I can offer a perspective.
First, the stock didn't decline nearly to the same extent. It declined to about 10% of its maximum size.
Second, Norway decided to curtail fishing activity at a time when the cod stock—and we haven't talked much about it today—still had a broad age and size structure. One of the unfortunate things we did in Canada was to keep fishing and fishing, and we narrowed and narrowed the size and age structure of cod, such that after the moratorium it was difficult to find a cod aged nine or 10, although the fish can live to age 24 or 25.