Aquaculture and Fisheries News => Aquaculture News => ข้อความที่เริ่มโดย: pramaiporn ที่ กรกฎาคม 23, 2010, 10:20:38 PM

หัวข้อ: French virus found in UK oyster stocks
เริ่มหัวข้อโดย: pramaiporn ที่ กรกฎาคม 23, 2010, 10:20:38 PM
The OsHV-1 virus has made it to UK oyster stocks. (Photo: Stock File/ FIS)

French virus found in UK oyster stocks

Friday, July 23, 2010, 23:30 (GMT + 9)

The movement of oysters from parts of the UK Kent coast has been banned after a form of herpes decimated shellfish stocks at a Whitstable farm.

Fish health inspectors visited Seasalter Shellfish in the town after the producer reported a high mortality rate in its Pacific oyster stocks.

They said samples tested positive for the OsHV-1 virus which has wiped out stocks in France in recent years.

A containment area has been declared in The Swale, Thames and north Kent coast.
Seasalter Shellfish managing director John Bayes said: "It is catastrophic in as much as we were right at the beginning of a new thrust to reinstate the Pacific oyster in a big way.

"We've invested a huge amount of money in it and were very hopeful that we would for the first time in perhaps a century have a continuing and plentiful supply of oysters but it's not meant to be," he added, BBC News reports.

A spokeswoman for the Centre for Environment, Fisheries and Aquaculture Science (CEFAS) said: "OsHV-1 is an emerging disease that has been associated with high levels of mortality in Pacific oysters in France, Jersey and some bays in the Republic of Ireland.

"There are no implications for human health.

"Any suspicion of the presence of OsHV-1 in Pacific oysters should be immediately reported."

In 2008 France's main marine research institute, French Research Institute for Exploitation of the Sea (Ifremer), set up a crisis team to find out why 40 to 100 per cent of oysters aged 12 to 18 months were dying in all but one of France's breeding areas.

The team established that a virus called OsHV-1 (Oyster Herpesvirus type 1) was killing young oysters, helped by unfavourable weather conditions that weakened the shellfish.

Related articles:

- Oyster industry hit by fresh crisis
- Herpes virus behind mysterious French oyster deaths
- Aid to address impact of mysterious oyster kills: minister

By Denise Recalde