I cannot see the mouth clearly. I doubt its a barbel as I cannot see any barbules. The tail does not appear forked enough.
According to the web its a cyprinid which means somewhere along the line its related to barbel and has probably evolved along similar lines.
On a side note, I really dislike the use of lip grippers and don't get why it's so common over the other side of the pond.[/QUOTE]
Totally agree mate,I might understand it with a tiger fish,pirhana,barracuda etc,but I believe a sucker has no sharp teeth to endanger the angler so it seems unnecessary,it may be a fashion accessory in the states.