An advocacy group says consumers can't be sure what kind of shrimp they're buying just by looking at the label or menu in supermarkets, grocers and restaurants across the nation.
Oceana did a DNA-based survey of shrimp sold at outlets in New York City; Washington, D.C.; Portland, Oregon; and various spots around the Gulf of Mexico.
The group says it found about 30 percent of 143 shrimp products it obtained from more than 100 vendors were not what the label said.
It says cheap imported farm-raised shrimp is being sold as prized wild-caught Gulf shrimp, common shrimp sold a s premium, and shrimp of all kinds sold with no indication about where they came from.
The group is urging Congress and regulators to enforce proper labeling.