CATDOLL : CATDOLL: Top 10 most ferocious fish in China? Top 10 fish that are banned from breeding in China?

1. What are the top ten most ferocious fish in China?

Answer: 1. Yangtze River sturgeon

2. Alligator Gar

3. Arapaima

4. Yangtze River Catfish

5. Yangtze River Culter

6. Squid

7. Snakehead

8. Sea Bass

9. Mandarin fish

10. Pelteobagrus fulvidraco.

2. What are the top ten banned fish species in China?

1: snapping turtle, scavenger, piranha, alligator gar, wheatear fish, hairtail, pomfret, sardine, Spanish mackerel, small yellowtail...

2: These cannot be farmed and are extremely dangerous, and some are not suitable for fresh water

3: For example: The alligator snapping turtle is one of the largest freshwater turtles in the world and the largest freshwater turtle in North America. It mainly lives in the waters of the southern United States.

They can remain submerged for up to three hours. Females only come to the surface when nesting.

Alligator snapping turtles are opportunistic carnivores and will eat carrion. In northern states, such as Michigan, hatchlings will even eat plants. They usually do this when food is scarce or in the summer. As they mature, they become omnivorous and are not a threat to fish populations. Fishermen praise their ability to catch fish (luring prey with their tongues). Small fish are often the source of food for hatchlings. They will eat just about anything. They primarily eat fish and dead fish, invertebrates, carrion and amphibians, but will also eat other animals such as snakes. Alligator snapping turtles in captivity will eat any meat, including beef, chicken and pork. Adults have also been known to prey on small alligators.

Although alligator snapping turtles do not bite people normally, they can bite off people's fingers if threatened, so be extra careful. When they are caught, they release a musky smell. As alligator snapping turtles are an alien species, they are large and aggressive, so they have no natural enemies in China.

3. What are the top ten endangered fish species in China?

10. Atlantic Halibut

Atlantic halibut (Hippoglossus hippoglossus), scientifically known as Atlantic flounder, is found in the North Atlantic Ocean and is the largest of the flatfish species.

Atlantic halibut: Victim of bycatch

They can grow up to 50 years old, reach a length of 2.5 meters, and weigh more than 300 kilograms. Because they reach sexual maturity late (10-14 years old), their population structure is particularly vulnerable to damage due to overfishing.

The bottom-dwelling nature of Atlantic halibut makes them easy targets for fishermen to capture as a by-catch during bottom trawling.

9. Striped Scorpionfish

The striped scorpionfish (Sebastes fasciatus), also known as the Atlantic redfish, lives in the North Atlantic Ocean at a depth of 70-600 meters above the sea surface.

This fish can grow up to 50cm in length and live up to 50 years.

Striped scorpionfish do not reach sexual maturity until they are 8-9 years old. Trawling in the past 10 years has resulted in a large number of striped scorpionfish being caught before they begin to reproduce, which has had a huge impact on the continuation of the striped scorpionfish population.

Coupled with the illegal fishing by pirates and fishermen in local waters, the protection of this fish has not been effectively carried out.

8. Pectoral roughy

The roughy seabream (Hoplostethus atlanticus), also known as longevity fish and orange seabream in China, is mainly produced in New Zealand, Australia, South Africa and the Donggang waters of Taiwan, my country.

Long-lived fish: Extremely long lifespan puts it at risk of extinction

This is a long-lived fish that can live to over 150 years old. Because of this long life span, they reach sexual maturity at the age of 20-32. When too many juveniles are caught, the number of the entire population will decline rapidly.

The nutritional value of the roughy is very high. The fish meat contains a variety of trace elements needed by the human body and is high in protein, low in fat and low in cholesterol. However, after more than 20 years of commercial fishing, the number of this species has dropped significantly.

7. Winter Ray

The winter skate (Leucoraja ocellata) is a very cool fish that can use electric discharges to stun prey or scare off predators. It is mainly found in the northwest Atlantic.

Winter rays can grow up to 1.5 meters in length and have a lifespan of about 20 years, but they reach sexual maturity very late and do not begin to reproduce until the age of 11.

This fish can be made into fish meal for the feed industry and can also be used as bait for lobster farming, so it is fished in large quantities. As overfishing continues, the number of this species has also decreased significantly. In the 1980s, this species was listed as critically endangered (CR) by the World Conservation Union, and people began to protect them.

