The Icelandic stocks are doing well, and so are the ones off northern Norway. I think the fundamental reasons are that they did go through a period of decline, but they didn't decline anywhere near as much as ours did. There was a much greater, I guess you'd call it, spawning biomass still in the water to generate a recovery.
They also had very favourable environmental conditions in those two areas, and both of these factors together generated good recovery of those stocks.