You don’t have to eat that much salmon, just a typical 5oz serving 2-3 times a week? And it doesn’t have to be salmon either, you can get DHA and EPA from Sardines, Oysters, Mackerel, Herring, Trout, Anchovies…
Salmon's not a local fish here being the main reason - and catching Barra makes for time well spent outdoors.
I probably eat salmon once every other week.
There's a mail order fish company that would love for you to eat more salmon.