it cannot be said that it is entirely positive. Naturally, there will be some unfriendly moments. Take Chinese sturgeon for example, it needs to go back upstream, but no matter how long and heavy it is, it cannot be as simple as legendary carp jumping over dragon gate. After all, through Three Gorges Dam, height of Three Gorges Dam is very high.
Another influence is that composition of nutrients in lake also changes. The composition of lake changes with a series of movements, and accordingly fish will also undergo different changes, and species will also be different than before. Another impact is that river water becomes polluted and content of pollutants in reservoir increases, and there is no way to purify it, finally, it will be enriched in fish according to order of food chain, so it is not clear whether it can be eaten or not. .
In general, Three Gorges is a very beautiful place, and anyone can go on a trip. Maybe while traveling you can see fish flashing in river, which attracts people.