The warning has been issued for people and pets not to enter the water at Oxford's University Parks after a bright green algae bloom appeared on its surface. One local, Angela Mills Wade, said the algae was 'almost fluorescent' and recommended pet owners 'heed the warnings'. One local described the colour of the algae on the water as 'almost fluorescent' (Image: Angela Mills Wade)READ MORE: Road remains closed after 'scary' crash on Oxford bridgeShe said: "Many people see this and think it’s ugly. She shared images from University Parks in South Parks Road, whose waterways had a blanket of bright green algae making its surfaces appear solid. Algae bloom in University Parks (Image: Angela Mills Wade)A notice displayed in the park by the University of Oxford's parks department said: "Please be aware that there is currently an algal bloom in the river caused by the recent dry weather conditions.