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Lead and Mercury Bioaccumulation in the Fish of Floating Net Cage Fisheries |
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| รหัสดีโอไอ | |
| Creator | 1. Mariana Marselina 2. Qori Atur R. Suhada |
| Title | Lead and Mercury Bioaccumulation in the Fish of Floating Net Cage Fisheries |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2563 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 13 |
| Journal No. | 3 |
| Page no. | 50-60 |
| Keyword | Lead, Mercury, Floating net cage, Reservoir, Water pollution |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | Saguling Reservoir has multiple roles, and functions principally as a hydroelectric power station. Other roles include supporting the fisheries and the transportation and tourism sectors. Recently, Saguling Reservoir has been widely used for freshwater fisheries. These fisheries have benefited from the development of floating net cages for fish farming in the 1980s. There are now more than 35,000 floating net cages business units or plots owned by the community in the SagulingReservoir area. Heavy metals are among the water quality pollutants in the Saguling Reservoir. Hg and Pb are nonessential trace elements that were reported recently as serious problems in the Saguling Reservoir. These metal contents are thought to contaminate fish populations in both floating net cage and nonfloating net cage areas. For example, Hg can have a detrimental effect on the human body, involving the central nervous system and the cardiovascular system, as well as having negative effects on animal immune and reproduction systems. This research was carried out in the Saguling Reservoir precisely at three different sampling points involving nonfl oating net cage stations and two floating net cages stations as representative sites for heavy and moderate polluted areas, respectively. Pb and Hg heavy metal analyses were conducted in the water, fish, feed, and substrate. The heavy metal analyses were done using inductive coupled plasma-mass spectrometry (ICP-MS). The processing of heavy metal concentration data in each compartment was carried out using two-way ANOVA and Tukey post-hoc analysis. The results showed that the mean Pb concentration in sediments was 7.7925 - 0.8575 mg/kg, which was significantly higher than the Hg concentration. On the contrary, in all fish feed brands, the Hg concentration was considerably higher than Pb. Based on the analysis, Pb accumulation in sediments might be strongly enhanced by the upstream waste industry load and leaching from inland agricultural activity, which enters the reservoir. The result showed no significant differences in Hg concentrations in fish muscle between stations, between the nonfloating net cage and floating net cages treatments. The concentration of Pb and Hg in fish muscle was lower than the permissible limit for human consumption set by the Indonesian Government and the World Health Organization. |
