The criterion that is most often used to characterize a fish as "healthy" include a reference to the omega 3 fatty acid content, or the amount of EPA and DHA
in the fish. Generally our best sources of these essential fats are the cold water fish including wild salmon, sardines, herring, black cod and anchovies. Sea Bass contains between .1 and .2 grams of EPA per 100 grams (3-4 ounces) of fish. Salmon by comparison is estimated to contain .8 grams per 100 grams. So in terms of the omega 3 content cold water wild salmon is the healthier choice, however, I would consider most fish (with the exception of the larger species that may concentrate heavy metals) a healthy choice. Seafood and legumes being low in fat and high in protein are among some of the best sources of non meat protein available. So eat up and enjoy!