Scientists estimate that Atlantic Bluefin populations have decreased by at least 90 percent over the last 50 years, and they warn that if over-fishing continues, the Bluefin species will be a distant memory. The international commission responsible for managing the Bluefin tuna population is meeting in Brazil to decide the fate of this iconic fish. Host Jeff Young visits Boston’s Sensing restaurant to hear about Executive Chef Brendon Bashford’s seafood choices. He then talks with Carl Safina, president of Blue Ocean Institute and adjunct professor at Stony Brook University. Professor Safina is skeptical that the commission will instate adequate protections for the Bluefin.