I guess several things need to be examined here.
First, seals are responsible for what percentage of natural mortality in cod? In the analyses we've done, it's fishing that has driven down the cod population. Is what limited fishing that now exists the main factor limiting the recovery, or is it what is being consumed by the grey seals? When we look at overall mortality, is the mortality that we can attribute to grey seals the major feature, or are there other aspects that we don't understand? That's where one big gap is right now. What component of total mortality can be allocated to grey seals versus other sources of mortality?