Don't go thinking angling is a sport here, it very definitely isn't
This is one big thing I miss from the UK, it's so different here I just don't have the will to pursue it, for example ...
When caught, fish must be immediately killed.
How many you can catch is also controlled.
You can't use any form of net (keepnets) to hold them whilst you continue fishing.
Where you can fish is strictly controlled, it's not enough to have a permit / license, you will also be told exactly which spots you can use.
The rules are continually controlled and the fines for breaking them, such as putting fish back, can run into thousands of Euros.