A duck billed sturgeon was found in the Qiantang River, it was a fish but it looked like a duck s be

The duckbill sturgeon has a similar feeding habit to the Chinese silver carp, which preys on zooplankton as bait and is a filter-feeding fish. It mainly preys on zooplankton and cladhorns, especially daphnia, and occasionally ingests small aquatic insects such as midges larvae. A sturgeon with a body length of less than 12 cm can eat zooplankton one by one, and can also eat small fish and shrimp; With a body length of more than 12 centimeters, its well-developed feeding organs are filter-feeding and can catch fast-swimming copepods.

The duckbill sturgeon is a cartilaginous fish, the body surface is smooth, moist and scaleless, the snout is spoon-shaped, and the shape resembles a duck's beak, so it is also called the duckbill sturgeon. Its snout is particularly long, flattened, and pulpy; The body surface is smooth and scaleless, the back is black, blue-gray, and often between a few spots; body light light brown on the sides, white abdomen; The mouth is large and the eyes are small, and the forehead is higher than the mouth; The gill rakers are dense and elongated, the operculum is large and extends posteriorly to the pelvic fin, the caudal fin is forked, and the caudal peduncle is covered with peduncle-like scales. Sturgeon are large and can live for more than 30 years.

The feeding habits of the white sturgeon are similar to those of the Chinese silver carp, which prey on zooplankton as bait and are filter-feeding fish. It mainly preys on zooplankton and cladhorns, especially daphnia, and occasionally ingests small aquatic insects such as midges larvae. A sturgeon with a body length of less than 12 cm can eat zooplankton one by one, and can also eat small fish and shrimp; It is over 12 centimeters long and has well-developed feeding organs, filter-feeding and is capable of catching zooplankton.

The gonads of duckbilly sturgeons mature late, usually after 8 years of age. Spawning in the United States is at its peak from April to June. When the male and female adults are above 16, the male and female adults swim along the river water** to the river bank, and most of the flocks spawn and reproduce under the shallow water and gravel of the barrage.

The eggs released when they reproduce under natural conditions are sticky eggs, mostly adhered to gravel or aquatic weeds, and hatch for about a week at a water temperature of about 16. The duckbill sturgeon has strong ornamental properties and can be used for high-grade ornamental fish farming. Adult fish meat is spiny and less, fine and fresh, and is a high-protein and low-fat meat.

Fish eggs are processed into caviar and are known as "black gold nuggets", so they have a high edible value. Its leather can be processed into high-grade leather. <>

They live in the water, and then they eat some plankton, and they will also eat some aquatic insects, and then some small fish and shrimp will also eat, this is their living habits.

It mainly lives away from crowds, feeds mainly on zooplankton, and also eats some small fish and shrimp, with a body length of more than 12 cm. The speed of swimming is very fast.

It generally lives in the water and prefers clean water, because this fish is very rare, so it is very precious.

The Chinese white sturgeon is also a species of duckbill sturgeon, but it is extinct.

This is actually a wild protected animal, which looks more like a sturgeon, but it takes a lot of time to cultivate it, and the number is relatively rare.

This is a very rare creature, this is a creature in the United States, which has been cultivated and reproduced, and is a relatively old fish.

It is a species of sturgeon, and this creature is also very ancient, and the mouth of this creature is very similar to a duck's beak, so it is called a duckbill sturgeon.

This is actually a fish creature, which is a bit like a catfish, and it is also a national first-class protected animal.

The scientific name of this animal is the sturgeon, which is not particularly common, and there are records and records of this animal.

The Chinese sturgeon is a very famous fish that lives in China. Some believe that this fish refers to the sturgeon. The Chinese sturgeon and the sturgeon are the same, but this view is not very accurate.

The Chinese sturgeon and the sturgeon are not the same species, and their range of activity is not identical. It's not exactly the same, but it's not entirely different, but it's closely related. Specifically, the Chinese sturgeon is a type of sturgeon that is included in the category of sturgeon and has the basic characteristics of a sturgeon, but in addition to that, it has some characteristics of its own.

Therefore, we can neither confuse the two, nor consider the two to be completely different.

The Chinese sturgeon has a long body, a narrow tail, a narrow back, and a straight belly. The head is in the shape of a triangular triangle. The nostrils are large, with two nostrils in front of the eyes.

The eyes are small, oval-shaped, and located at the back of the head. Wide eye distance. The mouth is low, laterally dehisced, prominent, retractable.

