What species of puffer fish are non venomous and what are the varieties of puffer fish?

Blowfish. All are toxic, but the parts of the toxin distribution are different.

The toxins of pufferfish are mainly distributed in the ovaries and liver, followed by the kidneys, blood, eyes, gills and **. And the sperm nest and muscles are non-toxic. If the fish dies for a long time, the visceral toxins can gradually penetrate into the muscles when they dissolve into the body fluids.

The amount of the toxin varies depending on the season. The ovarian development period is from February to May every year, and the toxicity is strong. After laying eggs in June and July, the ovaries degenerate and their toxicity decreases. The liver is also the most toxic during the spring spawning period.

The toxin of puffer fish is at 100 degrees Celsius.

Heating for 4 hours or 115 degrees Celsius for 3 hours, or 120 degrees Celsius for 30 minutes, or above 200 degrees Celsius for 10 minutes, can completely destroy the toxin and the toxicity disappears.

On a large scale, there are more than 320 species of pufferfish in 92 genera and 4 suborders, 11 families and 11 families in the world, regardless of whether they live in rivers or not, they are collectively referred to as "pufferfish", and 106 species of 52 genera and 11 families are produced in China.

On a small scale, pufferfish refers to the pufferfish living in freshwater, in China, from Liaoning to Guangdong coastal areas live in more than 30 species of pufferfish, the common ones are: insect pattern Oriental pufferfish, striated Oriental pufferfish, lead spot Oriental pufferfish, moon belly pufferfish, redfin pufferfish, dark striped pufferfish.

How many species of freshwater dolphins are there in the world?

Five species: Baiji dolphin: distributed in China's Dongting Lake and the middle and lower reaches of the Yangtze River, and the Qiantang River is also distributed.

La pufferfish: lives in estuaries on the west coast of the Atlantic Ocean.

Sub-pufferfish: in the Amazon River basin and the Orinoco water system in South America.

Indian pufferfish: lives in the Indus, Ganges, Brahmaputra and Magna rivers (Pakistan, India, Bangladesh, Nepal and Bhutan).

Gangese River Dolphin: It is more widespread than the Indian river dolphin and is found in western India, Nepal, Bhutan and Bengal in the Ganges, Mekna and Bramaputra river basins, and the Gornopuri River in Bangladesh. It may also inhabit the Sengu River in Bangladesh and the Brahmaputra River, the source of the Brahmaputra River in China (the Brahmaputra River).

How powerful is tetrodotoxin? Puffer fish ** is poisonous? Why are puffer fish poisonous?

The ovaries, liver, and kidneys of puffer fish all contain toxins in their blood and are extremely toxic, and improper handling can cause toxic reactions, and no specific drug has been found for tetrodotoxin.

Puffer fish meat is not poisonous, and the taste is very delicious, but the internal organs, blood, eyes, gills and ** of puffer fish are highly poisonous, very toxic, and a very small amount can cause death.

Puffer fish is poisonous and very poisonous. Tetrodotoxin is a nerve poison, once poisoned, the patient has confusion, muscle paralysis, numbness, and respiratory failure in severe cases.

1. Almost all species of puffer fish contain trodotoxin.

2. Tetrodotoxin is one of the most toxic non-protein poisons found in nature, and the toxin is very stable. It has a paralyzing effect on the central nervous system and peripheral nerves.

3. Tetrodotoxin mainly exists in the gonads, liver, spleen, eyes, blood, and other parts of puffer fish. The ovaries and liver are highly toxic, followed by the kidneys, blood, eyes, gills and **, and the sperm nest and meat are mostly weak or non-toxic.

4. The meat of the puffer fish is particularly delicate, delicious, nutritious, and has high medicinal value, from the toxins of its liver and ovaries, it can extract pufferfish, puffer fish acid, puffer fish nest and other precious medicinal materials.

5. When cooking puffer fish, be sure to remove the internal organs and eyes of puffer fish strictly and carefully. Remove the gills of the fish, peel off the skin, remove the muscles and blood, and wash repeatedly with water.

Summary. The most venomous species of puffer fish is the short-nosed pufferfish, also known as the pufferfish. It contains a neurotoxin in its body, which is one of the strongest natural toxins known.

The toxins in the body of the short-nosed puffer fish are mainly concentrated in two pairs of sagittal glands, and each puffer fish contains about 8 mg of toxin. This toxin is highly neurotoxic to the human body, and the main toxic components are neuropeptides of four genera of proteins:1

TTX: This is a powerful sodium channel blocker, which can selectively block the action potential of neurons, inhibit the conduction of nerve signals between neurons, and cause cardiac arrest. 2.

PTX: This is an intracellular calcium modulator that interferes with calcium channels and the release of calcium ions, affecting neuronal excitability and signaling. 3.

CGTX: This neuropeptide mainly acts on sodium channels in neurons and affects the production and conduction of nerve impulses. 4.

BTX: This is a neurotoxin that blocks the neuromuscular junction and causes muscle relaxation and paralysis by inhibiting acetylcholine release.

