date:Aug 14, 2012
On 1 August 2012 Fish Health Inspectors from the Centre for Environment, Fisheries and Aquaculture Science (Cefas) examined stock from a shellfish farm in the River Blackwater Estuary, Essex following reports of high levels of mortality in Pacific (rock) oysters Crassostrea gigas.Samples taken from the affected site were confirmed as positive for oyster herpesvirus (OsHV-1 var), and a Containment Area has been declared in the River Blackwater Estuary, Essex and the River Colne Estuary, Essex.
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