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2 2020

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Accumulation of heavy metals (Fe, Zn, Cu, Mn, Cd and Pb) in mullets Planiliza subviridis (Valenciennes, 1836) and Ellochelon vaigiensis(Quoy & Gaimard, 1825) from Damb Harbor, Balochistan, Pakistan

Ahmed Quratulan, Benzer Semra, Ali Qadeer M., Baloch A. Buksh

Oceanological and Hydrobiological Studies

2020

Vol. 49, No. 2

140--146

In this study, muscle samples collected from Planiliza subviridis (Valenciennes, 1836) and Ellochelon vaigiensis (Quoy & Gaimard, 1825) caught on the Balochistan coast (Damb Harbor) between January and December 2015 (during the northeast monsoon, post-monsoon and pre-monsoon seasons, and the southwest monsoon) were analyzed to determine concentrations of heavy metals: iron, zinc, copper, manganese, cadmium and lead by an atomic absorption spectrophotometer, expressed per unit of dry weight of each sample. The average measured level of Fe, Zn, Cu, Mn, Cd and Pb for P. subviridis was 26.70 ± 11.49 μg g-1, 13.82 ± 4.56 μg g-1, 1.66 ± 0.84 μg g-1, 0.24 ± 0.10 μg g-1, 0.06 ± 0.07 μg g-1 and 0.17 ± 0.14 μg g-1, respectively. The average level of the same metals for E. vaigiensis was 29.26 ± 10.18 μg g-1, 18.85 ± 6.28 μg g-1, 2.18 ± 1.01 μg g-1, 0.32 ± 0.14 μg g-1, 0.25 ± 0.11 μg g-1 and 0.30 ± 0.12 μg g-1, respectively. The highest Pb accumulation (0.56 μg g-1 and 0.61 μg g-1) detected in P. subviridis and E. vaigiensis is above the limit value (0.50 μg g-1) reported by FAO, hence the accumulation of Pb in these two fish species should be monitored in the future.

Heavy metal contamination in water, sediments and Planiliza subviridis tissue in the Donan River, Indonesia

Siregar Asrul S., Sulistyo Isdy, Prayogo Norman A.

Journal of Water and Land Development

2020

no. 45

157--164

Heavy metals like cadmium (Cd) and lead (Pb) are pollutants that are toxic, difficult to decompose and accumulate in biota. One of the biota that lives in the waters is mullet fish. This fish is demersal, has a relatively long life period, has a specific tolerance to the aquatic environment and highly consumable in Indonesia. Therefore need to know the metal content of Cd and Pb in water, sediments and mullet fish and their relationship in Indonesia. The study used a survey method with purposive random sampling at four stations, three replications. The study was conducted from June to November 2019. Analysis of data was descriptive, F-test and correlation. The results showed that the heavy metal content of Cd and Pb between stations in the water media, sediment and in mullet fish there was a significant difference. The highest Cd and Pb were showed in station III, coming from the oil industry, domestic waste and transportation activities. The heavy metal content of Cd and Pb in water, sediment and mullet fish (Planiliza subviridis) in the Donan River, Cilacap shows results exceeding the allowed threshold and danger to human health.