I tried my first frozen fish today. On the menue was frozen Chum Salmon that I bought at Lidl. It was very cheap so I thought it worth a try. Chum salmon is a fish from the Pacific and it seems to be of inferior quality. In my opinion it tasted pretty bad. Fishy in a bad way, without being old. ANd it was very low fat, I believe it said 1,2 grms fat per 100 grms fish. I tried to conceal the taste with some lemon and olive oil but the consistency was woody and generally unattractive. I don't recommend it, even if sadly I have understood that Chum has veeery good high omega-3 and low omega-6 ration, which I have understood is the ideal. But as I said, it seemed that the fish had virtually no fat, so I guess there can't be much Omega-3 anyway..
The only thing that was good was the price.. I was standing with a pack of Alaska Pollock in my hand, but ruled against it.. It tastes bad when cooked, so I guess it would be bad raw too.