2. Flood control: During the rainy season, attention should be paid to preventing flood inflow, or digging ditches around dikes to fight floods, or moving oysters to deep-water areas with high salinity for temporary cultivation.
3. Overwintering: Oysters cultured in Dalian Bay and near rivers in the north generally go through 2-3 winter ice ages. Check 1 time before freezing, and transplant oysters that may be threatened into deep water to make them overwinter safely.
4. Fattening: Before harvesting in1~ February, move the oysters to an excellent fattening farm for fattening, so as to increase production.
5. Prevent human beings from trampling: Oysters sown on the beach can only filter on the surface of the beach for food. Once trapped in the mud, they can't live normally and suffocate. It is forbidden to trample on the beach at will, and managers should March along the ditch when they get off the beach.
6. Dredge the channel: always check whether the drainage channel is unblocked, and try not to water on the beach after the low tide, so as to avoid the death of oysters caused by excessive water temperature, enemy lurking and deep mud floating.
7. Disinfection: Oysters have many enemies, which should be removed by turning stones. July-September is the peak breeding season for red snails and litchi snails, so it is necessary to dive to catch their parent shells and egg bags. In the season of frequent crab activities, strengthen management and catch enemies.
8. Windproof: The typhoon has caused great damage to the aquaculture facilities, and it will also roll up sediment to bury the fixer and oysters. Therefore, after the typhoon, it is necessary to rescue in time, repair the raft frame and support the fallen or buried anchor.