Distribution and accumulation of heavy metals from waters and sediments to Scylla serrata in Segara Anakan, Cilacap

Abstract

Some heavy metals of Cd, Cu, Pb, and Hg polluted in Segara Anakan Cilacap, but no information on a specific heavy metal pollution in this area and an edible mud crab of Scylla serrata. The research aimed to know their distribution in this area and their accumulation of heavy metals from waters and sediments to Scylla serrata. The study was done using a survey method with purposive random sampling at six stations from Station SA-2-28 and SA-3-46 (with a high percentage mangrove canopy cover) to Station SA-2-24, SA-3-35, SA-1-10, and SA-3-16 (with a low percentage mangrove canopy cover). Three replications were done in the dry season conditions from July to September. The researcher took all samples with the water sampler tool, sediment core, and baited trap for sampling. Then, they were analyzed using Atomic Absorption Spectrophotometry (AAS) method. The result showed that the lowest heavy metals were at Station SA-2-28 and SA-3-46 and followed by Station SA-2-24, SA-3-5, SA-1-10, and SA-3-16 due to the high percentage of mangrove canopy cover, while the reserve order was due to the increased pollution in east side areas of Segara Anakan Cilacap. The heavy metal accumulation of Cd, Cu, Pb, and Hg has occurred from waters and sediments to Scylla serrata.