
Hope the above address works for you. It comes from a pretty good magazine, and has an article (above) you might want to read.
I, for one, will never eat anything containing this fish again!
Now, for what it's worth, I don't see what I hoped to share here. Seems that Orange Roughy is a fish that lives for centuries. Unless we catch and do whatever the fishermen seem to want us to do with it. Sorry--anything this old must be here for a reason, and us eating it is not the kind of reason I think it was placed on this earth for. Never again, as I said.
As for the magazine article, I guess since my subscription lapsed, I am not able to recommend any of its articles to you. Guess you can do whatever you want with the magazine. I do hope you will join me in not eating anything containing this fish, though, no more "Orange Roughy" for me, hopefully no more for Thee, either!