Abstract: Heavy metals pollution is a leading problem in aquatic environment. Many expensive techniques have been applied to treat seawater for removal of heavy metals. Heavy metals remediation by seaweeds is less cost-effective and eco-friendly method. The main aim of the present study is to evaluate the trace metals accumulation by different parts (Foliage like part, Stem like part and reproductive part) of two species of Turbinaria such as Turbinaria decurrens and Turbinaria ornata collected from Olaikuda, southeast coast of India. This is the first time study to estimate of heavy metals content of different parts Turbinaria decurrens and Turbinaria ornata to find the specific area which is mainly responsible for accumulation of high amount of heavy metals. ICP-MS (Inductively Coupled Plasma Mass Spectrometry) was used to estimate the trace metals content .This work reveals that the foliage part (leave like structure) and reproductive part of both species are accumulating highest amount of Pb, Cd, As, Fe and Cr. Turbinaria spp. are not edible for its quite hard and thorny morphological structure, but as they are accumulating heavy metals in high amount expectedly, both species will be utilized for removal of heavy metals from polluted area as bioremediator. From this study, it is concluded that both of the Turbinaria sp. will be used as bio-indicator of heavy metals pollution in the marine environment.

Keywords: Turbinaria sp., Different parts, Heavy metals, Remediation.