There is a long history in the culture of the beach clams in the country. The clams in the natural beach culture are more colorful than those in the pond culture, but they are not as good as the pond culture. In addition, the frequent occurrence of red tides in coastal areas in China has often caused a large area of ​​deaths of the clams, which has directly affected the development of beach clam farming. 1. Selection of aquaculture sites Culture of natural beach culture should be selected in the small area of ​​the sea (a large number of cultural wastes caused by the tidal current assembly), a large area of ​​beach contiguous, fine grains of sand, and seawater salinity of 5% to 30%. Between the beach. 2. When the stocked beach is selected, a fence is inserted at the periphery of a suitable beach to prevent the migration of the clams and invasion by the enemy. The block should be about 1.5 meters above the sand and 0.5 meters above the sand. In the area where the trend of the sea area is slightly larger, it is better to arrange two levels of fences. Wenzhou seedlings should be given 200-250 kilograms of wolfberry seedlings with a specification of 120-200 seeds per 500 gram per acre. The amount of specific rations should be reasonably adjusted according to the size of seedlings. The unreasonable stocking density of seedlings will directly affect the growth of clams. The increase in clam weight is not only affected by the growth time and stocking density, but also by the combined effect of these two factors. Therefore, the stocking density should be adjusted with the growth time. Another thing to note is that the clams that break and die at the time of seedlings must be removed in a timely manner. If the clams that are not able to dive in time should not be killed, they should be removed to avoid affecting healthy seedlings. 3. Cultivation management 1 Periodic sampling and measurement Every ten days, the growth and measurement are observed. In particular, the trend caused by the typhoon will cause excessive local density, and should be evacuated in time. In addition, we must pay close attention to the changes in the sea environment, especially when encountering the effects of human disasters such as red tides that cannot be resisted. If a large number of deaths are discovered, they should be promptly removed. If the environment of the sea area continues to deteriorate, it is necessary to arrest them in time to reduce losses. Wen Hao. 2 The removal of enemy pests must be done every day to check the seine nets. If dumping or damage is found, it must be promptly repaired. Carefully check whether there is any invading enemy such as river crabs in the net. Once discovered, remove them in time.
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