The lips are underdeveloped and have a small mastoid process. The pelvic fin is small, rectangular in shape, and is located at the lower back of the body**, near the anal fin.

Sturgeon is a rare ancient fish left over from the Mesozoic Era hundreds of millions of years ago, and it is a fish of the order Bony Fish and Sturgeon. The number is already very small.

The Chinese sturgeon is a typical anadromous fish. It usually lives on the coastal continental shelves of the East China Sea and the South China Sea, and grows and develops in the sea. However, the existing sturgeon are distributed in the northern hemisphere, and there are three main dense distribution areas.

There are many species of sturgeon, both in number and variety, mainly in Eastern Europe, where sturgeon production accounts for 80-90% of world production. Most sturgeon belong to the type between warm-water and cold-water fish, belong to the sub-cold-water fish, and prefer to inhabit cold and temperate water bodies with low salinity.

In terms of main distribution areas, there are about 20 species of sturgeon, many of which live in eastern Europe, and the Chinese sturgeon is the most widely distributed in China. In addition, in terms of rarity, the Chinese sturgeon is one of the most prized species of sturgeon because of its small number. It is a first-class protected animal in China.

The Chinese sturgeon is a species of sturgeon that mostly lives inshore. Sturgeon contains many species and is one of the oldest fishes.

First of all, there are many different types, and the colors are also different, the size of the volume is also different, and the living area and environment are also different.

The difference between the Chinese sturgeon and other sturgeons is that the Chinese sturgeon is a national first-class protected animal, and the Chinese sturgeon is only distributed in the Yangtze River basin, while the sturgeon is distributed in different sea areas. At the same time, the size of the ordinary sturgeon is smaller than that of the Chinese sturgeon, and the sturgeon's nose is like a cannonball, and the mouth does not exceed the width of the body.

Recently, several fishermen in the Qiantang River caught a strange fish while fishing, although the body of this fish is no different from other fish, its beak is like a duck's beak. After catching this strange fish, the fishermen at the scene decided to hand it over to the law enforcement officers, whether it was a protected animal or not, they did not dare to dispose of it at will. The fisherman called the Hangzhou Fishery Administration and Law Enforcement Brigade, saying that he had caught a platypus in the river, a bit like a sturgeon.

This strange animal is the duck-billed sturgeon, and you may not know much about the duck-billed sturgeon, so here is a detailed introduction to this animal. The duckbill sturgeon originated in the United States, and was introduced to China in 1990, and through artificial breeding and population breeding, the duckbill sturgeon began to be bred in more than 10 provinces.

The duckbill sturgeon is listed as the artificial breeding of aquatic wild animals under national key protection, which belongs to the management of national key aquatic wild animals. The duckbill sturgeon has a total body length of about 80 centimeters and weighs about kilograms, and the most obvious feature of this fish is the mouth of the duck's mouth, which is smooth and has no scales, and is a black sturgeon, which likes to eat small shrimp or small fish larvae.

After the fisherman contacted the Fishery Administration and Law Enforcement Brigade, it was confirmed by professionals that this strange fish was the duckbill sturgeon, which belongs to the key protected aquatic wild animals. The duckbill sturgeon is an exotic fish, which is basically artificially farmed, and the duckbill sturgeon that was found may have escaped from the farm before it was discovered by the fishermen, but fortunately, the fishermen contacted the local authorities in time.

Through everyone's efforts, the water quality and ecology of the Qiantang River have gradually recovered, and the crackdown on illegal fishing is also getting stronger and stronger. It is understood that many national key aquatic wild animals have been discovered this year, and more citizens are becoming more and more aware of ecological protection, and they have also participated in ecological protection activities, we should protect the rivers, lakes and oceans around us, and give aquatic life a stable home.

I have to say that the quality of fishermen in Hangzhou is really high, and they have a strong sense of ecological protection. Everyone is responsible for protecting the ecology, and we also call on everyone to contact the relevant departments immediately if they find unknown creatures.

It is a cartilaginous fish, the body is scaleless, and it is spoon-shaped, the mouth is in the state of a duck's beak, the appearance is relatively high, it is relatively good-looking, the mouth is relatively large, and the eyes are relatively small.

This animal has a beak that looks very similar to that of a duck, but its body is very similar to that of the Chinese sturgeon, so it can be said that it is a very strange animal.

The beak of this animal is elongated and flattened like that of a duck, and its body is not particularly large, with four fins on its abdomen that are the same as a duck's feet, and its belly is white and its back is grayish-black.

