DEPARTMENT FOR
ENVIRONMENT, FOOD AND RURAL AFFAIRS News Release (284/08) issued by
The Government News Network on 28 August 2008
Movements of fish
in and out of Weller Pool, Lynsters Lakes, Coppermill Lane, Maple
Cross, Rickmansworth, Hertfordshire have been restricted,
following the confirmation of Koi Herpesvirus (KHV) Disease.
Movements of fish in and out of the adjacent waters in the Colne
River Valley, Hertfordshire and Greater London Area have also been restricted.
Defra has issued a Designated Area Order prohibiting the movement
of fish to and from Lynsters Lakes and all waters that have
potential contact with the infected fishery in order to prevent
the spread of the disease.
KHV Disease affects common carp and carp varieties such as Koi.
It can result in high rates of fish mortalities.
There are no implications for human health.
It became a legal obligation to notify suspicion of KHV Disease
on 6th April 2007. The measures developed in partnership between
government and industry to help combat outbreaks were announced on
21st May 2007.
Suspicion of the presence of the disease should be immediately
reported to: the Centre for Environment, Fisheries and Aquaculture
Science (Cefas) in Weymouth
Tel: 01305-206673/206674
E-mail: fish.health.inspectorate@cefas.co.uk
Notes to Editors
1. The Diseases of Fish (Designated Areas) (England) (No. 6)
Order 2008, issued under the 1937 Diseases of Fish Act (as
amended), restricts the movement of any live fish, or live eggs of
fish, into or out of the designated area without the prior written
consent of Defra.
2. The designated area incorporates Lynsters Lakes and the
adjacent waters in the Colne River Valley, Hertfordshire and
Greater London Area and comprises the waters and the land in the
area bounded by a line drawn from the following Ordnance Survey
grid references: TQ02739215, straight to TQ04089213, then straight
to TQ05408899, then straight to TQ06028605, then straight to
TQ04728622 and returning to TQ02739215.
3. The designated area includes the following waters: Lynsters
Lakes (comprising Weller Pool, Lynsters New and Lynsters Old),
Pynesfield Lake, North Troy, Longlife Lake, Troy Lake, Harefield
Lake, Harefield Place North, Harefield Place South, Korda Lake,
Broadwater, Long Pond, Harefield Pit 1, Harefield Pit 2, Pit 3
(Denham Lake), Pit 4, Finger Lake, Gravel Pit, Wild Fowl Lake,
Savey Lake and Denham Water Ski Club Lake.
4. KHV disease may be suspected if dead or dying fish with other
clinical evidence such as bleeding from the gills, white patches
on the gills or skin, sunken eyes and hyperactive behaviour are
found in fisheries, other inland waters, fish farms, fish dealers,
retailers, aquaria and garden ponds. These signs usually appear
when water temperatures are between 15degrees C and 28degrees C.
5. Details of the statutory and voluntary controls in place to
help combat outbreaks of KHV Disease may be accessed from the
following web site : http://www.efishbusiness.co.uk;
Public enquiries 08459 335577;
Press notices are available on
our website
http://www.defra.gov.uk
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