It's a very US orientated list though. I wouldn't avoid Scottish farmed Atlantic salmon, because I understand the dynamics of the salmon fishery in Scotland, and basically the advent of salmon farming probably prevented the salmon disappearing completely in Scotland.
It would also be ridiculous to be sitting in Scotland eating Alaskan salmon (never mind it's never that good because it has to be frozen and flown in).
And their treatment of atlantic scallops is too fascile. I'll eat hand dived - I try to avoid trawled.
But for the US it's probably a good list - but there are some issues with it for applying everywhere.
A UK based organisation which certifies fisheries as sustainable can be found at
http://eng.msc.org/