188体育

颁辞苍迟别苍迟蝉听

1. How to spot Perkinsus marinus
2. How Perkinsus marinus is spread
3. Preventing and controlling Perkinsus marinus
4. Further information on Perkinsus marinus
5. Legislation relating to Perkinsus marinus
6. Who to contact if you suspect Perkinsus marinus

Perkinsus marinus is a protozoan parasite infecting Pacific oysters (Magallana [Syn. Crassostrea] gigas) and Eastern oysters (Crassostrea virginica). All life stages are affected.听

Information on susceptible and vector species can be found here: Susceptible and vector species - 188体育 (www.gov.uk)

Great Britain is free from Perkinsus marinus, and it is a听 鈥�listed鈥� (also referred to as 鈥榥otifiable鈥�) disease which you are legally obligated to report immediately to the Fish Health Inspectorate - 188体育 (www.gov.uk).

There has never been a recorded outbreak of Perkinsus marinus in the UK.听

It does not affect humans.听

How to spot Perkinsus marinus听

Signs of the disease can include:听

• Increase of dead and empty shells听
• Gaping shells which don鈥檛 close when touched or when exposed to air听
• Thin, watery body听听

How Perkinsus marinus is spread听

Perkinsus marinus is spread through movements of and contact with infected shellfish and contact with contaminated equipment or water. Transmission is direct between infected animals; parasite life stages are released into the water from the excreted waste of infected animals or when they die and taken up through filter feeding mechanisms.听

Preventing and controlling Perkinsus marinus听听

There is no treatment for Perkinsus marinus.听

Prevention is the best approach to disease control. You can protect your shellfish by being aware of the signs of Perkinsus marinus and other serious diseases and checking stock health regularly. Implement good husbandry and biosecurity practises.听

Further information on biosecurity measures plans, guidance and templates can be found here: Biosecurity Measure Plans - Information and Templates - 188体育 (www.gov.uk)听

You must be sure any shellfish introduced are Perkinsus marinus free. Do not buy shellfish of unknown origin. Follow the rules on moving aquatic animals: Aquatic animal health and movements guides - 188体育 (www.gov.uk)听

You must report it to the FHI immediately if you notice or become aware of shellfish showing any of the signs of Perkinsus marinus, particularly increased mortality and gaping shells. The FHI will investigate and if required apply disease control measures.听听听

Further information on Perkinsus marinus听

听

Legislation relating to Perkinsus marinus听

2009听听

The listed diseases are in and .听

Who to contact if you suspect Perkinsus marinus听听

If you suspect or know of a listed disease of fish and shellfish in England and Wales, you must report it immediately to the Fish Health Inspectorate (FHI), Cefas. You must also tell the FHI immediately if you know or suspect that increased mortality has occurred.听听

Under the Aquatic Animal Health (England and Wales) Regulations 2009 it is a legal obligation to report suspicion of Perkinsus marinus in any farmed or wild shellfish to the FHI. It is an offence under the Regulations to fail to inform the FHI of suspicion of Perkinsus marinus.听

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