Fish Deaths at Fleet Pond

by For Fleet's Sake


There was distressing news today as thousands of fish are reported to have died in Fleet Pond. It is believed that the unusually high temperatures in a week which saw 30ºC and above every day, contributed to the deaths, in conjunction with low oxygen levels.

Below: A sad day for Fleet pond with at least 10,000 fish deaths. Photo: Hampshire Live.

Environmental Health are on the scene and dealing with the situation along with Hart District Council, as the huge clean up operation gets underway. Measures are also being taken to improve conditions, including releasing canal water into the pond.

Below: Environmental Health attend the scene where a clean up operation takes place. Photos: Hampshire Live.

Hart District Council have asked that the public avoid the areas where the clean up operation is ongoing and keep their dogs away from the water, which has also suffered from algae problems.

Below: Fleet Pond Society shares the information from Hart District Council.

Below: The pond has also suffered from recent algae problems.

Sadly the problem doesn’t seem restricted to Fleet Pond as Yateley have also reported similar deaths locally.

Below: Post from Yateley Town Council.

If you see any dead fish in ponds or lakes, or if you see them struggling to breath on the surface, you are asked to call the Environment Agency on 0800 80 70 60.

At the time of writing this, stormy conditions and rain have just begin in the area, reducing temperatures. Unfortunately this was too late to save so many fish.


An update from Hart Countryside Services as temperatures have now fallen considerably from the previous week and are currently in the low 20’s with on and off rainfall.

The council stated “We do not have the exact cause confirmed. However, we have experienced a heatwave of 34C for six days which raised the temperature of the water to 30C.  This high temperature, compounded with the die-back of blue green algae and the shallowness of the lake, depleted the oxygen in the water to dangerous levels. Any one of these factors could have killed the fish but it may be a combination of them all.”

More information can be found on their Fleet Pond FAQ page.


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