There is no definitive answer to this question because so many variables need to be considered, including the diet of the fish. In general, farmed-fish that are fed fishmeal and fish oil tend to have more omega-3s than those fed a grain-based diet heavy on vegetable oils (a common choice because it is cheaper). Wild fish eat a naturally varied diet, including krill and other sea creatures, plus algae. All “Atlantic salmon” is farm-raised, a reality stemming from the fact that wild sources have been depleted from the ocean. All “Alaskan salmon” is wild, and much of it is canned. The “Pacific species,” including coho (silver) and Chinook (king) can be wild or farmed. Bottom line: On the whole, it is probably safe to say that wild-caught and farm-raised salmon have approximately the same amount of omega-3s. Read more www.sierraclub.org/e-files/wild_salmon.asp; www.edf.org/seafood; www.edf.wa.gov;   www.blueocean.org; www.montereyabyaquarium.org.

More about Omega-3, Salmon