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Council staff have been working closely with the Environmental Health Agency and The Centre for Environment , Fisheries and Agriculture (CEFAS) following a number of fish deaths at Danson Lake this week.  Samples have been taken and results are expected within two to three weeks.    

It is highly likely that the Carp in the lake have a serious disease but the Council has been assured that the suspected virus is not harmful to humans, animals or other fish species.    

Watersport activities can continue safely at the lake and the Annual International Canoe Polo event at the lake this weekend (29/30 July) will go ahead as planned.  

However the following constraints have been put in place by CEFAS in order to prevent any potential transfer of the virus:

  • All fishing has been suspended pending the outcome further tests
  • Supervised disinfection of any water craft leaving Danson has been set up at the jetty for any water craft that leaves site to prevent the virus being transferred to Carp at other lakes.   

The Council would like to stress that this is not thought to be the same virus that killed a large number of fish in 2012 and that the water is safe for activities to continue.  

We would remind park users that for the safety of lake users, wildlife and family pets, dogs are not allowed in the lake. The Council always advises dog walkers to keep their pets on their leads close to the water particularly in the summer months when inland waters can also suffer from algae blooms which can prove fatal to dogs.    

Fish carcasses are being collected from the lake and taken for incineration.  Park users should avoid any dead fish carcasses and are asked to report any carcasses to the Watersports Centre at the boathouse by telephoning 0208 3003 2828.