Canned fish (salmon or tuna) vs. Fresh

WHFoods: Does canned fish (salmon or tuna) have any sort of nutritional benefit when compared to fresh fish?:

"Does canned fish (salmon or tuna) have any sort of nutritional benefit when compared to fresh fish?

While I always like to recommend foods as close to their whole, natural forms as possible, I do make exceptions when the more processed form of the food features more benefits. Tuna serves as a great example of this." Says WHFoods.