"Farmed and dangerous"

salmon farmers keep costs down by feeding their stock cheaper fish meal, producing salmon with grayish flesh, some grocery stores have been known to sell dyed fish to fit consumer expectations of what salmon should look like.

"They're so confined that they're essentially stewing in their own feces," says Don Coleman, 42, from Berkeley, Calif., a volunteer from the nonprofit Friends of the River. Another good protest tactic: grossing out the would-be...