The most venomous species of puffer fish is the short-nosed pufferfish, also known as the pufferfish. It argues that it contains a neurotoxin, one of the most potent natural toxins known. The toxins in the body of the short-nosed puffer fish are mainly concentrated in two pairs of sagittal glands, and each puffer fish contains about 8 mg of toxin.

This toxin is highly neurotoxic to the human body, and the main toxic components are neuropeptides of four genera of proteins:1 ttx:

This is a powerful sodium channel blocker that can selectively block the action potential of neurons, inhibit the conduction of nerve signals between neurons, and cause cardiac arrest. 2. ptx:

This is an intracellular calcium modulator that interferes with calcium channels and the release of calcium ions, affecting neuronal excitability and signaling. 3. cgtx:

This neuropeptide carrying deficiency mainly acts on sodium channels in neurons, affecting the production and conduction of nerve impulses. 4. btx:

This is a neurotoxin that blocks the neuromuscular junction and causes muscle relaxation and paralysis by inhibiting acetylcholine release.

You've done a great job! Can you elaborate on that?

These four toxins have a synergistic effect on the human body, which can quietly cause respiratory paralysis, cardiac arrest, muscle paralysis, etc., posing a serious neurotoxic threat. The symptoms of poisoning are very rapid, and can cause cardiac and respiratory arrest within a few minutes, which is highly fatal. Therefore, TTX is known as the "beast on the streets of Hong Kong".

Pufferfish refers to the bony fishes, pufferfishes, and pufferfishes. Its meat is delicious, nutritious, is a precious high-grade aquatic product, known as the "crown of dishes", but its ovaries, liver, kidneys, eyes, blood contain highly toxic, improper treatment or accidental ingestion, light poisoning, heavy death, so what are the varieties of puffer fish?

1. Insect pattern Oriental puffer fish, identification characteristics: the dorsal and ventral surfaces are smooth without back spines, the back of the body is gray-brown, with insect-like white patterns, the chest spot is small, the surrounding white spots, and a yellow longitudinal band under the side of the body. It is about 30 cm long and is a small species.

2. Striated Oriental puffer fish, distinguishing characteristics: dorsal ventral and body sides densely covered with fine spines, dark brown dorsal body, with multiple thin and light-colored transverse bands, and a yellow longitudinal band under the body side. It is 25 cm long and is a small to medium-sized species.

3. Puffer fish with lead spots: Distinguishing characteristics: the dorsal and ventral surfaces have weak small spines, the dorsal surface of the body is yellowish-brown, with small light-colored spots, 5-6 dark brown transverse bands, and a yellow longitudinal band below the side of the body. 25 cm in length, small species.

4. Lunar belly puffer fish, distinguishing characteristics: full back and abdomen mask strong small spines, body dorsal brownish-green, tail fin gray-brown or yellow, crescent-shaped. Overall length 50 cm, medium-sized.

That's it for the introduction of the varieties of puffer fish.

The types of puffer fish are Amazonian pufferfish, white-sided dolphin, Gangese pufferfish, Plata pufferfish, horned box porpoise, etc.

1. Amazon pufferfish.

The Amazon pufferfish, also known as the Amazon freshwater dolphin, pink pufferfish, pink freshwater dolphin, etc., is a species endemic to the Amazon River and the Orinoco River basin, and is the largest freshwater dolphin. Shrimp, crabs, and small fish are usually hunted on the river bottom, and smaller turtles can occasionally be caught.

2. White-sided dolphins.

The white-sided dolphin, also known as the white-sided whale, white-sided dolphin, white flag, white clip, blue-finned fish, Jiangma, Chinese finless porpoise, Yangtze finless porpoise and Yangtze river pufferfish, is an endemic freshwater cetacean in China, which is only produced in the middle and lower reaches of the Yangtze River. In the 80s of the 20th century, due to various reasons, the population of the white-sided dolphin plummeted, and it was known as the giant panda in the water.

3. Ganges dolphin.

The Gangetic dolphin is a freshwater dolphin that lives in India, Bangladesh, Nepal and Pakistan, and is divided into the Indus subspecies and the Ganges subspecies. At present, there are only about 2,000 to 6,000 people left in the whole world, and the Brahmaputra River in India is the most densely populated area of Gangese dolphins, with about 240 to 300 Gangese dolphins, which are very rare and precious aquatic animals.

4. Plata pufferfish.

Plata pufferfish, also known as Franciscana (Argentina, Uruguay), Toniha, Cachimbo, Labrata pufferfish, etc., are distributed in the southeast of South America and the Atlantic Ocean.

5. Horned box porpoise.

The body of the horned box porpoise is wrapped in bony plates, and the cross section is pentagonal. There is a horn-like long spine above the eye, which is longer than the diameter of the eye. The ventral edge of the banquet is prominent, and its posterior end has a posterior long spine.

Pelvic fins absent. There are no spines in each fin. There are round brown spots all over the body.

Juveniles have long caudal fins with rounded trailing margins and dark spots. The body is yellowish-brown and the abdomen is white. The body length is 10-25 cm.

Similar to the dorsal horn box, the horn-like spines in front of the eyes are shorter than the eye diameter, and there is a sharp spine on the dorsal surface of the body.