I've heard the term "seafood" used to refer only to shellfish and the like, and not to fishfish. I have also heard it used pretty broadly to include all fish, including those which have never been near an ocean. I think you can find precedent for whatever you want to argue

[Inkspot] Surely the freshwaterness of salmon depends on where it has been caught? It is a fish that lives in both sea and reiver at different times in its life.

Then again, do they fish for salmon in the sea?

[CdM] This has a disturbing parallel in the number of piscivores and chicken eaters that call themselves vegetarian...

Seafood, for me, is crustacean. Other stuff what comes out of the sea is 'fish'. Being descended from a fishing family (my great-grandfather and his sons were fish merchants in Aberdeen; it's probably where I get my habit of getting up too early from), I'd like to think this was some kind of official position, but it's just my usage. To me there's a clear distinction between 'seafood pie' and 'fish pie'; if the former included cod or whitebait or some such, I'd be most upset.

[Dunx] As a piscivore myself, I often describe myself as vegetarian to avoid confusion - if a restaurant/hotel can cope with veggies, then they can cope with me. Plus telling people that you are a piscivore means they lock up their alcohol.

Hello. Nice to see about five new games have started across the servers since I went away - was that deliberate? Now I need to work on my space-time-continuum distortion device in order to find enough time to be able to play them!