I did a study on salmon. NutritionData.com listed Atlantic and Pacific salmon both wild caught and farmed. They also list other salmon types. I decided to average the data to come up with a GENERIC entry for my study (who knows what you are getting). This proved fruitful in that most data items were similar; calories, fat, etc. I did find one anomaly with Omega 3 and Omega 6. Most salmon has a healthy ratio with Omega 3 being higher than Omega 6. This was reversed with farmed Atlantic salmon. I emailed the site nutritionist and she confirmed the error. It turns out the farming operation was feeding their salmon improperly. They have fixed the problem. What I was seeing was the old data which she indicated the FDA would be updating soon.