Why Don't Goldfish Spread in South American Rivers? Seeing Goldfish Eat Each Other, It's Because Fish Are on the Menu
In China, the goldfish is an invasive species, especially in some southern rivers. Goldfish have become the dominant predators in the rivers, consuming other fish eggs and threatening native fish species, and have become a disaster. In its native habitat – the rivers of South America, the goldfish cannot spread, because the South American rivers have many predators of the goldfish, one of which isthe giant otterin the rivers of South America, otters are on the fish's menu.
On humans' menu, fish are also a common dish in people's meals, but people cannot eat goldfish because goldfish consume other fish's excrement and other unsanitary food, as long as it's edible, goldfish will eat it, sogoldfish are very unhygienicand the taste of goldfish is also very bad, very fishy, so goldfish are not eaten by people.
In China, people introduced goldfish to clean up aquarium garbage, but due to indiscriminate release, plusthere are few natural enemies of goldfish in Chinese riversand people do not eat them, the goldfish in the wild easily multiply, ultimately leading to a disaster and ecological crisis.
In the rivers of South America, the giant otter's appetite is very amazing, they need to eat a lot of fish every day. According to data, the weight of a giant otter can reach 20 kilograms, anda giant otter needs to eat about 4 kilograms of fish a dayso otters will continuously catch fish as a predator, as a predator of fish.
The giant otter catches fish regardless of fish species, it is on the fish's menuin human's bad taste of goldfish, even if the goldfish has not much meat on it, it is still a food for otters.The giant otter is a dominant force in the rivers of South America, and it is a top predator in the river, relying on the gregariousness of the and the cunningness of the, including the ferocious piranhas are the food of the giant otter. A group of giant otters dare to chase caimans, even jaguars and snakes don't dare to hunt giant otters in groups.
In the food chain, the troublesome goldfish makes people feel headache, in the otter's eyes, goldfish is also a delicacy. In fact, goldfish in South America also has many enemies, includinglarge caimans also balance goldfish
so in its original habitat, goldfish has no chance to spread and no ecological hazard!Pay attention to six-dimensional nature, follow nature naturally and recognize nature!
