Linking Heavy Metal Levels in Aquatic Environments to Bioaccumulation in Fish

ABSTRACT: Human health as well as aquatic species are seriously threatened by heavy metal pollution in aquatic environments. This study examines how heavy metals bioaccumulate in Labeo rohita (rohu), a popular freshwater fish, from two aquatic sites of Jaipur, Rajasthan those have been industrially contaminated. The quantities of heavy metals, such as lead (Pb), arsenic (As) and cadmium (Cd) were measured in water and fish samples.The concentration of heavy metals in Labeo rohita was influenced by factors such as the sampling location, the size of the fish, and the season. Bioaccumulation analysis revealed that metals were predominantly stored in the gills, liver and muscle tissues. Fish muscle tissue and water metal concentration showed seasonal changes, with higher amounts during the dry season.