At this time, some people may think, why don't farm owners add ice or cold water to it? Putting cold water in the culture pond is a common cooling method, but it is not suitable for Meretrix meretrix. Not to mention a cold and a hot neutralization, it is possible to kill clams, and a small amount of cold water does not work at all in a large area of high temperature.
1, heat wave in North America Generally speaking, it is not particularly hot in summer in North America, and there is almost no such equipment as air conditioning. However, in the summer of 20021year, North America ushered in a heat wave, and the temperature in some areas was as high as 12 1 Fahrenheit, which was close to 50 degrees Celsius. Normal body temperature is around 36-37. Once the temperature exceeds this value, the body will feel sick.
In parts of Canada, Washington State and Oregon, it is reported that the death rate of people has increased due to high temperature. Many elderly people and special patients can't stand the high temperature and have no air conditioning, which may lead to illness. People are inevitable, and so are the animals of breeding companies.
2. The clams are cooked. There are aquatic products companies in the United States, and the pictures of the company's aquatic products losses are exposed on social platforms. Thus, the clams' shells have all been opened, and the meat inside has turned milky white and light yellow. People who don't know, thought it was a cooked clam. In addition to aquaculture ponds, marine life has also been affected.
Heat waves and dry tides in the sea have caused many clams to be cooked, and clam shells without meat can often be seen at the seaside. The local people think that the clam meat inside should be eaten by creatures such as mini crabs.
3. Why not add cold water and ice? For farms, the best way to cool down in summer is ventilation. But at high temperature, ventilation doesn't work at all, so it can only be solved by putting cold water and ice cubes. But it must be understood that the aquaculture pond is not an ordinary water tank, and there is a lot of warm water in it, so it is difficult to cool it with cold water and ice cubes.
The local high temperature caused by the heat wave will last for many days, and it is also a lot of work to change the water in the aquaculture pond every day. In addition, changing water every day may affect the survival of aquatic products, such as crayfish, which are very sensitive to temperature. Sudden changes in temperature will make them uncomfortable and may lead to direct death.