Traceability was key to easing consumer fears after the 2010 Deepwater Horizon oil spill in the Gulf of Mexico, and that could offer Tohoku's struggling fishermen a way to deal with the Fukushima nuclear disaster, says the Texas fisherman who took the initiative in introducing the system.

According to Buddy Guindon, it wasn't easy to assure seafood buyers and consumers around the world who knew little about the fact that the area affected by the giant oil slick caused by BP's blown well was relatively small compared with the entire Gulf.

"We had a lot of people calling us asking if there were oil on our fish," Guindon, executive director of the Gulf of Mexico Reef Fish Shareholders' Alliance, said in an interview Thursday.