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

本研究旨在探讨在镉、氯丙酯和金属加工厂废水对蓝鳃(Lepomis sp.)以鳃运动频率及其强度作为其呼吸活性的指标，发现这些指标对Cd~(2+)和Gt~(2+)的浓度有响应；这些指标对常见的水质指标如水温、pH、电导率、浊度等也有较好的响应。本实验还发现，通过去除时间序列实验数据中的趋势变化和周期变化成分得到的允许变化区，用于检测有毒物质的响应是有效的数据分析。以回避-偏爱反应为指示物质对有毒物质的反应，发现在1.0mgCd~(2+)/L的浓度下就发生了偏爱反应，并估计了在游泳位置的标准分布的设定方法对于稳定和准确地检测偏爱反应是非常重要的。估计鱼类的回避反应和呼吸活性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