Thank you very much for the question.
Egg abundance data is the data used to estimate the abundance of the Canadian contingent of the stock. It refers to females that lay eggs in a specific area, known as the spawning zone. By estimating the fertility of the females based on the number of eggs laid, we can calculate the number of fish present in the area. This is what allows us to estimate the spawning biomass of the stock.
Obviously, this does not allow us to assess the portion of the population that has not yet spawned. This type of method does not allow us to see all juvenile mackerel, which are not yet adults. What is most important, however, is still measuring the adult biomass, since it is this biomass that subsequently replenishes the stock.
This well-proven method was developed in Europe, is used in Canada, and enjoys broad scientific consensus.
As for sightings of large schools or shoals of mackerel, I have no doubt whatsoever about what the fishermen are saying. Mackerel is a species that moves in large schools, and there are still thousands of tons of mackerel in the Canadian contingent of the stock. If the mackerel are in one location anywhere in the gulf, you are sure to see a lot of them. It’s just that we are currently below the reference limit. According to the data we have from the egg survey, we are well below the reference limit. That is why we should avoid fishing the stock at this time.