Recently, in the waters of Duchang Songmen in Poyang Lake, the "mysterious species" helio that has disappeared for nearly a decade was surprised. According to relevant experts, helios were also one of the important economic fish in the Yangtze River Basin at the beginning, but due to various factors, the number of breeding races has dropped sharply, and even to the point of endangerment. Is today's discovery a hope of recovery, or is it a flash in the pan?
<h1 class="pgc-h-arrow-right">“神秘物种”鳤鱼何许鱼也？ </h1>
Helio: commonly known as: Diao Zi, Wheat Straw Diao, Chang Diao, Diao Rod, Class Name: Teleost fish, Order Name: Cyprinal Order, Family Name: Carp Family, Genus Name: Heels. The body is slender and approximately tubular. The head is small and tapered. The mouth is small, the end is located, the mouth crack is straight, and it is not necessary. The dorsal fin has no hard spines and its starting point is opposite the ventral fin. The caudal fin is deeply forked, the back of the body is bluish green, the abdomen is silver, and there is a pale yellow-green longitudinal band above the middle of the body; the even fin and fin are orange, and the caudal fin is gray-black. It resembles an eel, but has a mild temperament.
Heels are migratory fish that enter lakes from July to September each year and return to the rapids of the river to reproduce during the reproductive season. The reproductive season is 4-6 months, and the age of sexual maturity is 3-5 winter ages. Spawning sites need to have running water, and cannot reproduce in still water. Although the growth rate is not fast, the largest individual only reaches more than 10 kg, and the common one is mostly 0.5-1 kg.
Helios can be said to be carnivorous fish, the main food source, or feed on small animals in the water, such as aquatic organisms, small fish, small shrimp, etc.!
How did < h1 class="pgc-h-arrow-right" > go from glory to endangerment? </h1>
Among the fish in the Yangtze River Basin, the heli fish once became the most important economic fish species, and it is also known as the "Three Fresh Fish of the Yangtze River", and has also been on CCTV's "China on the Tip of the Tongue".
But why did such a delicious taste go from glory to endangerment?
In fact, it is really not difficult to understand this problem, the reason is also very simple, here, let's talk about the most important factors!
Reason 1: Under the delicacy, how can there be a good ending? Indeed, once it is linked to delicious food, then its fate must be insufficient. After all, no matter how fast it reproduces, it also needs a growth process. However, it is not difficult for us to find from the growth process of helios that the reproductive ability of helios is really not outstanding. So at this point, coupled with the crazy fishing of those who are smoked by those who are interested in profit, it is conceivable that their situation can be better? So, why less? Malicious fishing is one of the keys!
Reason two: caused by environmental pollution, perhaps, for this reason, many people may not agree. However, on the whole, it is not without purpose. In fact, it is not difficult for us to understand that for many fish species, the factors of water quality can affect its reproduction to a certain extent. Many migratory fish often have very high requirements for water quality. Therefore, if the water quality is destroyed by pollution, then it will not only affect their reproductive ability, but also directly affect themselves!
Reason three: the migration road is blocked and broken, the helix are migratory fish in the rivers and lakes, and the biggest key to hindering the rivers and lakes in the Yangtze River Basin today is the interception of the dam. Think about how big a blow to migratory fish should be in the Yangtze River today, due to the obstruction of the dam. The most famous national treasure fish in the Yangtze River, the white sturgeon, its extinct is not a factual case? At the same time, wild Chinese sturgeon, white-tipped dolphins and other migratory fish are all advancing along the footsteps of white sturgeon!
Therefore, even if the hemorrhoids of Poyang Lake appear now, the prospects are still not optimistic. After all, its road to survival is still blocked, and it is really difficult to rebuild its glory.
<h1 class="pgc-h-arrow-right">十年禁渔，能否助其恢复往日盛况？ </h1>
It has been more than a year since the ten-year ban on fishing on the Yangtze River was promulgated. To be honest, this ban is indeed commendable. Since the founding of the Country, it has been so severe and important this time.
In order to highlight its determination to rectify the ecological environment of the Yangtze River, the fishery department joined forces with a number of law enforcement departments to strike hard, destroy and confiscate a variety of large-scale fishing equipment along the Yangtze River, as well as punish a number of fishing gangs. Fundamentally curb malicious fishing behavior, at the same time, in order to better protect the ecological environment of the Yangtze River. Not only for the fishing industry, but also for fishing behavior, there are also regulations.
In this way, of course, it is really impossible for you to say that there is no effect. Nowadays, there are frequent successful reports in many places in the Yangtze River Basin, which proves that during the fishing ban, the fish resources in the Yangtze River waters are gradually recovering.
And now, the helio that has disappeared for nearly a decade has also appeared, although it may be a flash in the pan, but it is not certain that with the passage of time, the recovery of their race will really get better and better. In the end, though, we have to wait, after all, time passes minute by minute. There is always hope!
<h1 class="pgc-h-arrow-right">文章最后！ </h1>
Ten years of fishing ban, but also the Yangtze River fish ten years of return to the road, this road for some fish will go very stable, very peaceful. However, for most migratory fish, the ten-year return road is still not so easy. After all, they have to overcome not only natural factors, but also the pressures of dams. Therefore, if they want to truly restore racial reproduction, they need not only the protection brought by the ban on fishing, but also the need for them to re-embark on a new path of prosperity. In the end, we can only wish them well, hoping that ten years later, in the Yangtze River Basin, we will hear more good news about them!
I am yes Feng, a keen fishing angler, like my attention likes, comment messages, thank you for reading!!!