Bagda shrimps are dying in different areas of Koira upazila in the coastal region. Farmers are talking about virus infection as the reason.
However, the upazila fisheries officer said that they could not find any disease in the dead shrimp. Such distress due to rising temperature in extreme heat. He says, there is lack of sufficient water for shrimp farming in the fishing grounds. Moreover, the salinity of the water has increased due to climate change. As a result the shrimp are dying.
Harendranath Sarkar, a shrimp farmer UP member of Koira Sadar Union, said that he has been besieging since 2003. This time Bagda has cultivated shrimp on 15 bigha land. But since the beginning of the year, the shrimp hatchery has been plagued. Because the fish are dying due to the rise of the water in such a terrible heat. Most of the chicks die within 15 to 20 days after hatching. There is enough water around it. Moreover, they provide adequate food starting from regular care. However, due to the sun, there is no calculation.
Yogesh Mondal of North Vedkashi Union said, he has cultivated shrimp in 10 bigha of land this time. Bagda fish released earlier in the year died around 10th April. He has lost more than two lakh rupees. He said that there is not enough water in the premises of his area. Again the water is turning red due to heavy rain.
Most of the shrimp farmers of Koira said that in most areas of the upazila, more or less Bagda shrimp are dying in summer. Shrimp that are dying abnormally are discolored and relatively soft when placed in ice. So they cannot be sold.
According to Upazila Fisheries Office sources, there are about 4,000 small and big fishing enclosures in Koira. Its area is about 5 thousand hectares. This year almost all the bagda shrimp fish are dying. The production target for shrimp last year was six thousand metric tons; But the target was not achieved as the shrimp died.
Koira Upazila (Additional Charge) Fisheries Officer Saikat Mallik told Jugantar that the suitable temperature for Bagda cultivation is 25 to 30 degrees Celsius. And the salt tolerance level is a maximum of 25 parts per thousand (ppt). But due to climate change the temperature of the environment has increased a lot. Besides, the enclosures do not have the required amount of water for shrimp farming. Because of this salinity is increasing and due to the heat, Bagda Prawns are dying. Moreover, if it rains suddenly, the temperature drops. Even this sudden change in temperature is causing damage to the shrimp. To solve these problems, the farmers are regularly advised through Koira Upazila Fisheries Department.
END/V7N/SDK/DK/
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