In a recent Oceana investigation of seafood fraud, the organization bought fish sold at restaurants, seafood markets, sushi places and grocery stores, and ran DNA tests. It discovered that 33 percent of the fish was mislabeled per federal guidelines. Fish labeled snapper and tuna were the least likely to be what their purveyors claimed they were.

Several years ago, Red’s Best developed software to track the fish it procures from small local fishermen along the shores of New England. Sea to Table, a family business founded in the mid-1990s with headquarters in Brooklyn that supplies chefs and universities, has also developed its own seafood-tracking software to let customers follow the path of their purchases. Wood’s Fisheries, in Port St. Joe, Fla., specializes in sustainably harvested shrimp and uses software called Trace Register.

And starting this fall, the public will be able to glimpse the international fishing industry’s practices through a partnership of Oceana, Google and SkyTruth, a nonprofit group that uses aerial and satellite images to study changes in the landscape. The initiative, called Global Fishing Watch, uses satellite data to analyze fishing boat practices — including larger trends and information on individual vessels.

I had learned that not everything called tuna is actually tuna...

http://pandawhale.com/post/72202/the-awful-truth-about-salmon-and-tuna

...but it seems that Global Fishing Watch watches the practices and does not actually certify that what's on my plate is actually tuna.