DFO invests a lot of money in salmon stock assessment. There are still gaps that exist. Particularly as the ocean conditions become harder to predict and there's more variability and interest in managing more closely so that you have greater opportunities to harvest in smaller areas, you need more data. There is a continuing need for data, although there have been recent new investments and ongoing investments in salmon stock assessment.
On January 30th, 2019. See this statement in context.