Officials at the Environment Agency have blamed the recent heatwave for the deaths of thousands of freshwater fish, across the region.
The intense heat has caused oxygen levels in the water to plunge. There have been reports of fish in distress in Welney in Norfolk and Tiptree in Essex.
More top news
Strong winds are expected to move east across England and Wales during Wednesday.
An undergraduate degree course at the University of Bedfordshire is seeing strong demand.
Anglia Weather: Cloudy, breezy and mild today but staying mainly dry with top temperatures of 14 deg C (57 deg F).