wondering how does it take 10-15 years?I think it's possible, but probably not in the near future. The environmental review that the courts want done in order to lift the ban apparently would cost $10 million and take 10-15 years.
fish are a renewable resource.
count numbers. it doesn't take 10-15 years.
I waterfowl hunt in North America. every year there is a count done on every type of duck we are allowed to hunt.
some years we get a 30 day season, others a 60 day season. number of a specific duck you can shoot may change each year according to the species count.
do a count, have a limited collection season. count the numbers next year.
if it's just because the locals don't want "their" fish being taken and the courts are going to back that, then doesn't matter what study is done.