East Atlantic , Mediterranean stocks down by nearly 61 percent in the last decade . The popular sushi staple has been the focus of international attention as East Atlantic and Mediterranean populations of the fish have decreased by an estimated nearly 61 percent in the last decade , according to International Commission for the Conservation of Atlantic Tunas ( ICCAT ) , the inter-governmental group that manages tuna fisheries in the Atlantic Ocean . Comment: Brought to the table by Monaco , it aimed to reduce the overall harvest .
East Atlantic , Mediterranean stocks down by nearly 61 percent in the last decade . Comment: Brought to the table by Monaco , it aimed to reduce the overall harvest .