According to a 2017 survey, the species is now recovering well and is no longer overfished. However, due to its short lifespan and late sexual maturity, the population structure of this species is still vulnerable to disruption and needs continued protection.

6. Rare-spined flathead scorpionfish

The rare-spined scorpionfish (Sebastes paucispinis) lives in the eastern Pacific Ocean from Alaska to California, Mexico, and inhabits rocky bottom waters.

This fish can grow up to 90 cm in length. Although it only needs to grow to 4-5 years old to reproduce, with the changes in ocean currents and temperatures in recent years, the survival rate of young sparse-spined scorpionfish has become increasingly low.

Although there is currently a complete ban on fishing of this fish, scientists estimate that even if fishing is completely stopped, it will take about 100 years for the species to recover to normal populations.

5. European sturgeon

The European sturgeon (Huso huso) lives in freshwater areas of northern Europe and is the largest of all freshwater fish.

Adult European sturgeons can grow up to 7 meters in length and weigh more than 1 ton. They have a long lifespan and can live to be over 100 years old.

Their eggs are called "real caviar" and an adult female European sturgeon can produce 200 kilograms of eggs at a time, so they have high economic value, but this also leads to overfishing.

European sturgeon caviar is very popular

In addition to fishing pressure, the European sturgeon has also been affected by habitat loss, with the species losing 90% of its spawning waters over the past few decades. Its population is expected to continue to decline.

4. European eel

The European eel (Anguilla anguilla), found primarily in the North Atlantic, Baltic and Mediterranean Seas, faces unique challenges.

European eels lay their eggs in the ocean, so they hatch in the ocean, and then they swim inland to fresh water. When they reach sexual maturity, which is anywhere from 6 to 30 years old, they may return to the sea to spawn, and after laying their eggs, the European eel dies.

Small eels swimming inland

When their route to the ocean for reproduction is temporarily blocked, they will choose to return to freshwater life (without reproduction) and wait for the next breeding trip. Those European eels that do not reproduce throughout their lives can live to over 50 years old.

This unusual reproductive behavior means that any live European eels caught at sea have not yet spawned, and overfishing could easily lead to a devastating collapse of the population.

3. Giant Grouper

All groupers in the ocean are threatened in some way, but goliath groupers are particularly threatened.

There are two species of giant grouper, the Atlantic grouper (Epinephelus itajara) and the Eastern Pacific grouper (Epinephelus quinquefasciatus).

As the name suggests, giant grouper is large in size, with the largest individual growing to over 2.5 meters in length and weighing more than 360 kilograms.

Epinephelus elaphus

Because their breeding period is very short, they produce fewer offspring, and the young fish are easily caught during fishing, so the population of this species has declined rapidly in the past few years.

2. Maltese Ray

The Maltese ray (Leucoraja melitensis) is a rare fish that can only be found in the Strait of Sicily (between Italy and Tunisia), and its range is shrinking.

Like other rays, Maltese rays grow slowly, mature sexually late, and have very few offspring.

Maltese rays are not targeted by commercial fishing vessels, but they are easily caught accidentally and then thrown back into the water to fend for themselves.

Coupled with the slow response of local governments, the number of this species has continued to decline.

First place: Bluefin tuna

Bluefin tuna (Thunnus thynnus) is distributed in the temperate and tropical waters of the Atlantic, Pacific and Indian Oceans, as well as in my country's East China Sea. It may be the most representative endangered fish.

4. What are the top ten fish dishes in China?

China's top ten fish dishes, each representing a kind of life

1. Squirrel fish:

It is a famous dish in Suzhou, famous for being praised by Emperor Qianlong. It has a luxurious appearance, sweet and sour, and crispy, and is the taste of a rich man flirting with a girl.

2. Braised fish:

It is the most common home-cooked fish dish in the country, it is the first fish dish made by my parents, and it is the taste of our home.

3. Steamed sea bass:

It is a Cantonese delicacy. Through steaming, the deliciousness of the sea bass is brought to the extreme, and it tastes like an old cow eating young grass.

4. Pickled fish:

It is the pioneer of Chongqing Jianghu cuisine. Using it to soak rice is like young men and women, and it is the taste of first love.

