Guanlan | Together, reflect on the out of control of crocodile cigarettes

In the past month, except for Ruzhou, Henan, in Beijing, Hunan, Guangxi, Jiangsu, Qinghai, Ningxia, Yunnan, Shandong and other places have reportedly found that crocodile crickets are distributed in urban communities or parks. Other fish and children were bitten. Some experts said that crocodile lack of natural enemies in China, and its individuals are very large. General aquatic animals are not its opponents. It can prey on local fish, which may cause the food chain to break. ("CCTV News" on August 29)

The accidental "popularity" of crocodile cigarettes gave the public a basic awareness of this species originally produced in the Americas. Everyone was racking their brains to find out whether there were crocodiles around them, what to deal with, and so on. However, before you figure out the question of "where is the crocodile", it is necessary to figure out where they come from and where they go? Perform an extension interpretation.

As a kind of freshwater giant carnivorous fish, the body length of crocodile can generally grow to 1.5 meters, and the reproduction ability is extremely strong. In addition, the crocodile bird "does not picky eaters", as long as it is a living creature in the water, it is almost common, and there are hard fish scales on the whole body, so it has almost no natural enemy in the natural waters. Before arresting crocodile crickets in Ruzhou, Henan, there were crocodile crickets across Guangzhou, Guangxi and other places across the country, but with the increasing situation of artificial breeding and human release, crocodile crickets appeared in China more in China. The number of times in the natural waters is getting larger and larger, so this time the crocodile storm of Ruzhou is more like a warning, that is, the invasion of crocodile crickets is no longer a small probability event.

Compared to the point -to -point ground, a better way to catch crocodile birds like "hitting a mouse" is actually to control the source and sales channel of crocodile crickets. According to media reports, the ornamental fish markets and farms across the country can see crocodile crickets. Many businesses are also breeding crocodile -related varieties, and they can be bought online and offline. Since there is a market, it shows that there is a demand behind it. Similarly, the reason why crocodile can quickly appear in many places across the country is that consumer purchase threshold is low, and the price ranges from tens of yuan online can buy it. To a crocodile, such trading channels are often hidden under the sight of the legal and market supervision authorities.

The "secondary disaster" with low consumption threshold is the loss of control of artificial release. For example, the reason why many consumers buy crocodile crickets is because it is introduced as an ornamental fish. Its special form meets consumers' strange psychology, but in general consumers, they do not have a crocodile. condition. As the growth of crocodiles grows and the amount of food becomes larger, many buyers will discard it because they cannot provide enough space to raise it, which will cause crocodile crickets to appear in the city's public river or park. From the perspective of consumers, this is a release, but for the ecological environment, it is a destruction.

In fact, in January 2021, five departments such as the Ministry of Agriculture and Rural Affairs jointly issued the "Further Strengthening the Prevention and Control Work Plan for Foreign Species", which mentioned that it is necessary to strengthen the supervision of the breeding links of foreign species of aquatic The comprehensive governance of migrants such as crocodile crickets. In August of this year, the Ministry of Agriculture and Rural Ministry and other relevant departments also formulated the "Notice on Printing and Distributing the Overall Plan of Foreign Invasive Species Census" to conduct a national census for 10 major foreign aquatic creatures, including crocodile crickets.

In other words, the so -called "release" is hypocritical, and the unknown to invading the species has caused a series of follow -up storms. In response to the current problems of crocodile crickets in many places across the country, while arresting it, it is necessary to take into account factors such as science, professionalism, and cost control, but more importantly, it is necessary to curb the sales channels of crocodile crickets from the source and strengthen the right right right. Its species and management. From the perspective of dealing with species invasion, whether it is crocodile and other foreign invasive species, it is necessary to emphasize the common participation of the whole society in order to better protect the ecological diversity. (Rui Xi)

Edit: Zhang Yu

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