Nigel mate i hate to tell you this but a 4 foot catfish weighs about 40lb .... a 150lb catfish would more likely be around 7feet in length. Look on my website there's a 152 right at the top of the page. I think the story might be a bit of a "fishermans tale" as most of it sounds complete rubbish. If the fish was still hooked and it was 150lb i reckon the bloke would have never been seen again .... still clinging to his rod  :D i like the story, got quite a bit of comedy value to it.

If you find anymore of these be sure to post them !
all the best,
Dan.