Hi!
I fixed my framerate by ramping down my embark site from 16x16 to 9x9. I hope I don't have to regen for the fish fix, but I prolly will so I hope my seeds work fine.
I think that Toady One mentioned somewhere that the fix for the fish bug involved some procedures during world gen, so I believe it is probable that you will need to regen. As for seeds working, I think he mentioned in that also that he tried to preserve that - but again, I would not place bets on it.
What is it that makes you want to keep that seed? A small detail (e.g. a nifty waterfall) or just the greater context (e.g. jungle right next to glacier)?
Deathworks
Well, it is right near a river delta, is rich in flux and bauxite, and also has a crazy amount of bituminous coal. I can also get just about any metal (in ore OR bar form) from the caravan. It's got a nice section of trees and stuff, too. I dug down to the cavern and it's pretty swanky there, too. It seems like it has an entire congruous section of land over all three Z levels, so it should make exploring pretty easy, too.
I was hoping to locate a magma pipe, but with the amount of bauxite I'm thinking I may just dig my way down to the Sea of Fun and carefully build a Crazy Bauxite Fun Slide.
I used to have a fort in one of the interim versions after 3d but before 40d that was lovingly called Bokstrasp. It was epic. It had a river, flux, and bauxite. Oh, and it also straddled a magma pipe. I think the only thing it lacked was sand. Wait, no... It had that too. I can never get Bokstrasp back...
Sadness...
I like this map, though. The elves also seem to be frequently accosted by mountain goats. It's aggravating, though, because there's next to nothing to hunt. This may be something related to the fish bug, tho.