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December 24, 2014


Daniel Gruenberg Reports on The Shrimp List


A not so pleasant Christmas greeting from Thailand:  Eastern Thailand is now being inundated by the whitespot virus (WSSV) on top of the ongoing onslaught from early morality syndrome (EMS) and a microsporidian infection.


A large farm in Eastern Thailand just stocked 100 ponds with new postlarvae, and 96 of the ponds were hit with EMS, while the remaining 4 were hit with WSSV.   This 100% failure on a large, well-run farm is a good indication that things are still very tough in Thailand.


This pattern is typical of what I’m seeing in Eastern Thailand.  I’m not sure what’s going on in the Southern Thailand, but temperatures are dropping there, which usually makes WSSV worse.


It looks like Thailand will produce 190,000 metric tons of farmed shrimp in 2014.  Earlier, I estimated it would be between 180,000 to 200,000 tons.  The Thailand Frozen Foods Association (TFFA) is saying that production of farmed shrimp in 2015 will be 250,000 to 300,000 tons.  I’m not sure what it’s basing its estimates on.  Personally, I think it’s very difficult to predict what production will be in 2015.


Recently, there has been a dip in shrimp prices in Thailand.  I think it’s due to the emergency harvest of small animals from ponds that have been hit with diseases.  Thai processors have a hard time selling shrimp that are less than ten grams.  Low prices, combined with the WSSV scare and low temperatures, lead me to think that 2015 will get off to a slow start.  Many people are working very hard to come up with solutions to the disease problems in Thailand.  Let’s hope they find something that works in 2015.


Source: The Shrimp List (a mailing list for shrimp farmers).  Subject: Tough Times for Thailand...WSSV, EMS and Microsporidians.  Daniel Gruenberg (  December 24, 2014.

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