Hughes G M, Biró P
Research Unit for Comparative Animal Respiration, Bristol University, England.
Acta Biol Hung. 1993;44(2-3):231-41.
Oxygen consumption and swimming performance of rainbow trout exposed to sublethal concentrations (10-50 microliters/20 L) of pyrethroid (S-deltamethrin) pesticide was studied in a Brett-type respirometer during recovery. Results showed wide variations reflecting the varied responses of different individual fish to the test regime. In most cases values of oxygen consumption for the controls were higher at each swimming speed and this became significantly reduced following treatment with pesticide. Oxygen consumption soon after the treatment gave the highest values but these fish were unable to sustain swimming speeds as high as the controls or following recovery. The comparisons of swimming performance before and after treatments with deltamethrin have shown a significant effect on locomotory ability of rainbow trout which at the end of strong exposure (e.g. 50 min of 40 microliters/20 L) are almost incapable of swimming.
在恢复过程中，使用布雷特型呼吸仪研究了暴露于拟除虫菊酯（S-溴氰菊酯）农药亚致死浓度（10-50微升/20升）下虹鳟鱼的耗氧量和游泳性能。结果显示出很大的差异，反映了不同个体鱼对测试方案的不同反应。在大多数情况下，对照组在每个游泳速度下的耗氧量值都更高，而在使用农药处理后，耗氧量显著降低。处理后不久耗氧量最高，但这些鱼无法维持与对照组相同或恢复后的高游泳速度。用溴氰菊酯处理前后的游泳性能比较表明，对虹鳟鱼的运动能力有显著影响，在强烈暴露结束时（例如40微升/20升暴露50分钟），虹鳟鱼几乎无法游泳。
