Yes, that's correct. Stock assessments suggest the fishing mortality rates were high, but the data are good enough. We have so much data that we can estimate the natural mortality rates as they vary from year to year. With northern cod, it appears that there's a consistent finding that in the natural mortality rate there was a really big spike. We don't know why. There's no explanation. There may be some correlation with oceanographic variables, but back in 1990 there was a very big spike.
This paper that you're looking at is focused on the southern Gulf of St. Lawrence cod stocks. I don't believe that we actually made much reference to the northern cod stocks. We haven't studied that so we can't make a statement.