Yes, this fish along with king mackerel, shark, and marlin contain a lot of mercury. This large, predatory fish contains elevated levels. Two fish species that were mentioned as an example were swordfish and shark. Since swordfish is one of the biggest we consume, it contains a lot of this element. Before shopping for seafood, familiarize yourself with the levels of mercury in fish. Although the mercury in seafood isn't a concern for most adults, special precautions apply if you're pregnant or planning to become pregnant. 14. Some of the fish and seafood with high mercury levels include: â¢ Shark â¢ Swordfish â¢ Tilefish â¢ King mackerel Because the way chemicals get concentrated as you go up the food chain, swordfish end up with a large concentration of mercury in them. Sharing is caring! Since this fish consumes a wide variety of prey and lives for a long time, it can accumulate significant amounts of mercury ( 23 ). But some types of seafood â particularly large, predatory fish such as shark, swordfish, king mackerel and tilefish â can contain high levels of mercury. In fact, the mercury in this fish is so high that the Environmental Defense Fund recommends women and children avoid it altogether. Ideally, all seafood contains mercury. You may also sort the table by SPECIES in alphabetical order. â Is Swordfish high in mercury? Here are the fish with the highest amounts of mercury: Tilefish (Gulf of Mexico) â Containing a whopping average 219 micrograms of mercury, the tilefish native to the Gulf of Mexico, tops the list of mercury-tainted seafood. The media, in cooperation with scientists, public health nutritionists and dietitians, should place more emphasis on the existence of a few fish species with high to very high mercury levels and relatively low contents of beneficial omega-3 fatty acids. Swordfish; Marlin; Orange roughy; Ahi Tuna; Bigeye tuna; High Mercury Fish. Swordfish â¦ Mercury is the main concern when it comes to avoiding swordfish. The older and bigger the fish is the more mercury it accumulates. While not the highest in mercury, youâll still have to limit these mercury-containing fish to three 6-ounce servings (or less) per month, note the Natural Resources Defense Council and American Pregnancy Association. Mercury compounds are pollutants that get into the environment. However, some seafood has high levels of mercury while some have minute levels. For men, the recommendation is to eat no more than one serving a month. All water eventually flows into the ocean carrying the mercury. The agencies advise that young children and women of childbearing age avoid four fish with the highest mercury levels: swordfish, shark, king mackerel, and tilefish from the Gulf of Mexico. High concentrations of mercury, a neurotoxin that can damage developing brains in fetuses, are found in some kinds of popular fish such as albacore tuna. Go up the food chain and you get to the higher predators like swordfish. The portions of dark meat in fillets should be red, not brown. Swordfish are a large predatory fish high on the food chain. Swordfish. Swordfish flesh is typically white or tinged with pink, but not beige. Shark â 151 micrograms of mercury; Swordfish â 147 micrograms of mercury; Mackerel King â 110 micrograms of mercury The table is sorted by MERCURY CONCENTRATION MEAN (PPM) from fish with lowest levels of mercury to highest levels of mercury. â Why is swordfish high in mercury? Here are some low-mercury fish choices and fish to avoid.