We are watching the full and steady rebound of global whale populations. Ultimately we will also see the whole global fishery reach and surpass historical levels as we apply our knowledge.
It is all good news generally although there is much to be done. Not least we need to implement iron fertilization in known ocean gyres in particular to stimulate food production. This is not even a difficult trick and compares to the natural process of using volcanic ash falls..
Gyres are important because they anchor fish migration and maturation. Thus fertilization can stimulate a sharp increase in fish biomass. Of course, this little bit of science continues to be ignored.
Astonishing' blue whale numbers at South Georgia