Comparison of bioconcentration factor of heavy metals between endemic fish and aquacultured fish in Maninjau Lake, West Sumatra, Indonesia

Abstract. Komala PS, Azhari RM, Hapsari FY, Edwin T, Ihsan Zulkarnaini, Harefa M. 2022. Comparison of bioconcentration factor heavy metals between endemic fish and aquacultured in Maninjau Lake, West Sumatra, Indonesia. Biodiversitas 23: 4026-4032. Fish have a high risk accumulating poses entering human bodies through the food chain. This study aims to analyze concentration lead (Pb), mercury (Hg), cadmium (Cd) spatially temporally as well Bioconcentration Factor (BCF) (Rasbora argyrotaenia) (Oreochromis niloticus) Lake its relationship environmental parameters (pH, DO temperature). Sampling was conducted at domestic, hydropower, cage, fisheries. Spatial temporal distribution using one-way ANOVA with 95% significance, while parameter correlation linear regression. Almost all both samples exceeded permissible level except fisheries sites. Metal concentrations species showed significant difference, no difference. Rasbora argyrotaenia slightly higher BCF value than O.niloticus. The values were low accumulative order Pb>Hg>Cd ??in R. Pb>Cd>Hg for O. niloticus. There is strong positive temperature three different metals. Monitoring by keeping metal content within acceptable limits necessary. Further research on analysis consumption humans recommended.