The body is very smooth, without scales, and the mouth is flattened, very much like a duck's beak, which is rare to see such creatures, which eat planktonic and the like.

Recently, Master Wang Linhai, a fisherman in Shangcheng District, Hangzhou, gave a ** to the Hangzhou Fishery Law Enforcement Brigade, saying that he caught a duckbill fish in the river, but it looked a bit like a sturgeon. After the debate of the Fisheries Law Enforcement Brigade, Master Wang mistakenly caught a platypus, a name that many people should not have heard, and everyone heard more of a platypus. So what kind of creature is a duckbill sturgeon?

1. Duckbill sturgeon.

The duckbill sturgeon, whose scientific name is the American spoon-billed sturgeon, was originally a large freshwater economic fish living in the United States, and like the Chinese sturgeon in China, it is a very rare fish. In appearance, the body surface has no scales, the mouth is like a duck's beak, and the food is mainly plankton, and it likes to live in freshwater areas. The lifespan of this fish is about 30 years or more, and the individual is relatively large, and there is a similarity with the rare animal platypus in our country, that is, in its mouth.

Second, the mode of reproduction.

The gonads of the duckbill sturgeon mature late, in April and June of each year, the eggs will be attached to the stones, the water temperature is about 16 degrees Celsius, and it takes a week to hatch the fish. Originally, this fish was only available in the United States, but this fish was later introduced in China. There are many things that duckbill sturgeon can eat, including some small aquatic insects, plankton small fish and shrimp, and small animals that can swim very fast.

3. Nutritional value.

Due to the tender meat and delicious taste, and the nutritional value is extremely high, the anti-cancer factors contained in its cartilage have a certain anti-cancer and immune-strengthening effect, because the medicinal value is also very high. It has the effect of prolonging life and strengthening the body. Because the duckbill sturgeon has a high ornamental value, it is also raised as a high-grade ornamental fish, and its meat is high in protein and low fat, so it is very popular with many fitness people, and its fish eggs are processed into caviar called black nuggets with high practical value.

At present, the international market has shown a state of short supply, and the price is as high as 10 hundreds of dollars per kilogram, and the domestic price is as high as about 100 yuan per kilogram.

A more irritable animal, it also looks very strange, and cannot coexist with people, because of the possibility of serious danger.

A duckbill sturgeon was found in the Qiantang River in Hangzhou, and the duckbill sturgeon is a large freshwater economic fish with a very rare species.

With the continuous improvement of the water quality of the Qiantang River, the crackdown on fishing-related illegal activities has become more and more intense, and all kinds of aquatic biological resources have been continuously restored. Master Wang Linhai called the Hangzhou Fishery Law Enforcement Brigade and said that he had caught a duckbill fish in the Qiantang River that looked a bit like a sturgeon. After identification, Master Wang mistakenly caught a duckbill sturgeon, whose scientific name is spoon sturgeon.

kissing stretched, paddle-shaped, flattened, wide in front and narrow in return; The eyes are small and round. The spoon is about 80 centimeters long and weighs kilograms. It feeds mainly on zooplankton and prefers to live in fresh water.

It originated in the United States and was introduced from the United States. After artificial incubation and fish farming, it was later promoted to more than 10 provinces and cities. Wild duckbill is a second-class protected animal in China.

It can now reproduce. It is not illegal to eat and ** farmed duckbills. The platypus is adaptable and is a relatively mild fish.

It usually feeds on plankton in the water** and breeds many platypus. As a result, platypuses mainly eat pellet bait.

When fishing for platypus, you can also buy some particularly practical platypus bait, and then add some sticky lure to the ruler to facilitate the lure to attach to the hook. It feeds mainly on zooplankton and cladopods, especially daphnia, and occasionally on small aquatic insects such as midges larvae. The spoonnose sturgeon, which is less than 12 centimeters long, can nibble on zooplankton, small fish and shrimp one by one; The fish is over 12 cm long and its feeding organs are well developed.

It catches fast-swimming copepods. Clamoperatops, especially daphnia, are the favorite food of white sturgeon, and midgel mosquito larvae and other small aquatic insects are also eaten occasionally.

Fish with a total length of less than 12 cm will devour zooplankton as well as small fish and shrimp one by one. After a total length of more than 12 cm, their feeding organs are well developed and turn into filter feeders. Bighead carp should not be placed in mixed ponds because Bighead carp and bighead carp have the same feeding habits.

Without increasing the amount of bait, the individual size of the sturgeon was more than 1 kg, and the economic benefits were considerable.