I know whales arnt real fish but I bet some fish keepers must be pleased whale could be back on the menue. If hunting whales was banned all together without any other predators they would multiply at an alarming rate ,empting the sea of fish and krill quicker than a fleet of Spanish trawlers. As they have done before, they would evolve, grow legs and come ashore ! probably targeting Japan or Linconshire .All of our food not just the do gooders would be eaten and squashed (probably how the dinosaures died out).I think they have taken a bit to much space up already.If the reaf busting blubber masses were inteligent how come they havent started fighting back , Orc did in the hollywood film ! or are they quietly already doing so swimming north and breathing on the ice cap!