Without surveillance studies on mercury (Hg) levels in predominant fish species and parts eaten in a fishing community. the FAO/WHO guidelines might be surpassed. hence health risk. A monitoring study in a developing country with 29 Oreochromis niloticus (Nile tilapia) and 34 Lates niloticus (Nile perch) from landing sites provided muscle. https://www.markymarkscott.com/product-category/curls-rock-amplifier/