In the Indo-Ganges Valley, there is one species of fish that has begun to flood, and that is catfish. If you throw a handful of feed into the Ganges, the originally calm water surface is instantly like boiling boiling water, and thousands of catfish rush out of the water to rush to the surface of the water to grab food, and the food is looted in just a few seconds.
In the Ganges, catfish can grow up to 3 meters in length, and the Ganges catfish in India is flooded, so why don't Chinese foodies look red?
<h1 class="pgc-h-arrow-right" data-track="3" > catfish flood the Ganges</h1>
Catfish get their name from their long whiskers, which make them look like cats with hair, catfish are very adaptable to the environment, and can inhabit swamps, ponds, ditches, rice paddies and dirty and muddy waters in flooded areas.
Catfish are carnivorous fish, and most of the predators are small fish, such as meal strips, crucian carp, goby fish, wheat ear fish, carp, loach, etc., but also eat shrimp and aquatic insects. Mainly to swallow, the role of teeth is mainly to prevent food escape, catfish are very gluttonous, about 500 grams of juvenile fish will swallow a large number of crucian carp, carp, etc., the hotter the weather, the greater the amount of food, in cloudy days and at night activities frequently.
Catfish also have a long lifespan, reaching more than 70 years. Male catfish will hold the eggs laid by the female catfish in their mouths to hatch small catfish, thus ensuring the survival rate of the cubs.
The southern part of the Ganges River basin is the vast central plateau of the Indian Peninsula, and the southeast is the relatively narrow Bay of Bengal, which is not affected by the cold current from the north, affected by the tropical monsoon climate coming to the Indian Ocean, and the rain and heat are hot and rainy, which is very suitable for catfish life.
Since its introduction to India, catfish have begun their spread in the Ganges. At present, in the Ganges, catfish can be said to be flooded.
<h1 class="pgc-h-arrow-right" data-track="3" > grows to 3 meters in India, why don't Chinese foodies look red? </h1>
Since catfish flood in the Ganges in India and can grow up to 3 meters, why chinese foodies are not red-eyed, because the water of the Ganges is so dirty.
The Ganges is very polluted and affects the 400 million people who live near the river. Cities along the coast discharge wastewater into rivers, and industrial waste and sacrifices wrapped in indissoluble plastics deepen the pollution caused by flowing through densely populated areas, where 3 million cubic metres of sewage are discharged every day, less than half of which is treated by municipal sewage.
Among them, the biggest impact on the ecological environment is sewage waste containing heavy metal chromium. This heavy metal affects the nervous system of mammals, not only does it affect the ability of microorganisms to decompose.
The problem of water pollution is also exacerbated by the use of river water by the poor people around the river to bathe, wash and cook. In addition, India has such a custom of scattering cremation ashes into the river, and there are also people who directly throw dead bodies, relics and funeral objects directly into the river to be drifted, believing that this will help the deceased to get a better afterlife and even get "liberation" (Moksha) earlier.
Industrial wastewater, fecal sewage, and human and animal carcasses collided with each other and swerved forward in the Ganges, bringing odor and disease to the surrounding 400 million inhabitants.
In this case, according to the survey, the number of E. coli per 100 ml of Ganges water is 100,000, while the safety line published by WHO is 500. Pollution poses a threat not only to humans, but also to 140 species of fish, 90 species of amphibians and the endangered Ganges pufferfish.
How dirty is the Water ganges? As the most important of the Ganges' 32 tributaries, the Yamuna, has not seen any fish for 15 years.
So WHO warns that the use of Ganges water for drinking and bathing water is 6 times more likely than the average person to have skin and digestive diseases.
The environmental quality of fish farming and the quality of the bait determine the quality of the fish. These pollutants will be concentrated in catfish, greatly increasing the amount of heavy metal deposits in the fish, which is why Chinese foodies are not red-eyed.
<h1 class="pgc-h-arrow-right" data-track="3" > Chinese fish are abundant</h1>
China is a country with very rich freshwater fish resources, with a total of 1050 species of fish distributed in freshwater (including coastal estuaries), belonging to 294 genera of 18 orders and 52 families, of which 967 species are pure freshwater fish, 15 species of migratory fish in haihe rivers, and 68 species of estuarine fish. There are 110 species of catfish (catfish) in 10 families, 27 genera and 110 species of freshwater fish in China.
After the 1980s, China also imported 9 species of catfish (catfish) from abroad, including leather-bearded catfish, spotted bearded catfish, toad beard catfish, European six-whiskered catfish, Su's mangosta (basha fish), giant toothless catfish, spotted forked catfish, cloud-spotted catfish, longfin forktail catfish and other species.
China's catfish have formed large-scale, standardized, high-quality commercial fish, product processing, market relatively stable aquaculture fish species.
Although the Ganges in India is flooded, but the species is relatively single, India itself imports catfish from abroad, such as Vietnamese catfish imported from Vietnam, and Chinese foodies who have realized the free consumption of catfish will naturally not look at the catfish of the Ganges.
<h1 class="pgc-h-arrow-right" data-track="3" > Summary:</h1>
China has found more than 660 kinds of invasive alien species, the annual loss has been as high as 200 billion yuan, China's exotic organisms are many types, involving a wide range, 34 provinces (autonomous regions, cities) in the country have invasive organisms occurrence and harm, involving farmland, forests, waters, wetlands, grasslands, islands, urban residential areas and almost all other ecosystems, China's agricultural production, international trade, ecosystems and even human and animal health has a serious impact. These species include crayfish, bullfrogs, scavengers, etc.
Instead of worrying about the flood of catfish in India, Chinese foodies should first solve the invasive species in China.