Abstract-The issue of heavy metal toxicity has received considerable attention in aquaculture field. Most studies of heavy metal in aquaculture have only focused on fish species and molluscs but not prawn. Thus, the key research objective of this study is to identify and study selected heavy metals in Penaeus vannamei in the study area. In this study, the mature prawns (5 months old) were collected and 1g of sample is digested using H 2 SO 4 and HNO 3 for 2 hours and filtered. The heavy metal concentration in prawn samples is determined using ICP-OES. The major heavy metals in the prawn head and shell are dominated by Fe>Cu>Zn>Cr>Mn>Ni while in prawn flesh is Fe>Zn>Cu>Cr>As>Ni>Mn. In this study, the highest heavy metals toxicity are prawn head> prawn shell> prawn flesh. In this study, it was found that most of the heavy metals are accumulated in the head of prawn whereas the least is in the shell of prawn.

Abstract-The aquaculture sector started in Malaysia since 1920s and has developed quickly nationwide. Sustainability of aquaculture depends on its adaptability to environmental changes. This research includes the study on the impact of the National Policy on Climate Change on the aquaculture industry. Policy appraisal and impact assessment approach have been carried out by having experts' interview and survey questionnaires. The Policy is expected to promote aquaculture sector according to its principles, strategic trusts and key actions. In line with this, the respondents suggested several criteria for the aquaculture sector to be climate resilient and hence developed in a sustainable manner. The results from analysing the Policy and the suggestions from respondents are expected to aid developing a climate-resilient aquaculture system model. Hence, better understanding of the potential climate change policy impact on aquaculture enables the policy-makers and stakeholders to plan and implement possible countering measures to achieve sustainability in aquaculture.Index Terms-Aquaculture, climate change policy, climate resilient aquaculture, policy impact.