Oily fish like bluefish, mackerel, sardines, trout and salmon have the perfect makeup for an intense marinade like this dill and lemon marinade. The fatty composition of these fish allow them to maintain integrity... for longer periods of time in the marinade. The acids in this lemon and dill marinade will slightly “cook” the fish (the way it’s done in ceviche) so that the cooking time is short and sweet. You’ll end up with a piece of fish that’s the perfect texture with a whole lot of flavor! Simple marinade recipes like this make it easy to get in your 3 recommended servings of oily fish a week.