What is the difference between wild and farm-raised salmon?

The biggest difference between farm-raised and wild salmon is that they are typically a different species. Wild-caught salmon may be one of five different Pacific species, including Sockeye, Pink, Coho, Chinook, and Chum; farm-raised salmon is typically the Atlantic species, with some production of Pacific Chinook salmon. With farm-raised salmon, however, you have the benefit of it being fresh and available year-round. In every other major respect, farm-raised and wild salmon are the same, and all very healthy for you.