Count Aldi, Whole Foods Market and Trader Joe’s Co. among retailers who have pledged not to sell genetically engineered salmon or other seafood, according to a new advocacy campaign. The Campaign for Genetically Engineered-Free Seafood — a coalition formed by the Consumers Union, Friends of the Earth and other groups — also announced support from Marsh Supermarkets, PCC Natural Markets and co-ops in California, Kansas, Minnesota and New York.