5. Boiled fish:

It is the most ordered dish in Sichuan restaurants. It is fresh, fragrant, spicy and numb, and it tastes like falling in love with someone you can't help but love.

6. Sweet and Sour Carp:

It is a classic Shandong dish and an indispensable delicacy at banquets. It is sweet and sour and delicious, and it is the taste of lovers.

7. Peony fish fillet:

It is a famous Sichuan dish, named after the shape of the finished product which resembles a peony. It is elegant and luxurious, and tastes like a treasure in the palm of your hand.

8. Lotus fish fillet:

It is a famous Huaiyang dish, with egg white and fish fillet blended together, like a lotus flower emerging from clear water without being stained, it has the taste of mutual support.

9. Fish head with chopped pepper:

It is one of the most famous Hunan dishes. The fresh and tender fish head is steamed with chopped pepper. It is sour, spicy and refreshing, and it tastes like an old lover under the moon.

10. Fish fillet in sauce:

It is a Shandong cuisine. Emperor Zhu Zaihou loved to eat this dish. The Empress specially sent a royal decree to recruit chefs to the palace to cook this dish. It is the taste of the rich and powerful.

5. Chinese fish?

There are 804 species of freshwater fish native to my country, of which 632 species belong to the Cypriniformes order, accounting for 77.2% of the total; followed by 84 species of Siluriformes, accounting for 10.4% of the total; 56 species of Perciformes, accounting for 6.9% of the total; 22 species of Salmoniformes, accounting for 2.7% of the total; and 7 species of Acipenser. There are more than 50 species of major freshwater economic fish that are common and have high production in inland waters, including species unique to my country such as black carp, grass carp, silver carp, bighead carp, etc.

6. How are Chinese fish classified?

There are more than 3,000 species of fish in my country, including more than 1,000 freshwater fish, 632 species of Cypriniformes, accounting for 77.2% of the total; followed by 84 species of Siluriformes, accounting for 10.4% of the total; 56 species of Perciformes, accounting for 6.9% of the total; 22 species of Salmoniformes, accounting for 2.7% of the total; and 7 species of Sturgeons.

my country's fish are mainly distributed in the East China Sea, South China Sea, Bohai Sea, Yangtze River, Yellow River, Pearl River and other river basins across the country.

7. What are the top ten invasive fish species in China?

1. Gar

The gar is native to North America. It is a large, ferocious freshwater fish that will attack and feed on other fish. It is called the "water killer" together with the piranha. In the wild, the gar is between 2 and 3 meters long, has hard teeth and a crocodile-like mouth, rough skin, thick meat and extremely bad taste. Because the gar is highly adaptable and grows fast, there are very few other fish in the waters where they live.

2. Scavenger

The scavenger is an omnivorous fish, mainly kept in aquariums to clean moss, algae, benthic animals and garbage in the water. However, if this fish reproduces in large numbers, it will devour other fish eggs and cause the extinction of other fish. At present, there is no natural enemy in China. Once it appears in natural waters, it is easy to cause the extinction of local native fish. This case has already occurred in my country. After scavengers were released into some waters in the south, only scavengers are now breeding in the water, and other native fish are rare.

3. Egyptian mullet

Egyptian catfish, also known as Egyptian catfish, is a species of fish introduced from abroad for breeding in my country. Compared with local catfish, it is larger, grows faster, is easier to reproduce, and has strong adaptability. It can weigh more than 4 kilograms after being raised for one year.

4. Green sunfish

Although this fish looks like a crucian carp, it is not a crucian carp. The green sunfish is even more terrible. Whether it is an adult or a juvenile, they will eat other fish eggs and small fish, which is really destructive to other fish species.

5. Sawtooth carp

Sawtooth carp, commonly known as the red-cheeked diamond water tiger, is a kind of ornamental fish piranha. It is native to the Amazon River Basin in South America and is a ferocious carnivorous fish. Compared with some other well-adapted fish, this fish has poor cold resistance and can easily die as long as the temperature is below 15℃, so there is no need to worry about it spreading in the water.

6. Tilapia

Grown tilapia are still very cute to anglers, but the most annoying thing is the baby tilapia. The finger-sized tilapia will eat anything, as long as the hook is in the water, even corn kernels and raw wheat kernels can be swallowed in one gulp.

