Research on the Water Quality Evaluation & monitoring Based upon Avoidance Reaction and Respiration Activity of Fish

本研究以蓝鳃鱼（Lepomis sp.）为实验对象，通过对Cd^（2+）、敌敌畏和金属加工废水的暴露试验，探讨基于鱼类的回避反应和呼吸活性的水质评价和有毒物质监测方法的可行性。以鳃运动频率和鳃运动强度作为呼吸活性的指标，发现这些指标对几μ g/l的Cd^（2+）、氯丙酸盐和1.0%的金属厂废水均有响应，对常见的水质指标如水温、pH、本实验还发现，用去除时间序列实验数据中趋势和周期性变化成分的容许变化区，对有毒物质响应的检测数据进行分析是有效的，Cd^（2+）暴露实验青鳉[Oryzias latipes（Temminck et Shiegel）的回避-偏好反应作为对有毒物质反应的指标，发现在1.0 μ g Cd^<2+>/l浓度下发生了偏好反应，并认为青鳉游泳姿势标准分布的设定方法对偏好反应的稳定和精确检测是非常重要的。估计鱼类的回避反应和呼吸活动可能是水质监测的良好指标

Object of this research was set to investigate the possibility of water quality evaluation & monitoring methods for toxic substances which is based upon avoidance reaction and respiration activity of fishIn the experiment of exposure of Cd^<2+>, Chloropropylate and effluent from metal processing factory to Blue-gill (Lepomis sp.) in which frequency of gill movement and It's intensity were used as an indicator of respiration activity of it, it was found that these indicator had responded to the concentration of several mu g/l of Cd^<2+> and Chloroplropylate, and 1.0% concentration effuent from metal factory.These indicator also had responded to the common water quality items such as water temperature, pH,electric conductivity and turbidity.It was also found in this experiment that the use of the permissible variation zone obtained by the removal of ingredients of trend and cyclic variation from experimental data of time series was effective in the data analysis for the detection of response to toxic substances.The experiment of exposure of Cd^<2+> to Medaka [Oryzias latipes (Temminck et shiegel) in hich avoidance-preference reaction was used as an indicator of response to toxic substances, it was found that preference reaction had occurred at the concentration of 1.0 mu g Cd^<2+>/l, and it was estimated that setting methods of the standard distribution in swimming position of Medaka was very important for the stabie and precise detection of preference reactionIt was estimated that avoidance reaction and respiration activity of fish may be good indicator for water quality monitoring