In the third edition of Greenpeace’s seafood sustainability scorecard, called “Carting Away the Oceans,” more than half of the leading supermarket chains in the U.S. have now made some progress in increasing the sustainability of their seafood operations.

The supermarket chain Wegmans received top ranking followed by Ahold USA, while Whole Foods dropped to third place from its December 2008 first place ranking. Trader Joe’s remains ranked at # 17, the worst ranking of the national supermarket chains surveyed. .

“The good news is that seafood sustainability is now on the radar of many major retailers so we are seeing a shift in practices, but much more progress is needed,” said Greenpeace’s Senior Markets Campaigner, Casson Trenor. “Unfortunately, our oceans remain in crisis and retailers that ignore this fact are contributing to the collapse of our marine ecosystems.”

Of the 20 largest supermarket chains in the United States, nine remain that have made no visible effort to increase the sustainability of their seafood operations and continue to ignore scientific warnings about the crisis facing global fisheries and the marine environment. These include: Aldi, Costco, Giant Eagle, H.E.B., Meijer, Price Chopper, Publix, Trader Joe’s, and Winn Dixie.