So, health authorities advise against eating certain long-lived predators, like shark, swordfish, king mackerel and
tilefish. That's especially important for pregnant women and young children, since the developing nervous system is vulnerable to mercury's toxic effects.
Pregnant women should limit fish/seafood intake to 8 ounces a week." Large predatory fish such as shark, swordfish,
tilefish, or king mackerel are most prone to mercury; haddock, flounder, pollock, and tilapia are among fish lowest in mercury.
Chestnut agnolotti with lobster is one of the latest additions, along with
tilefish with tangerine-fennel broth and duck breast with kale, toasted pine nuts and parsnip puree.
Cullen, adding that seafood such as shark, swordfish, king mackerel,
tilefish, Bigeye (Ahi) tuna steaks, and other long-lived fish high on the food chain should be avoided completely because of high mercury levels.
In any case, there are large fish such as sharks,
tilefish, swordfish, and king mackerels that sometimes already contain dangerously high levels of mercury in their tissues.
Aggregate species include: gag, black, snowy, misty, red, scamp, yellowedge, yellowfin, yellowmouth grouper; blueline, sand, golden
tilefish; coney, graysby, red hind and rock hind.
High mercury fish: swordfish, king mackerel, shark,
tilefish, orange roughy, marlin, ahi and bigeye tuna
The following have higher content of mercury: swordfish, shark, king mackerel and
tilefish. 'Avoid eating them, as possible,' experts warn.
The healthiest approach for women who are or may become pregnant or are nursing mothers is to eat two servings per week of fish or other seafood and avoid the four fish species higher in mercury (shark, swordfish, king mackerel, and
tilefish, the latter sometimes called golden bass or golden snapper).
Mercury is found in most seafood, but is most concentrated in large fish, such as shark, swordfish,
tilefish, king mackerel, bigeye tuna, marlin, and orange roughy.
Further, the advisory, published in the journal Circulation, laid emphasis on eating fish such as shark, swordfish,
tilefish, king mackerel, bigeye tuna, marlin and orange roughy that are high in mercury.
Mercury is found in most seafood but is prevalent in large fish such as shark, swordfish,
tilefish, king mackerel, bigeye tuna, marlin and orange roughy, researchers said.