Reduction of Mercury Accumulation in Carp Tissues (Cyprinus carpio L.) by Natural Organic Matter and Chlorides
- 45 Downloads
In natural waters and in breeding tanks certain substances are naturally present in the water or deliberately added to it. Some of these substances are characterized by the formation of strong complexes with mercury and thus they can reduce the intake of mercury by aquatic organisms. The accumulation of mercury in six selected tissues (skin, scales, kidneys, muscle, liver and gills) of Cyprinus carpio L. in the presence of humic acid and sodium chloride was studied. Carp fingerlings were exposed in fish tanks for 3 days to the bulk solution containing a defined concentration of Hg2+ (1.5 μg/l) and increasing concentration of humic acid (0–5 mg/l) and chloride ions (18–600 mg/l). The fish were not fed during the experiment and mercury accumulated in the carp tissues from fish tank water only. Total mercury content in water and in selected tissues was determined by the atomic absorption spectrometer AMA 254. Increased concentration of both humic acid and sodium chloride caused reduction of mercury accumulation in carp tissues up to 93 and 45%, respectively.
KeywordsCommon carp Humic acid
This research was financially supported by Project No. QJ1210013 National Agency for Agricultural, Ministry of Agriculture Czech Republic.
- Ardakani SS, Jafari SM (2014) Assessment of heavy metals (Cu, Pb and Zn) in different tissues of common carp (Cyprinus carpio) caught from Shirinsu Wetland, Western Iran. J Chem Heal Ris 4:47–54Google Scholar
- Clesceri LS, Greenberg AE, Eaton AD (1998) Standard methods for the examination of water and wastewater, 20th edn. American Public Health Association Inc., Washington D.C., USAGoogle Scholar
- Sari M, Tuzen M (2009) Biosorptive removal of mercury(II) from aqueous solution using lichen (Xanthoparmelia conspersa) biomass: kinetic and equilibrium studies Original Research Article. J Hazard Mater 169(1–3):263–270Google Scholar
- Spehar RL, Christensen GM, Curtis C, Lemke AE, Norbert TJ, Pickering QH (1998) Effects of pollution on freshwater fish. J Water Pollut Control Fed 54:877–922Google Scholar
- Spurny P, Mares J, Hedbavny J, Sukop I (2002) Heavy metal distribution in the ecosystems of the upper course Jihlava River. Czech J Anim Sci 47:160–167Google Scholar
- Svobodova Z, Vykusova B, Machova J, Bastl J, Hrbkova M, Svobodnik J (1993) Monitoring of foreign substances in fishes from the Jizera River in the Otradovice locality. Bull VURH Vodňany Czech Repub 29:28–42Google Scholar
- Svobodova Z, Zlabek V, Celechovska O, Randak T, Machova J, Kolarova J (2002) Content of metals in tissues of marketable common carp and in bottom sediments of selected ponds of South and West Bohemia. Czech J Anim Sci 47:339–350Google Scholar
- Svobodova Z, Kolarova J, Navratil S, Vesely T, Chloupek P, Tesarcik J, Citek J (2007) Nemoci sladkovodnich a akvarijnich ryb. Informatorium, Czech RepublicGoogle Scholar
- Tuzen M, Sari A, Mendel D, Soylak M (2009c) Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: equilibrium, thermodynamic and kinetic studies Original Research Article. J Hazard Mater 171(1–3):500–507Google Scholar
- Velcheva IG (2006) Zinc content in the organs and tissues of freshwater fish from the Kardjali and Studen Kladenets Dam Lakes in Bulgaria. Turk J Zool 30:1–7Google Scholar
- WHO (1991) Inorganic mercury. Environmental health criteria 118. International programme on Chemical Safety. World Health Organization, GenevaGoogle Scholar