Phil Toler responded to our requests for pictures of Aylesbury with this photo. It was taken in August 2018 of Watermead village. In the foreground are the two lakes with the larger one on the right suffering a blue-green algae bloom which can be compared with the clear smaller lake on the left. Phil says that is the only time this has happened in the 26 years he has lived here.
Cyanobacteria or ‘blue-green algae’, a type of blooming algae, can produce toxins. These toxins can kill wild animals, livestock and pets. They can also harm people, producing rashes after skin contact and illnesses if swallowed.
Algal blooms block sunlight from reaching other plants in the water. They also use up oxygen in the water at night which can suffocate fish and other creatures. Oxygen is also used up when the bloom decays.