The close season for coarse fishing in the region's rivers and streams has begun today.
The close season prevents certain fish like barbel and chub being caught to give them a chance to breed.
Until the 15 June, when the season reopens, patrols will be carried out by the Environment agency.
Anyone who breaks the rules could be fined.
To help tackle illegal fishing, the Environment Agency urges anyone to report incidents by calling their hotline on 0800 80 70 60.