The Role of AChE in Swimming Behavior of Daphnia magna: Correlation Analysis of Both Parameters Affected by Deltamethrin and Methomyl Exposure

Figure 1

The swimming behavior and the AChE activity (% of control) inhibition of D. magna after in vivo exposure in both DM and MT. M ± SD was applied. (a, b, c, d, and e) Showing the behavior responses and AChE activity of D. magna in 13.36 μg/L DM, 33.40 μg/L DM, 19.66 μg/L MT, 49.15 μg/L MT, and control, separately. AChE activity of D. magna in control at the beginning of the experiments is regarded as 100%. The solid line with round dots represented the behavior responses of D. magna. The solid line with triangles represented the AChE activity of live D. magna and the dotted line with triangle represented the AChE activity of dead D. magna once there were some individuals that died during the exposure periods. Gray shadows mean no effects and stimulation, blue shadows mean the acclimation, yellow shadows mean the (re)adjustment, and red shadows mean the toxic effect.

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