Exp. I: cercarial emergence from periwinkles

Cercarial emergence was assessed by counting all cercariae that emerged from single periwinkles exposed to the different treatments. Periwinkles were collected in Årøsund,...本研究通过计数经不同处理的单只滨螺（Periwinkle）所逸出的全部尾蚴（Cercaria），对尾蚴逸出情况进行评估。实验所用滨螺采集自奥勒松德（Årøsund）……