The photograph is a real one, and the fish pictured may actually weigh close to 140 pounds , but the picture wasn't taken at Lake Texoma (and the fish shown isn't a blue catfish). It's a photograph taken out of context from a French web site devoted to catfish angling and circulated with a fictional explanation, created a mixed bag of "real photo, inaccurate description."
I couldn't find the picture on the website. Do you happen to know what page it is on?