| the effects of mariculture on heavy metal distribution in sediments and cultured fish around the pearl river delta region, south china. | thirty-six sediment samples were collected from six mariculture sites and corresponding reference sites (approximately 200-300 m away from each mariculture site) to study the effects of mariculture on heavy metal: copper (cu), zinc (zn), chromium (cr) and lead (pb) distribution in sediments and cultured fish around the pearl river delta region, south china. the mean concentrations of cu, zn, cr and pb in all mariculture sediment samples were 109, 273, 99 and 33 mg/kg, compared with 63, 209, 56 a ... | 2016 | 26807936 |