 According to stock assessments completed in 2011, 2014 and 2016 by the International Scientific Committee for Tuna and Tuna-Like Species in the North Pacific Ocean (ISC), the present-day population is at just 2.6 percent of its historic levels.The overall fishing mortality rate for this species remains up to three times higher than is sustainable.In 2010, it was estimated that the complete spawning biomass was 40–60% of the historically observed spawning biomass.