How many cultured sea cucumbers in Liaoning died of "heatstroke" caused by high temperature?

The high temperature caused 68,000 tons of cultured sea cucumbers in Liaoning to "die of heat", resulting in a direct economic loss of 6.8 billion.

On August 6 th, in recent days, high temperatures have continued in many places in Liaoning, and the highest temperature in some areas even exceeds 40 degrees Celsius. ?

The rare high temperature has caused an unprecedented blow to the sea cucumber breeding industry. ?

The "devastating" blow of record-breaking high temperature to sea cucumber culture in Liaoning?

In Dalian, the main producing area of Liaoshen, a large number of sea cucumbers died. ?

Yu Chang, a sea cucumber farmer in Dalian, said: Sea cucumbers are afraid of high temperature and cold. At high temperature, it will turn into water bit by bit and be out of sight. ?

In previous years, the normal seawater temperature was 25 and 26 degrees. This year, the temperature continues to be high, reaching 36 to 37 degrees at two or three in the afternoon. The sea cucumber at 30 degrees is unbearable. ?

According to the introduction of the fishery department, due to the continuous high temperature, the sea cucumber cultured in many ponds in Liaoning Province began to suffer from hypoxia and peeling on July 23, and by July 28, the sea cucumber in the culture pond with a water depth of less than 7 meters died in a large area. ?

The salvaged sea cucumbers can't reach the quality listed, so they can only eat them themselves or send them to relatives and friends after processing. According to the lowest price of Liaoshen in the current market, the loss this year will exceed 10 million.

Wang Mingsheng, a Dalian sea cucumber farmer, said that this pond is being rescued, and all the sea cucumbers in other ponds are extinct now, and there is no one left. ?

Wang Mingli, president of Dalian wafangdian city Sea Cucumber Association, said that several farmers cried. At present, there should be about 500,000 mu of captive sea cucumbers in this sea area, with a loss of 90%.

Does not affect the loss of raising sea cucumbers in ponds and sowing sea cucumbers at the bottom?

At present, 90% of sea cucumber culture in Liaoning Province adopts the method of "sea cucumber pond culture". The losses caused by this high temperature attack mainly occurred on these sea cucumbers. However, on the other hand, farmers who use "bottom sowing sea cucumbers" have not been greatly affected. ?

Sun Gang, a sea cucumber farmer in Changhai County, Dalian, said that because it belongs to the open sea, the sea water is flowing every second. Due to the influence of external high temperature, it is measured every day, and the current temperature is fine. ?

The main ways of cultivating sea cucumbers in China are: sowing sea cucumbers at the bottom, raising sea cucumbers in ponds and raising sea cucumbers in greenhouses. ?

Pond cultured sea cucumbers and greenhouse cultured sea cucumbers have excellent growth conditions and fast growth speed, but the seawater fluidity is poor, so sea cucumbers are easily influenced by the outside world. ?

Bottom-sowing sea cucumber is a kind of semi-culture mode with natural growth. Although the survival rate and recapture rate are low, the viability of sea cucumber is very strong. ?

Therefore, this round of high temperature weather did not have any impact on the bottom-sown sea cucumber. ?

Leo Chou, a professor at Dalian Ocean University, reminded farmers to improve their insurance awareness. ?

Does the fishery department strengthen technical guidance when there is a disaster in cultivating sea cucumbers in cofferdams?

In order to save the remaining sea cucumbers, farmers are now trying to cool the pool water in various ways. Some people even put ice cubes in aquaculture ponds. However, experts say that this practice may reduce the salinity of seawater and affect the sea cucumbers that survive in the pond. ?

If ice cubes are thrown into aquaculture ponds, even sea ice belongs to fresh water, which may cause some unnecessary losses. The best measure now is to change the water actively when there is tide. ?

In order to prevent farmers from "going to the hospital in disorder", recently, the marine fishery departments in many places in Liaoning invited experts to go deep into the front line to guide farmers' production, and organized technicians to help farmers monitor the pond temperature and check the sea cucumber falling rocks. ?

Lin Yun, a technical engineer of Liaohekou Marine Fisheries Bureau in Panjin City, said that if oxygen tablets, oxygen-increasing tablets and fertilization measures were put in, the death rate of sea cucumber could be delayed. ?

Dead individuals and ponds should be treated in time, otherwise secondary pollution will affect other ponds. Because high temperature leads to the death of sea cucumber, secondary pollution may lead to the death of bacterial infection. ?

At present, sea cucumber associations in some areas are also actively running, hoping that relevant units will help farmers tide over the difficulties. ?

Source: Phoenix Network Information