Significant metal buildup within the organs of Lethrinus sp. and Caranx ignobilis (Forsskål 1775) from Kao Bay waters, Indonesia

Abstract

Abstract Fish organs can contain heavy metals. This study’s objective was to map the distribution of heavy metals in several fish organs.. The research was conducted in Kao Bay waters from April to September 2019. The samples obtained were prepared at the aquatic science laboratory of Khairun University and were analyzed at the Environmental Productivity Laboratory of IPB University Bogor using the AAS instrument to determine heavy metals. The heavy metals accumulation in Lethrinus sp fish meat was Zn > Cu > Mn > Pb > Ni > Hg > Cd, and in gill was Zn > Pb > Mn > Ni > Hg > Cd. The accumulation of heavy metals in Caranx ignobilis fish meat was Zn > Pb > Mn > Cu > Ni > Hg > Cd, whereas the accumulation in the gills was Zn > Pb > Ni > Mn > Cd > Hg > Cu. Zn accumulation was the highest heavy metal discovered in fish as a result.