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April 14, 2016


Salt Water Intrusion Cuts Production


High salinity in the Mekong Delta is causing many shrimp farmers to cut their production by half until the rainy season arrives.


“We have warned farmers—except those who have stored low-saline water—not to stock a new shrimp crop until the beginning of the rainy season,” said Pham Hoang Son, head of the Bac Lieu Province’s Aquaculture Sub-department.


In most Mekong Delta provinces, shrimp farmers have reduced the number of ponds stocked by 50 percent because of high salinity, according to the Ministry of Agriculture and Rural Development’s (MARD) Aquaculture Department.


In Soc Trang, Ca Mau, Bac Lieu and Kien Giang provinces, salinity has exceeded 30 parts per thousand, a point at which shrimp are easily affected by disease.


Le Van Su, director of the Ca Mau Province Department of Agriculture and Rural Development, said the hot, dry weather had affected intensive, semi-intensive and extensive farms.


In March 2016, many shrimp farmers in Soc Trang Province’s Tran De District had good harvests because they had access to low saline water that they stored in reservoirs.


In areas with high salinity, farmers have the option of rotating fish with shrimp.  For example, in Soc Trang Province’s high salinity areas, some farmers grow yellow pomfret (a fish) in the dry season and shrimp in the rainy season.


Vietnam exports about $3 billion worth of shrimp a year.


Source: The FishSite.  Saline Intrusion Forces Farmers to Halve Shrimp Production.  April 13, 2016.

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