When the fisherman proudly presented a 13 lb 13 oz monster at the weigh-in, he thought he had easily netted the £800 top prize.
But keen-eyed rival fisherman Shane Bentley quickly recognised the fish as a resident of the Guernsey Aquarium.
And when he called round to check, the aquarium bosses found that one of their tanks was indeed short of a bass.
• See today’s JEP for the full story
