Why do sharks have mercury in their fins, and why do sharks have a lot of mercury in their bodies

Most of the mercury in shark fin comes from polluted seas.

Untreated wastewater.

In recent years, because industrial wastewater has been continuously discharged into the ocean, the oil entering the marine environment every year is as high as more than two million tons, so that the heavy metal content in the seawater is higher, and the shark is at the top of the marine food chain, after swallowing and fighting other fish, the heavy metals in the food will also enter the shark's body and accumulate, so the content of heavy metals in the shark's body will be more and more. Tributyltin is a compound used in antifouling coatings for ship hulls and has been found in the kidneys of sharks caught off the coast of Italy. Metallic elements such as cadmium, lead, and arsenic have also been found in tissue samples of several shark species in the Eastern Mediterranean.

In 2001, a spot check of shark fins at Bangkok's Chinatown market showed that 7 out of 10 shark fins contained high levels of mercury, with the highest level being 42 times the allowable amount. In 2008, spot checks in the Hong Kong market showed that 8 out of 10 shark fins contained high levels of mercury, with the highest level being 4 times the allowable amount. Cooking does not remove the toxicity of mercury or other heavy metals.

After eating shark fin, mercury and other heavy metals enter the human body, which is difficult to be excreted, but accumulates in the body, which can damage the central nervous system, kidneys, reproductive system, etc., resulting in dizziness, headache, muscle tremor, mouth ulcers, kidney damage, sexual dysfunction, miscarriage, etc.

Shark fin is the fin of a shark. The fins of fish are equivalent to human limbs, and sharks that lose their ability to move freely in the sea will starve to death or be eaten by other fish.

According to Pew Environmental in the United States, the global shark fins** behind shark fins are responsible for the killing of 73 million sharks every year. Fishermen even cut off the shark's fins and then threw the sharks that were still alive into the sea. Sharks that have their fins cut off will slowly die from lack of oxygen at the bottom of the sea.

Last year, Pew Environmental reported that the top 10 countries and regions killing sharks in the world were Indonesia, India, Spain, Taiwan, Argentina, Mexico, Pakistan, the United States, Japan and Malaysia. Now, the Arabian Peninsula is one of the new, world's largest shark fin sites.

Shark fin is cruel! Shark fins are removed from live sharks! Then the shark's body was discarded, and it slowly lost blood and drowned, and was tortured to death.

The so-called shark fin (fin) is the filamentous cartilage in the shark fin, which is processed from the shark's fin, and eating shark fin is a status symbol in China, in fact, shark fin does not contain any nutrients, and in terms of the current degree of ocean pollution, shark fin contains more mercury than in the past. From the perspective of modern nutrition, shark fin (i.e., cartilage) does not contain any nutrients that the human body is easy to lack or value, so eating shark fin is a unique Chinese vanity cultural phenomenon.

Shark fin is poisonous.

Shark fin is first of all tasteless on its own, and is often bleached before being sold to make it look more edible. Since sharks are at the top of the marine food chain, they accumulate in their bodies with extremely high levels of mercury, which can cause nerve problems, kidney failure and infertility. Measurements in Hong Kong found that shark fin contained 10 times more mercury than safe.

The World Health Organization also recommends that pregnant women and children avoid shark fin to prevent permanent brain diseases.

Every year, 100 million sharks are hunted, of which 6.4 million are hunted for shark fins alone.

Sharks are key to maintaining the balance of the marine ecosystem. If sharks at the top of the marine food chain continue to be removed, marine ecosystems could collapse. The world is 70 percent water, and the oceans are responsible for most of the carbon dioxide in the air.

China is currently the world's largest importer of shark fin, and with the improvement of the living standards of the Chinese people, shark fin is no longer exclusive to a few, but according to a survey report cited today by Shanghai Yicai**, shark fins are contaminated with mercury to the extent of up to 70 percent, and the consumption of shark fins is causing the global shark population to be wiped out. The report was jointly published by WildAid and the China Social Survey Institute (SSIC). The cabin was filled with only a small fraction of the fins of the shark's massive body.

In the distant Caribbean Sea or the Atlantic Ocean, shark fishing boats are in pairs, often returning with a full load every time they go out to sea. The cabin is filled with only a small fraction of the shark's massive fins, which make up five percent of the shark's body and are used as a source of shark fin for luxury goods. Fishermen, large or small, cut off the dorsal fin, two pectoral fins and part of the caudal fin alive with chainsaws on the deck, and then threw the bleeding shark back into the sea, because the cabin was not that large for shark meat.

Compared to the high profits that shark fins can generate, shark meat is not economically valuable. Wang Xiaojun, a researcher at the China Institute of Social Survey, said that in order to save costs, fishing teams usually operate on the spot at sea, with fresh shark fins being put into freezers. These sharks are thrown back into the ocean and sink into the deep sea, unable to swim or feed, in pain, starvation, bleeding, and finally dying in the depths.

In China's catering industry, shark fin is still unshakable, and many restaurants display the largest shark fin in the most eye-catching place in the lobby to flaunt it.

The shark fin is the fin on the shark's body, which is equivalent to the arms and feet of a person, and the shark that loses its fin is thrown back into the sea, just like a person who loses his hands and feet and is thrown aside, how can he live? Sharks swim on their fins.

Shark fins are shark fins, equivalent to human arms and feet, sharks without fins are thrown back into the sea, sinking into the deep sea, unable to swim, unable to feed, bleeding non-stop, and finally dying in the deep sea.

Shark fins are currently harvested by cutting off the fins of live sharks and throwing them back into the sea to fend for themselves. As we all know, the shark does not have a swim bladder, and it can only keep it from sinking by constantly swimming. When it has no fins, it can only descend until it dies.

Because shark fins are the fins of sharks? If a shark doesn't have fins, of course it will die.

Shark fins are cut from sharks, which are shark fins.

Thailand's International Environmental Monitoring Department recently conducted a detailed study of shark shark fins and found that these shark fins contain a lot of mercury. In the report, the department said:"Shark shark fins in Thailand and some other countries** around the world are actually harmful, but consumers are unaware of them.

Australia and New Zealand have also recently issued warnings to their residents not to eat shark meat as much as possible. Most of the mercury in shark fins comes from polluted seawater, and sharks are at the top of the food chain, so they accumulate more and more mercury in their bodies.

Because excessive intake of mercury can affect the production of brain and nerve cells in infants, eating poisonous sharks is the most harmful to pregnant women and their babies.

It's really hard to say now **No polluting ......

A study by an environmental investigation team has shown that shark fin soup contains high concentrations of the toxic substance mercury, which is harmful to the human higher nervous system. Two randomized toxicity tests on shark fins sold in Bangkok have shown that shark fins, a delicious and high-quality nutritional product, are up to 70% contaminated with mercury, containing 42 times more mercury that can be absorbed by the human body. The ** of mercury is untreated wastewater.

Australia and New Zealand have also issued warnings, especially to pregnant women who try not to eat shark meat. Excessive intake of mercury can be very harmful to pregnant women and their babies, especially the production of brain and nerve cells. Most of the mercury in shark fins comes from polluted seawater, and sharks are at the top of the food chain, so they are always able to accumulate more and more mercury in their bodies.

The person in charge of the Guangzhou Aquarium introduced a study on shark fin by the Department of Ecology and Taxonomy of the University of Hong Kong. Studies have found that shark fins contain much higher levels of mercury or other heavy metals than other fish. This is because humans are constantly discharging wastewater from industrial processes into the ocean, which leads to high levels of mercury and other heavy metals in seawater, which also affects marine life.

Sharks are at the top of the marine food chain and tend to accumulate large amounts of contaminating toxins in their bodies. In addition to the possibility of male infertility, mercury can also damage the central nervous system and kidneys if the level is too high in the human body. Therefore, eating more shark meat and shark fin may be harmful to the human body.

