So, what happened this year? The quotas were increased for eastern and western bluefin stocks by 52 percent and 18 percent, respectively. The commission raised the eastern bluefin quota to 36,000 metric tons by 2020, even though the SCRS advised that a quota of 28,000 tons or less would be necessary to allow the stock to continue to grow. The western bluefin quota was set at 2,350 metric tons annually through 2020, which is the highest in a decade and also takes place during the last year of a rebuilding plan that was initiated in 1998. While scientists believe these increases will still prevent overfishing, there is concern that quota hikes may prevent these stocks from rebuilding.