China News Service, July 14th. According to the US Chinese website, how big can "wild" goldfish grow?

Burnsville, a small city 15 miles south of Minneapolis, Minnesota, USA, recently released the "Big Mac" goldfish photos that will surprise you.

Image source: Screenshot of Burnsville's social media account.

　　The official Twitter of Burnsville wrote, “Please don’t throw pet goldfish into ponds or lakes anymore! They can grow much larger than you think, and they can be destroyed by disturbing the bottom sediments and uprooting plants. Water quality."

　　In recent weeks, Burnsville and nearby Apple Valley have started water quality investigations after receiving complaints from residents, and the results surprised them.

Caleb Ashlin, a local natural resources expert, said, “When you catch a goldfish the size of a football from the lake, you can hardly imagine that it is the same species as the small goldfish sold in the store.

　　Experts point out that goldfish in open waters are far from the “harmless to humans and animals” that they look like when they are in a fish tank.

It is regarded as an "invasive species" that can reproduce rapidly, the population quickly exceeds the native creatures, and damage the environment.

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

　　In addition to Minnesota, Virginia, Washington, Canada, Australia and other places have their presence in the waters.

　　Experts from the University of Minnesota researching invasive species pointed out that in recent years, the problem of goldfish has become more and more widespread.

Goldfish can live as long as 25 years old. Some of its characteristics are very suitable for "survival in the wild".

Experts believe that these characteristics "make goldfish very powerful and can dominate the ecosystem of a place."

　　In addition, once a goldfish invades a body of water, it can reproduce in the adjacent body of water and is difficult to eradicate due to its super fecundity.