Over 1,000 fish have been saved after the prolonged hot spell saw water levels fall in the Lake District.
A team from the Environment Agency relocated the fish, including salmon, trout, eels and minnows to safer refuge after they got into distress in a tributary of the River Derwent in Borrowdale.
The agency said periods of warm, settled dry weather can also see a rise in the naturally occurring environmental phenomenon of blue green algae.
Officers have been responding to reports of blue green algae across the North West to collect samples and analyse them to confirm its presence and inform partners.
It is urging people to report any environmental incidents via the 24-hour hotline on 0800 80 70 60.
It said due to the recent dry weather, Environment Agency teams have seen an increase in reports to the hotline.
Jim Ratcliffe, Environment Agency environment manager, said: “Environment Agency teams have been working hard to respond to dry weather environmental impacts and we will continue to respond to reports of fish in distress, algal blooms and low water levels across the North West.
“We thank the public for alerting us to any incidents so we can investigate and take action and encourage everyone to use our hotline to help us protect the environment.”
The Met Office is predicting further dry weather with long sunny spells with an increasing chance of thunderstorms over the coming days.
