The harm of biological invasion was mentioned in the previous issue, which should not be underestimated. At the request of netizens, this issue will talk about the species that have failed to invade. This is also thanks to the appetite of the vast number of gourmet foodies, which makes us all sympathize with these invasive species. Ha ha......
top3 Oysters
Oysters, commonly known as sea oysters, oysters, etc., belong to the mollusk phylum, bivalves, pearl oysters, is the world's largest farmed shellfish, is one of the important marine living resources available to humans, for the global distribution of species. Oysters are not only delicious and nutritious, but also have unique health care functions and medicinal value, and are a seafood treasure with high nutritional value. Oysters have the highest zinc content in human food. But it is flooded abroad, and it really doesn't make sense.
Oysters
Top2 crayfish
In 1927, Japan introduced the first crayfish with the aim of being used as feed for bullfrogs. About two years later, it was introduced to China, and the earliest breeding site was near Nanjing. In foreign countries, the destruction of ecology and flooding has become a disaster, and in China, it is necessary to rely on artificial breeding. The crayfish invaded and failed.
Stir-fry crayfish
top1 bullfrog
Native to North America, because the sound of the ox and named, was introduced to China from the United States cuba in the 1950s, and the bullfrog is also one of the list of invasive alien species in China, but the bullfrog is nicknamed "vegetable frog" in China, which is rich in nutrition and delicious taste.
Bullfrog hot pot
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