PCB ( Aroclor 1254 ) 가 한국산 담수어류에 (淡水魚類) 미치는 영향 = Adverse Effects of PCB ( Aroclor 1254 ) on Domestic Freshwater Fish

다국어 초록 (Multilingual Abstract)

The purpose of this study was to elucidate the adverse effects of Aroclor 1254 on domestic freshwater fish. The acute toxicity in terms of LC_(50)(mg/L) in 96 hours was evaluated for the freshwater fish, Oryzias latipes, Cyprinus carpio and Misgurnus anguillicaudatus. 96-hr LC_(50) values(that concentration kills half of the firth in 96 hours) were 0.053mg/L for newly hatched Oryzias latipes but above 200mg/L for adult Oryzias latipes. Concentrations of Aroclor 1254 above 100mg/L were not lethal to Misgurnus anguillicaudatus but half of Cyprinus carpio were dead after 96 hours in 100mg/L concentration. To assess the danger of Aroclor 1254 to aquatic invertebrates, bioassays were conducted with Daphnia magna. Fifty percent of hatched Daphnia magna died at 0.048mg/L concentration after 96 hours. It is suggested from this study that further study on Aroclor 1254 or other PCBs should be focussed en the mortality of the fish larvae with chronic exposure at low concentrations.