What is the record cat fish?

The record Wels cat fish was caught by Frenchman Christophe Dubreuil (pictured right),  with the capture of a 246lb 14oz specimen from Spain’s River Ebro in 2009. However Wikipedia suggests that:
“The largest accurate weight was 144 kg (320 lb) for a 2.78 m (9 ft 1 in) long specimen from the Po Delta in Italy. Other reports of larger wels (around 5 m (16 ft) or more) are unlikely and are often regarded as typical big fish stories or in some cases misidentifications of the now rare sturgeon.”

Other research suggest that in the past there have been plenty of claims relating to the capture of bigger European cats, including a rumoured 674lb, 405cm fish from the Dniepr River in Russia, but hard evidence has been thin on the ground.

Here is a video with some of the largest cat fish in the world: