As the temperature decreases, the water temperature of the sea cucumber pond gradually decreases, and the water temperature of the sea cucumber declines faster than the shallow sea water temperature, and the water temperature of the pond tends to be lower than that of the shallow sea. At the same time, there are many sea cucumber ponds where the water exchange conditions are not smooth, the reference pool terrain is uneven, and the water depth in the pond is uneven. Inconclusively, the inlet and outlet gates are higher than the bottom of the pool, and there is still a deep "deadwater" problem when water is exchanged. In addition, various types of algae grow in autumn, and the excrement of sea cucumbers accumulates. If the ice is not handled properly, it is easy to have problems. Therefore, the management before sealing the ice is very important.
In view of this situation, recently, the technical staff of the Kenli County Marine and Fishery Bureau have strengthened the technical guidance for the sea cucumber breeding ponds and guided the farmers to do a lot of measures to manage the pre-ice closure. One is to increase the amount of water in the pond before icing, replace the “old water†in the pond, increase the water temperature in the pond by increasing the water exchange, delay the arrival of the ice age, and increase the pond height before the ice closure. Water depth, it is best to reach 2 meters, to minimize the impact of ice seal on the sea cucumber, the third is to carefully patrol the pool, check the pond for serious water leakage, especially near the gate to prevent the water level after the ice down. The fourth is to clean large plants in the pond in time to prevent death after a low temperature and damage the water under ice in winter. The fifth is to strengthen the disinfection and prevention of diseases in the ponds. Every 10-15 days, a quick lime or 2-4 g/m3 sodium hypochlorite solution can be splashed with 20 kg per mu to fight pathogens, improve water quality, and ensure good wintering water quality.
In view of this situation, recently, the technical staff of the Kenli County Marine and Fishery Bureau have strengthened the technical guidance for the sea cucumber breeding ponds and guided the farmers to do a lot of measures to manage the pre-ice closure. One is to increase the amount of water in the pond before icing, replace the “old water†in the pond, increase the water temperature in the pond by increasing the water exchange, delay the arrival of the ice age, and increase the pond height before the ice closure. Water depth, it is best to reach 2 meters, to minimize the impact of ice seal on the sea cucumber, the third is to carefully patrol the pool, check the pond for serious water leakage, especially near the gate to prevent the water level after the ice down. The fourth is to clean large plants in the pond in time to prevent death after a low temperature and damage the water under ice in winter. The fifth is to strengthen the disinfection and prevention of diseases in the ponds. Every 10-15 days, a quick lime or 2-4 g/m3 sodium hypochlorite solution can be splashed with 20 kg per mu to fight pathogens, improve water quality, and ensure good wintering water quality.
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