A tuna eats many of these anchovies over its life, accumulating the mercury in each of those anchovies into its body.
en.wikipedia.org Examples of oily fish include salmon, tuna, mackerel, herring and anchovy.
en.wikipedia.org Sardines, pilchards, and anchovies are small fish of the herring family, often salted and smoked and then preserved in oil.
en.wikipedia.org Examples include small forage fish, such as sardines, herring and anchovies, and other larger pelagic fish, such as salmon, trout, and mackerel.
en.wikipedia.org Normal fish stock can be used, but anchovy stock is a common choice.
en.wikipedia.org