CATDOLL : CATDOLL: Is dace a marine fish or a freshwater fish? Can it be farmed?

1. Is dace a marine fish or a freshwater fish? Can it be farmed?

Dace is a freshwater fish, not a marine fish. They live in freshwater, not in seawater, and cannot adapt to life in seawater. Dace itself has very high requirements for water temperature and mainly lives in tropical and subtropical areas. Therefore, they are mainly distributed in the south of my country, such as the Pearl River, Minjiang River and other waters. Dace often inhabits the bottom and middle layers of the Lancang River in the freshwater basin, especially during the winter. In addition, they also live in freshwater basins rich in organisms. 1. Is dace a marine fish or a freshwater fish? Dace is one of the fish living in my country. There are many varieties of fish, including marine fish and freshwater fish, and their living environment and body structure have relatively large differences. Dace is a freshwater fish and lives in freshwater. They are not marine fish and cannot adapt to life in seawater. The main place of origin of dace is my country, and it can be found in many waters in my country. However, this fish has very high requirements for water temperature, so it is more widely distributed in tropical and subtropical waters. For example, they are widely distributed in the Lancang River, Pearl River, Minjiang River and other waters in my country.

Dace often inhabits the bottom and middle of freshwater areas, and rarely goes to the upper layer. Especially in winter, the temperature is lower than usual, and dace have poor cold tolerance, so they will stay at the bottom of the water in winter and basically do not move. In addition, dace also has requirements for food. They will use phytoplankton and animals in the surrounding environment as their food, so they like to live in freshwater basins rich in organisms. For example, there are more dace in places with abundant aquatic plants.

2. Can dace be farmed? Dace is a unique fish species in my country and can also be farmed artificially. In fact, it is quite common to farm them artificially. As mentioned above, dace is a freshwater fish, so they also need to live in freshwater under artificial farming conditions. Since they have relatively high requirements for water temperature, not only wild dace mainly live in the south, but also farmed dace mostly live in the south. Moreover, since they are not very cold-resistant, some cold-proof measures need to be taken in winter.

2. Is dace a marine fish? Can it reproduce naturally?

Dace is not a marine fish, but a freshwater fish. They live in freshwater and cannot adapt to the very high salinity environment in seawater. Specifically, dace mainly lives in the waters of southern my country, because they like to live in places with relatively high water temperatures, and are most common in tropical and subtropical freshwater basins. They often stay at the bottom of the water. The same is true for artificially cultivated dace, because they cannot adapt to life in seawater, so they need to be cultivated in freshwater. 1. Is dace a marine fish? Marine fish is a kind of fish. Most of them live in the ocean and can adapt to the high salinity environment. Dace is one of the many fish in my country. They are not marine fish and do not live in the ocean, but freshwater fish, living in freshwater. There are more dace in my country's freshwater basins, but they are not common in other countries. Dace mainly lives in the south, because they like to live in places with relatively high water temperatures, that is, in tropical and subtropical freshwater basins.

Wild dace are common in rivers, lakes, ponds and other freshwater basins, and often stay at the bottom of the water. Especially in places with more stones and more abundant aquatic plants, there are more dace, because there is more food in such waters, and they can also successfully hide their bodies. In addition, there are many artificially cultivated dace in my country. Since they are freshwater fish and cannot live in seawater, dace under artificial cultivation conditions also live in freshwater.

2. Can dace reproduce naturally? As mentioned above, there are not only many wild dace living in my country, but also many artificially cultivated dace. Wild dace can reproduce naturally, but first of all, some conditions must be met. Age is a key condition. Dace can only reproduce after they are sexually mature. They also need to reproduce at the right time, that is, when the water temperature is most suitable, generally starting from May every year, when the water temperature and other conditions are more suitable.

Another is the artificially bred dace. They can also reproduce naturally, but they also have to meet some necessary conditions. When the dace are sexually mature and the surrounding water temperature, water quality and other factors are suitable, the dace can reproduce. However, in real life, some dace cannot reproduce naturally because the pond is too small, or the reproduction efficiency is relatively low. Therefore, if they are artificially bred, some artificial measures can also be taken to help them reproduce, so that the success rate is higher.

3. What is the difference between scale fish and dace?

Main differences:

First, they grow in different waters: scale fish live in the ocean, while dace fish live in rivers;

The second difference is size: adult scale fish are large, while dace are small.

The main production area of ​​​​mud carp is in China. It is more common in areas with higher water temperatures such as the Pearl River Delta and Hainan. The breeding cost is low and the yield is large. Mud carp is rich in protein, vitamin A, calcium, magnesium, selenium, etc.

[3] Mud carp is an important economic fish species in southern China and one of the species cultured in ponds. This species has the characteristics of omnivorous diet, high yield, wide feed source, tender meat and delicious taste, and is deeply loved by consumers.

4. Are crocodiles fish?

Crocodiles are vertebrate amphibians and reptiles. They are usually ferocious and violent. They like to eat small animals such as fish and frogs, and even kill humans and livestock. According to records, there are more than 20 species of crocodiles in the world. my country's Yangtze alligator, Thailand's saltwater crocodile and Lolo crocodile are all famous species. The largest crocodile breeding base in my country is the Guangzhou Panyu Breeding Farm, which covers an area of ​​nearly 70 hectares and has nearly 100,000 crocodiles, including saltwater crocodiles, Lolo crocodiles, Yangtze alligators, South American alligators, etc.

Crocodile is a species of Crocodile family in the order Crocodilianiformes. Also known as saltwater crocodile or sea crocodile. Distributed along the coast of Southeast Asia to northern Australia. With a total length of 6 to 7 meters and a maximum length of 10 meters, it is the largest reptile in existence. Saltwater crocodiles live in bays or cross the sea. They nest in the shaded hills by the Tamsui River (more than 60,000 meters from the sea). They use their tails to sweep out a 7 to 8 meter platform, on which a 3 meter diameter nest for crocodile eggs is built. The nest is about 4 meters away from the river and is shaded by leaves. Each nest contains about 50 white hard-shell eggs, about 80×55 mm in size. The mother crocodile waits by the side of the nest, shaking her tail from time to time to wet the nest, maintaining a temperature of 30 to 33 degrees Celsius, and hatching in 75 to 90 days; the young crocodiles are 240 mm long when they hatch, and can grow to 480 mm in one year, 1156 mm in three years, and weigh 5.2 kg.