目前，美国小城市巨无霸金鱼的当地官员已经崩溃：停止放生野生金鱼。

“野生”金鱼能长多大？伯恩斯维尔是美国明尼苏达州明尼阿波利斯市以南15英里的小镇，最近发布的“巨无霸”金鱼照片会让你大吃一惊。

图片来源：伯恩斯维尔市社交媒体账号截图

伯恩斯维尔的官方推文写道，“请不要再把宠物金鱼扔到池塘或湖泊里了！它们可以长得比你想象的大得多，并通过搅动底部沉积物和连根拔起植物来破坏水质。”

最近几周，由于收到居民的投诉，伯恩斯维尔市和附近的苹果谷启动了水质调查，结果令他们感到惊讶。当地自然资源专家卡莱布·阿希林（Kaleb Ashlin）表示，“当你从湖里钓到足球那么大的金鱼时，很难想象它和店里卖的小金鱼是同一物种。”

专家们指出，开放水域中的金鱼远不像他们在鱼缸里时看起来的那样“对人和动物无害”。它被视为一种“入侵物种”，可以快速繁殖，迅速超过当地生物的数量，并破坏环境。

事实上，金鱼可能没有“亚洲鲤鱼”那么出名，但它已经成为美国乃至世界上许多水体中日益严重的问题，澳大利亚等地

明尼苏达大学研究入侵物种的专家指出，近年来金鱼的问题越来越普遍。金鱼可以活到25岁，它的一些特征非常适合“野外生存”，例如，它可以在冬天的冷冻水下生存，也可以几个月没有氧气。专家们认为，这些特征“使金鱼非常强壮，可以主宰一个地方的生态系统。”

此外，金鱼一旦入侵水体，就可以在附近的水体中繁殖，而且由于其超强的繁殖能力，很难根除

At present, the local officials of Big Mac Goldfish in small cities of the United States have collapsed: stop releasing wild goldfish.

How big can "wild" goldfish grow? Burnsville, a small town 15 miles south of Minneapolis, Minnesota, USA, will surprise you with the "Big Mac" goldfish photos released recently

Photo source: screenshot of social media account in Burnsville

The official tweet of Burnsville wrote, "Please don't throw pet goldfish into ponds or lakes any more! They can grow much larger than you think, and destroy the water quality by stirring the bottom sediment and uprooting the plants."

In recent weeks, the city of Burnsville and the nearby Apple Valley have launched water quality investigations because of receiving complaints from residents, and the results have surprised them. Kaleb Ashlin, a local natural resources expert, said, "When you catch goldfish as big as football from the lake, it is hard to imagine that it is the same species as the small goldfish sold in the store."

The experts pointed out that the goldfish in the open water is far from "harmless to humans and animals" as they looked when they were in the fish tank. It is regarded as an "invasive species", which can rapidly reproduce, rapidly exceed the number of local organisms, and destroy the environment

In fact, the goldfish may not be as famous as the "Asian carp", but it has become a growing problem in many water bodies in the United States and even in the world

In addition to Minnesota, they are found in the waters of Virginia, Washington, Canada, Australia and other places

Experts who study invasive species at the University of Minnesota pointed out that the problem of goldfish has become more and more widespread in recent years. Goldfish can live as long as 25 years old, and some of its characteristics are very suitable for "survival in the wild", for example, it can survive under the freezing water in winter, and it can also have no oxygen for several months. Experts believe that these characteristics "make the goldfish very strong and can dominate the ecosystem of a place."

In addition, once the goldfish invades a water body, it can breed in the nearby water body, and it is difficult to eradicate because of its super fertility