I'll have the Chilean farm raised salmon with a side of pesticides
Reason number 1,476 not to eat farm raised salmon.
The Pew Environment Group recently acquired documents from the U.S. Food and Drug Administration (FDA) revealing that three Chilean salmon farming companies, including the two largest producers of farmed salmon, used a number of drugs not approved by the U.S. government. These chemicals include the antibiotics flumequine and oxolinic acid and the pesticide emamectin benzoate. The documents further show that the farmed salmon containing residues of unapproved chemicals were destined for the U.S. market.
Chile is the primary source of farmed salmon consumed in the United States. LINK