7. Wheatear fish

The distribution of the wheatear fish is very wide, and it can be found in almost all freshwater areas. But specifically, wheatear fish are more common in still waters and waters with low water transparency, while wheatear fish are less common in waters with fast currents and deep waters. There are more wheatear fish in ponds with more aquatic plants, because it eats a large number of fish eggs attached to the aquatic plants.

8. Big-bellied Fish

The big-bellied fish was originally introduced into the country because it can kill mosquito larvae. However, due to its rapid growth, it has now become a biological disaster (listed as one of the world's top 100 invasive alien species).

The mosquito fish was introduced to Taiwan in 1911. After being introduced to the mainland in the 1920s, it has thrived in the Pearl River Delta and established a firm foothold. As the saying goes, it is easier to invite a god than to send him away. The mosquito fish grows faster than yellow croaker. The number of eggs a sexually mature mosquito fish can carry is 700,000 to 2 million, and each female fish can produce 200 to 300 eggs per year. It has affected the structure of local plankton, insects and crustaceans.

8. Did fish originate from sea water or fresh water?

freshwater

In the Paleozoic era more than 400 million years ago, the ancestors of fish lived in shallow waters near the coast. After a long period of evolution, they spread to the deep sea and fresh water.

As the first vertebrate on Earth, fish first appeared in the Ordovician period about 480 million years ago, but fish fossils did not appear in large numbers until 420 million years ago. It was previously unclear where fish were during this gap. This study, published in the latest issue of the American journal Science, fills in this missing link in the study of evolutionary history.

The researchers examined more than 2,700 fossil records of jawed and jawless fish from the middle Paleozoic era and used data modeling to predict their habitat types. The results showed that fish have acquired a wealth of adaptations in near-shore shallow waters.

Lauren Saran, a paleontologist at the University of Pennsylvania and co-author of the paper, said that from early jawless armored fish to sharks to human ancestors, all originated near the coast, closer to the coast than coral reefs.

The study showed that soft-bodied fish were more mobile and settled in the deep sea in the next 20 million years, but armored, less mobile fish continued to live near the coast, and some migrated to fresh water, where some evolved into early tetrapod terrestrial vertebrates.

9. Can humans use marine fish to desalinate seawater?

Yes, because fish living in the ocean have a type of cell called "chloride-secreting cells" in their gills. When seawater passes through the gills, the "chloride-secreting cells" can quickly desalinate very salty seawater. Not only that, marine fish can also desalinate seawater through the "electroosmotic membrane method". The epidermal mucosa, oral mucosa and endoluminal mucosa of marine fish are all semi-permeable membranes. When fish drink seawater, they are isolated in the cavity by the oral mucosa and endoluminal mucosa. The pressure difference during breathing allows water molecules to penetrate the mucosa into the body, while salt cannot pass through and is excreted from the body. If a small amount of salt enters the body, the fish body can also ionize the sodium chloride in the water molecules through its own bioelectric effect, forming positive and negative ions that seep out of the mucosa. The seawater desalination device currently used by humans was developed by scientists based on the principle of the "electroosmotic membrane method" of marine fish.

In order to improve the desalination function, some large fish such as sharks have another ability to desalinate seawater. In addition to drinking less seawater, their blood also contains a high concentration of urea. Since the concentration of body fluid is higher than that of seawater, it can not only maintain the high osmotic pressure of body fluid, but also increase urine output to remove excess water from the body.

10. Fish that enter sea water from fresh water?

One species of salmon is born in fresh water, grows in sea water, and returns to fresh water to spawn.

For example, migratory fish such as salmon are of this type, but Pacific salmon only need to mature twice in their lifetime, entering sea water from fresh water when they are born, and entering fresh water from sea water when they become adults. This is because Pacific salmon will die after entering fresh water to reproduce, while Atlantic salmon will not, and can mature many times in their lifetime!

Therefore, the fish swimming in the Yangtze River have their own unique abilities, and each hydropower station will prepare fish ladders for migration, because migratory fish need to return to the area where they were born to spawn. Some fish may spawn downstream due to changes in their migration routes caused by hydropower stations. But in any case, setting up fish ladders for migration is definitely helpful to the ecological environment and will not cause any harm.