Flood of raw sewage kills fish in Thames

44907557-73f8-4ce9-a8c5-975f204f32ce

Editor's Picks
Features Post
The brightest pupils
04 October 2021
Features Post
Dealing with egg ‘fungus’
04 October 2021
Features Post
Rathbun’s tetra in the wild
13 September 2021
Fishkeeping News Post
Report: 2021 BKKS National Koi Show results
13 September 2021
Features Post
The World's forgotten fishes
16 August 2021


Last night's torrential rains led to 600,000 tonnes of raw sewage flooding into the River Thames, says a report from The Telegraph.

The discharge which The Telegraph says is equivalent in weight to "13 Titanics" (that's 6.0 1014 Schindleria brevipinguis in fishkeeping terminology) had to be released directly into the Thames to prevent London from flooding in the unusually heavy rains.

In order to prevent further fish deaths, the Environment Agency is adding hydrogen peroxide, an oxidising agent which boosts redox potential and rapidly raises oxygen levels. However, the sewage is expected to move along the Thames in the current for several days before the problem subsides.

An EA spokesman told The Telegraph:"The sudden downpour meant that London's drainage network could not cope and was overloaded.

"The storm sewage has resulted in vital oxygen reserves being used up, causing the fishkill - currently visible between Kew, Brentford, and Isleworth."