Toxic Effect of the Lindane, Chlordane, Super Diesel Oil and Waste Engine Oil on the Marine Copepod Tigriopus japonicus
Date Issued
2008
Date
2008
Author(s)
Chuang, Lun-Kang
Abstract
The Taiwan ecosystem continuously all exposure in the agricultural chemicals, not only causes to harm the fresh water basin system, but also influence the coast sea area ecosystem. Taiwan also is located the Ship transportation key position. On the ship is bringing the massive diesel oil as well as the engine oil. These oil classes possibly can release because of the accident, or intentional discarding, has become another kind of potentiality oil class pollution origin. This study aimed to investigate the effects of acute and chronic exposures of lindane, chlordane, the super diesel oil as well as the waste engine oil water accommodated fraction(WAF) on roosts copepoda Tigriopus japonicus. In the acute experiments, the 24, 48, 72 and 96 h median lethal concentration(LC50) values for lindane were 3.72ppm, 2.56ppm, 1.52ppm and 1.19ppm; chlordane were 5.00ppm, 2.46ppm, 1.20ppm and 0.71ppm respectively. The super diesel oil’s acute toxicity was not obvious, and the 24, 48, 72 and 96 h LC50 values for super diesel oil were 70.88%, 53.97%, 41.93% and 32.13%. In the chronic experiments, Tigriopus japonicus delay the time which peels off the shell when lindane in 100ppb, chlordane in 1ppb, 10ppb and 100ppb, oil class WAF under the low concentration not only the detention peeling off the shell time but also can cause the nauplius massive deaths. In the reproduction experiment except the lindane in 1ppb, super diesel oil WAF each group of as well as the waste engine oil WAF1%, other groups first time holding the egg had the remarkable difference existence with the control. Number of bearing eggs does not have the remarkable difference by exposure to the lindane in 1ppb, 10ppb, chlordane in 1ppb, 10ppb, the super diesel oil WAF1%, 5% as well as the waste engine oil WAF0.3%, 1%. Number of brooding size in all concentrations are lower than control and had the remarkable difference existence.
Subjects
Tigriopus japonicus
chlordane
lindane
super diesel oil
waste engine oil
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