EFFECTS OF TOLUENE ON THE SURVIVAL, RESPIRATION, AND ADENYLATE SYSTEM OF A MARINE ISOPOD

被引:8
作者
BAKKE, T
SKJOLDAL, HR
机构
关键词
D O I
10.1016/0025-326X(79)90103-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Median times to narcotization (ET50) of Cirolana borealis Lilljeborg by various levels of toluene in seawater were determined. Narcotization quickly became irreversible, and the ET50 values can be regarded as estimates of median lethal times. Respiratory rate, ATP concentration, and energy charge (E.C.) were not significantly affected by sublethal toluene levels which caused behavioural disturbance. At 12.5 ppm of toluene (nominal concentration; ET50:69 h) ATP dropped gradually to less than 1% and E.C. to about 50% of the control values during 8 days, after which time all the individuals were dead. At 125 ppm neither ATP concentration nor E.C. changed significantly during 24 h although the animals were inactive after about 1 h and died within 100 h. Due to the high degree of stabilization of adenine nucleotide levels and E.C. during environmental changes, these parameters do not appear useful as general indices of stress in environmental pollution studies. © 1979.
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页码:111 / 115
页数:5
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