They dont kill them, there wouldnt be no point after spending up to 3 hours+ bringing the beautys in.plus pointless and heartless!
There's a lake in barcelona, Ebro i think they have the biggest catfish in europe.looks like thats where it is.
i used to fish and had /have an awful amount of respect for them...espically cats..
..the fish are photographed and released.
it is illegal to do otherwise...also very very wrong..i cant stress enough how cruel i think it is to kil a fish for the sake of it...but these people that fish there are pros and would be just as horrified as you or me, im sure.
i know what everyone will say, im cruel for having fished, but i started as a child and grew out of it.