| Title |
Acute Toxicity of Carassius auratus and Pungtungia herzi Lavra on Mercury, Lead and Copper Exposure |
| Authors |
조규석 ( Kyu Seok Cho ) ; 박종호 ( Jong Ho Park ) ; 김주찬 ( Ju Chan Kang ) |
| Keywords |
Carassius auratus; Pungtungia; Larval stage; Heavy metals; LC50 |
| Abstract |
Larva of Carassius auratus and Pungtungia herzi were exposed to mercury (HgCl₂), lead (PbCl₂) and copper (CuSO₄) to determine acute toxicity. The toxicity tests were conducted triplicate and the LC_(50) values (24, 48, 72 and 96 hours) were determined for two species. Data obtained from the toxicity tests were evaluated using the probit analysis. Although sensitivities of two species to mercury were relatively similar, C. auratus was more susceptible than P. herzi to the exposure of lead but P. herzi was more sensitive than C. auratus on copper. The sensitivity on three metals tested may be ranked in the following order from highest to lowest toxicity on larval stage of these fish: mercury > copper > lead. It is suggested that acute toxic test at the larval stage of C. auratus and P. herzi, indigenous species in Asia area, is an important part of the ecotoxicological assessment of some heavy metals. |