Study of predation avoidance mechanism of benthic animals through the learning for the smell of invaded predators in lake

为了研究手拟鱼幼虫对外来鱼类气味的捕食回避行为，并确定其是否被遗传给下一代，在实验室进行了一些实验。结果表明，在仅暴露于外来鱼腥水环境中的kiichironomus幼虫对鱼腥水无捕食回避反应。另一方面，将同种幼虫的血水和鱼腥味水分别饲喂kiiensis幼虫时，当幼虫暴露于鱼腥味水时，幼虫表现出明显的捕食者躲避行为，搜索摄食时间缩短。然而，尚不清楚这种反应是否会遗传给下一代。

To investigate the predation avoidance behavior of chironomid larvae to the smell of exotic fish and to make sure the larval behavior whether taken over to the next generation、 some experiments were conducted in laboratory. As a result、 In case of Chironomus kiiensis larvae grew up in an environment that was exposed to the exotic fish smell water only、 the larvae showed no predation avoidance response to the fish smell water. On the other hand、 in case of C. kiiensis larvae were fed with blood water of same species larvae and the fish smell water、 when the larvae were expused to the fish smell water、 the larvae showed a predator avoidance behavior clearly which the search feeding time was shortened. However、 it was unknown that the reaction is either carried over to the next generations.