According to a report by the Huffington Post this morning, a new American study shows that shark fin production not only makes a large number of sharks endangered, but also may cause Alzheimer's disease because of high concentrations of neurotoxins.

Humans hunt sharks mainly for food and medicinal purposes, for example, shark fin is popular in Asia, it is a symbol of wealth and status, and its ** is also extremely expensive.

The reason why shark fin can be eaten is because shark fins contain a kind of vermicelli-shaped wing tendons, which contain about 80% protein, fat, sugar and other minerals, but it is difficult to absorb, so eating an egg absorbs more nutrients than shark fin. Driven by profiteering, sharks are hunted in large numbers for valuable cooking ingredients.

In 1999, three species of whale shark, basking shark (also known as elephant jiao) and man-eating shark were listed in Appendix II of the International Convention on Endangered Species of Wild Fauna and Flora (CITES), and social activities are strictly prohibited. In 2001, the relevant departments of Guangdong Province listed whale sharks and basking sharks as key protected species of aquatic wildlife.

The United States, Canada and other countries have implemented shark conservation programs. Since 2004, more than 60 countries have banned the production of shark fins (fins), and Ecuador, a major exporter of shark fins, has also terminated the activity.

Many species of sharks are on the verge of extinction due to massive hunting by humans. A new study has found that declining shark populations can have a significant impact on marine ecosystems, with other fish species undergoing significant morphological changes, such as smaller eyes.

Many of the small fish in the ocean have large eyes and powerful tail fins that help them spot and evade sharks quickly. However, researchers at institutions such as the University of Western Australia have found that when shark populations have decreased significantly, the eyes and tail fins of small fish have also become smaller.

The researchers sampled the fish in two reefs and measured the body length, width, and eye and tail fin sizes of the fish. It was found that the Scott Reef cohort had 46 smaller eyes and 40 smaller tail fins than the Raleigh Shoal fish.

Eye size is important for fish to spot predators such as sharks, especially in low-light environments where sharks are present to hunt underwater; A certain size of the tail fin allows the fish to suddenly accelerate and escape from the shark. The study found that the reduction of shark numbers by humans has significantly changed the size of other fish's body parts.

Because people have to eat some parts of sharks, such as shark fins. Shark fin is the filamentous cartilage in the shark's fin, and it is a seafood treasure made from the shark's fin. Sharks are at the top of the marine biological chain, and they have eaten a lot of other fish in their lives, and a lot of mercury and heavy metals have accumulated in their bodies, so shark fins contain mercury and should not be eaten more.

The psychological motivation of consumers to consume shark fin is mainly "to show personal taste or identity", and "high-grade shark fin can bring help to personal career or health".

Sharks have been on Earth since 300 million years before the appearance of dinosaurs, and they have been around for more than 500 million years, and they have barely changed in nearly 100 million years. Sharks, known as sharks, sharks, and sand fish in ancient times, are behemoths in the ocean, so they are called "wolves in the sea". There are also whale sharks, great white sharks.

At present, there is a lot of thought that shark cartilage (i.e. shark fins) is high in protein, but this is wrong. Eggs have far more protein than shark fin. Because of the wrong concept of human beings, sharks have been hunted in large numbers for decades, and experts analyze that if this continues, sharks will become extinct, please protect sharks.

It is okay to eat shark fin, but it is also harmful to the human body because shark fins contain a certain amount of neurotoxins.

In the final analysis, profit is driven by profit, so that there are always people who hunt and kill them, for the sake of fish bones, other parts of the fish can be eaten or sold for money, etc.

These people always think that the ocean is so big that it doesn't matter how many you kill. Even if there is so-called, as long as you can make money, you can't care about it, and your wife and children are still waiting for money to buy rice at home.

There are a lot of surfers in foreign countries, but sharks kill surfers, so kill sharks to protect humans.

The primary school text "The Fisherman of Xisha" teaches us to be brave enough to kill sharks.

Because of the sinful shark fin market!! Don't eat shark fin, save the sharks!