? Marine fish is a kind of fish. Most of them live in the ocean and can adapt to the high salinity environment. Mackerel is one of the many fish in our country, they are not marine fish, do not live in the ocean, but freshwater fish, live in freshwater. The number of mackerel in freshwater basins in China is relatively large, and it is not common in other countries. Mud fish live mainly in the south, because they like to live in places where the water temperature is relatively high, that is, in tropical and subtropical freshwater basins.
Wild dace are common in rivers, lakes, ponds and other freshwater basins, often staying at the bottom of the water. Especially in places where there are more stones and more water plants, the number of mackerel is more, because there is more food in such waters, and they can hide their bodies smoothly. In addition, there are many cultured mackerel in our country, because they are freshwater fish, they can not live in seawater, so the cultured mackerel also live in freshwater.
naturally? As mentioned above, there are not only many wild mackerel, but also many cultured mackerel in our country. Wild dace can reproduce naturally, but first they need to meet some conditions. Age is a key condition, and mackerel can only reproduce when they are sexually mature. They also need to breed at the right time, that is, when the water temperature is the most suitable, usually from May every year, when the water temperature and other conditions are more suitable.
The other is the farmed mackerel. They can also reproduce naturally, but they also have to meet some necessary conditions. When the mackerel is sexually mature, and the surrounding water temperature, water quality and other factors are more suitable, the mackerel can reproduce. However, in real life, some dace can not reproduce naturally because the pond is too small, or the efficiency of reproduction is relatively low. Therefore, if they are artificially bred, they can also take some artificial measures to help them reproduce, so that the success rate is higher.
