CATDOLL : CATDOLL: The per-acre yield of razor clams cultured in ponds is relatively high. What is the reason?

1. The per-acre yield of razor clams cultured in ponds is relatively high. What is the reason?

Fat hydroponic algae are important for short octopuses, which mainly feed on algae that filter waters. Ensuring the fertilizer degree of the waters can inhibit moss and mud and prevent eye mask. Maintaining a certain degree of fatness helps crickets open their eyes and spit water normally, ensures the normal supply of cricket nutrition, and prevents death. Ensure drinking water, increase growth rate, and increase production. Coastal ponds are large in area, and the amount of shellfish filtered with seawater salinity between 16-25 is large, making fertilizer difficult. The temperature is too low in spring, and the temperature is too low, the metabolism of birds is slow, and it is not easy to grow fat. The light intensity is insufficient in spring, and the light is insufficient on rainy days, which slows down the growth and reproduction of birds and makes it difficult for water to grow fat.

Heavy metals exceed the standard, drug residues are too large, algae and microorganisms cannot be killed, and the water is not fertile. The pond water and water source lack algae species. Generally, natural seawater contains a large number of algae species, and the bottom layer also contains a large number of diatoms, so algae species are generally not lacking. There are too many mosses in the water, which inhibits the reproduction and growth of beneficial birds. Algae are not easy to reproduce. There is no insecticide before fertilization, and the cultivated algae can easily make these plankton vegetarian. Insufficient fertilizer, wrong method, and long-term use of chemical fertilizers alone. Octopus mainly feeds on algae filtered from the water, and has relatively high requirements for water fertilizer. It is difficult to obtain an ideal state for this group of fish in a half-seawater pond culture, especially fertilizer diatoms.

These seedlings weigh about 40 tons and were transported overnight from the seedling base in Sanmen County, Zhejiang Province. Zhang Ning said that in order to prevent the seedlings from dying, they did not dare to hesitate. After opening several of these boxes, if no seedlings were found to be dead, they would be quickly moved to the ship. Before the tide completely recedes, the seedlings are transported to the breeding farm or pond, and then manually and evenly spread on the mudflats or ponds. If the seedlings are sprayed after the tide recedes, they will not survive at all and will have to wait until the next tide comes out, when they may die of lack of oxygen in the incubator. Dragonflies, also known as dragonflies, have a sunken ditch that slopes from the top of the shell to the center near Fuyan, and are named after this ditch. Fayou Town is a coastal town mainly engaged in aquaculture. Aquaculture is one of the important aquaculture products. There are about 20,000 acres of mudflats and ponds that can be aquacultured, with an annual income of 14 million catties.

It is the best time to invest in seedbeds. Affected by the COVID-19 epidemic, farmers cannot go out to buy seedbeds. It seems that it is March, and now the control is so strict that we can't go out. If we delay for a few more days, it will be difficult for the seedlings to survive. This may make us anxious. The inability of seedlings to come in means that by the end of the year, the livelihoods of thousands of people in the village will be settled, which makes farmers such as Chang Tao anxious.

This is because there are a lot of plankton in the pond, which provides a very good growth environment for clams, so the production of clams is very high.

First of all, the water resources in this place are relatively common and very conducive to the growth and reproduction of these seafoods, and there are also special people who cultivate them here.

The reason is that there are more microorganisms in the pond, and many clams love to eat them, so the yield will be higher.

2. What to do if the salinity of the seawater in the aquaculture pond is too high?

If the salinity is too high, you can use:

①Always introduce fresh water and discharge salty water at dawn: strictly separate the inlet and outlet of the pond, introduce fresh water and discharge salty water.

② Apply organic fertilizer to turn a "raw pond" into a "mature pond": Apply organic fertilizer to cover the bottom of the saline-alkali pond with a layer of pond mud as soon as possible. The humus in the pond mud is embedded in the gaps in the soil, which basically isolates the pond water from the saline-alkali soil.

③ Improve saline-alkali water quality and soil quality simultaneously: While improving saline-alkali water quality, plant alkali-discharging green manures such as Sesbania on the pond bank. Sesbania and other green manures are not only high-quality green manures for making pond mud, but also can loosen the soil, destroy the capillaries of the saline-alkali soil layer, and prevent the salt and alkali in the lower layer from overflowing with the capillaries.

④ High water level suppresses salt: To prevent groundwater from seeping into the pond, the water level in the pond should be kept higher than the water level of the external river during the breeding period; after the pond is dried and cleaned in winter, it should be filled with fresh water immediately to prevent a large amount of underground saline-alkali water from seeping in.

The method of introducing fresh water dilution...Fresh water entering the marine aquaculture pond will cause stratification.

If the salinity is too high, can't we just dilute it with water? We should often use the salinity meter produced by Hengbo Instruments to measure to prevent the death of clams.

Introduce fresh water for dilution.

3. Breeding and pond cleaning: what should be used to prevent clams from dying?

In early spring, when the water temperature in the crayfish pond rises to about 10℃, careful inspection will reveal that crayfish leave their caves in the evening and move around. At this time, the young shrimps that have overwintered also begin to eat. In order to ensure that crayfish can grow healthily and quickly, improve the survival rate of crayfish, and lay a solid foundation for increasing the production and efficiency of crayfish farming,

4. There are many small snails in the pond. How to deal with them better?

Animal-eating fish and crabs like saltwater sturgeon can eat it, but animals that can eat it can definitely eat razor clams, as the shells of razor clams are thinner than it.