How deep is the water suitable for fish farming? Pond is the habitat and growth environment of cultured fish, which directly affects the physiological activities and growth of fish and indirectly affects the reproduction of natural food organisms, both of which will affect the fish yield in the pond. Let's share the appropriate depth of fish farming.

How deep is the fish culture? 1 The depth and area of your pond should be appropriate. Very easy to understand. If your pond is only 0 or 8 meters deep, fish will run out of the pond when the water needs to be raised above 1 meter. Fish ponds are generally 2, 0-2 and 5 meters deep. Too shallow fish ponds can't raise water, and too deep fish ponds have high excavation cost, which is not conducive to fishing and transportation, and is also not conducive to the personal safety of farmers. In addition, the area of the pond should be about 3-6 mu, too small is not conducive to fish activities, and the water temperature changes greatly; Too big to be affected by the wind.

Raise and lower the water level of the pond according to the season to adjust the water temperature. As soon as the temperature warms up in spring, the water level will drop to 0,7-1,2 meters, and the water in the pond will receive sunlight and increase, which is beneficial to the activity of fish and the recovery of appetite after wintering. In areas with high temperature in summer, the water level should be raised to 1, 8-2, 2 meters. After the water becomes deeper, the temperature exchange between the upper and lower layers of the pool water will slow down, and the water temperature at the bottom of the pool will be maintained in a suitable and stable range.

Similarly, when the water level rises to 2, 0-2 and 2 meters in winter, the low-temperature water on the surface of the pond slowly exchanges to the bottom, giving the fish a stable water temperature condition. In autumn, the temperature is cool, and the water depth is kept at about 1 and 5 meters.

You need to keep the water level stable. That is to say, if the water level is lowered to 1 2 m in spring, the water level should also be maintained when changing water to avoid the situation of high and low, which is not conducive to the stability of water temperature and is easy to cause stress reaction of fish.

Of course, the environmental conditions in different places are different, so you need to make adjustments according to your local regional environment. Technology and experience are a process of continuous accumulation and change, and our industry will continue to progress and grow.

How deep is the fish culture? 2 A good edible fish pond should meet the following conditions:

1, water source and water quality

Water is the first condition for fish farming. Adequate water source, good water quality, high dissolved oxygen content and no toxic substances exceeding the standard.

The water source that meets the national fishery water standard is convenient for water injection and drainage in the pond, which is beneficial to intensive culture and improves the fish carrying capacity and fish output of the water body.

2. Area

The requirements of area size should meet the needs of fish ecology and growth. The fishing proverb says: "The water is wide enough to raise big fish", which fully embodies the importance of pond area.

Large area, large windward surface, easy to make waves on the water surface, promote the oxygen in the air to dissolve into the water, increase the dissolved oxygen in the water, and promote the convection of the pool water up and down.

Accelerating the mixing of upper and lower water and increasing dissolved oxygen in lower water are very beneficial to improve water quality and promote material circulation.

Production practice shows that the pond area is 6670 square meters. If the pond is too large, it is easy to cause uneven feeding of fish when feeding feed, and the water quality is not easy to control.

There are some difficulties in daily management and catching adult fish, and the fish products are too concentrated, which affects the balanced listing of fresh fish.

3. Water depth

The fishing proverb says that "one inch of water equals one inch of fish", which reflects the relationship between water depth and fish growth and fish yield. Having the necessary water depth is an important condition for high yield in ponds.

According to the statistics of No.1 Fishery Team 1959 ~ 14 pond in Helie Township, Wuxi City, the net yield per unit area increases with the increase of water depth.

Pond water depth 1, 7 ~ 2m, and the yield per 667m2 is higher than the water depth 1, 2~ 1, and the yield of 5m pond is increased100kg; When the water depth is 2~2 and 5 meters, the output will increase by 150 kg per 667 square meters.

However, the photosynthesis in the middle and lower layers of the deep pond is weak, the mixing between the upper and lower layers is difficult, and the dissolved oxygen in the lower layer is insufficient, which hinders the material circulation, reduces the productivity of the pond, and increases the earthwork investment in the newly dug pond.

So it's not good to have a deep pool. The depth of the pool water is generally 2, 5~3 meters. When the pond area is small, the water can be slightly shallower.

4. Pool shape and pool slope

The shape of the pool should be rectangular, and the length-width ratio is 2: 1 or 5: 3, which is convenient for the standardization of feeding, fishing operation and fishing nets, and can save labor.

The direction of the pool can be determined according to the terrain and local wind direction. Because the southwest wind blows more in summer and the northwest wind blows more in winter, the north-south direction is generally better.

It can greatly reduce the area of the pool shore affected by wind and waves, and increase the area of the pool water affected by wind, which is also beneficial to the oxygen enrichment of the pool water. The bottom of the pool should be flat and slightly inclined to the drainage direction, with a height difference of 10 ~ 20cm.

The width of the pond bank is 4~6 meters, and the width of the central bank is 8 meters. Areas with more land can be appropriately relaxed. A certain area can be reserved on the ridge for planting green fodder.

The slope of the pond should be1:2,5 or 1:3. Sandy soil or sandy loam is relatively loose, so the slope can be appropriately increased to reduce the possibility of pond embankment collapse.

How deep is the water for raising fish? 3 How deep should the pond be sealed? What is the most suitable depth for pond culture?

A colleague of mine just attended an aquaculture technical training a few days ago. He said that the teacher said in class that according to experience, the water body with the water depth of 2.5 meters to 3 meters in pond culture has the greatest utilization rate, and the water depth with the best utilization rate is 2.8 meters, which is also the most suitable for fish farming. Minimum water depth required for fish culture1.5m. Therefore, it is suggested that the water depth should be controlled between 2.5m and 3m, and the minimum depth should not be less than1.5m. ..

Is it meaningful to raise big fish in deep water? Is it better to raise fish in deep water or shallow water?

People often say that "raising big fish in deep water" is reasonable, but it can't be too deep. If the water is too deep, there will be no oxygen in the bottom water, and the bottom fish will not grow and breed normally. Generally speaking, the depth of pond culture should not exceed 3m.

Relatively speaking, the water depth is kept between 2.5 meters and 3 meters, the water environment is relatively stable, it is not easy to be destroyed, and fish can grow normally. Especially in Xia Dong, the weather is hot and cold, which helps to keep the water depth, and it is warm in winter and cool in summer.

Shallow water doesn't mean fish can't be raised. In the process of aquaculture, according to the experience of aquaculture, it is beneficial to lower the water level appropriately in spring and autumn. So as long as the water level can meet the normal growth of fish, according to the teacher, keeping it at 1.5 meters can raise fish.

Artificial fish farming is also a technical activity, which is influenced by other factors besides mastering the water depth. At the same time, the water depth should be adjusted according to the actual situation of fish growth in each stage and weather changes.