What fish have high mercury concentrations?
Fish species known to be high in mercury include some Tuna, Billfish, Swordfish, Broadbill, Marlin, Mackerel, Shark, Orange Roughy and Deep sea Perch. The recommendation for fish considered high in mercury is to limit to one serve per week (1 serve equals 150g) though there is no guarantee that there will be no negative impacts from eating even this small amount contaminated fish. See the end of this article for a list of species to avoid. What are the links between mercury and the conservation of fish species and environments?