September 5, 2024 - Koi herpesvirus (KHV) is a serious viral disease of fish and is a listed disease in the United Kingdom. It affects all varieties of common and ornamental carp species and can result in large scale mortalities. Fish with HV disease may show the following signs, especially when water temperatures are between 16-28°C.
- Necrotic (white or brown) patches on the gills
- Rough patches on the skin and sloughing mucous
- sunken eyes
You must contact the Fish Health Inspectorate (FHI) if you suspect an outbreak of KHV. This includes fish with the above signs, or death of carp or carp hybrids.
There is no risk to public health.
Sites with KHV disease must undergo a formal monitoring programme immediately following the outbreak. The FHI visit these sites to look for evidence of disease and to inspect compliance with the conditions of the statutory controls in place.
Confirmed designation
If a notifiable disease is confirmed, FHI places controls to limit the spread of the disease (these are known as confirmed designations). The following conditions are applied under disease controls:
- No person may, without the previous consent in writing of the FHI, move any aquatic animal including eggs, and gametes, into, our of or within a confirmed designation area.
- Disposal of dead aquatic animals, including eggs and gametes, must be by an approved method for disposal of Category 2 animal-by-product waste in compliance with local Environmental Health department requirements.
- Notify the Fish Health Inspectorate immediately should mortalities re-occur or spread to other waters/facilities within the designated area.
- Notify the FHI in advance of all intended physical changes to sites within the designated area - such as boundaries, number or size of waters, use of the site. FHI written permission will be required beforehand for all such changes.
- All requests for consents required under this Confirmed Designation Notice must be submitted to the FHI with a minimum of five working days' notice.
New outbreaks
When laboratory testing confirms KHV disease at a site, the FHI place statutory controls to limit the spread of the disease. These controls restrict movement of aquatic animals.
Disease controls have been applied at:
- JCB Lakes, Rochester, Staffordshire - July 4, 2024
- Kiveton Waters, Sheffield, South Yorkshire - July 19, 2024
- Gedges Lakes, Tonbridge, Kent - August 7, 2024
- West Stow Country Park Lake, Bury St Edmunds, Suffolk - August 15, 2024
- Bovington Lakes, Chelmsford, Essex - August 16, 2024
- Friezeland Pools, Nuneaton, Leicestershire - August 22, 2024
- Woolpack Fishery, Huntingdon, Cambridgeshire - August 22, 2024
- Ecclesfield Fishing Pond, Sheffield, South Yorkshire - August 22, 2024
- Westwoodside Lakes, Doncaster, South Yorkshire - August 22, 2024
- Tricklebrook Fishery, Tonbridge, Kent - September 4, 2024
For more information, visit HERE.
The Aquaculturists
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