A study on the risk of Pomacea canaliculate and Angiostrongylus cantonensis in Pudong New Area,Shanghai
WANG Jierui
LU Qi
LU Xinchen
YU Siyu
LIU Hanzhao
Abstract：Objective To understand the breeding situation of Pomacea canaliculate in Pudong New Area,Shanghai,so as to provide scientific basis for the prevention and control of P.canaliculate.Methods Environmental monitoring of P.canaliculate monitoring sites was conducted by adopting the natural walking method.Samples and eggs were collected for laboratory testing.Preliminary screening was carried out by using lung-microscopy and tissue homogenization for reexamination in detecting Angiostrongylus cantonensis in the P.canaliculate.The residents'awareness of information about P.canaliculate was collected through a survey questionnaire.The Chi-square test was used to analyze the questionnaire results.Results In 2023,there were a total of 111 monitoring sites in Pudong New Area,Shanghai.The type of living environment of P.canaliculate was mostly rivers(72.97%).A total of 48 P.canaliculate samples were tested in this study.There were 33 females(68.75%)with an average length of(4.83±1.39)cm.There were 15 males(31.25%)with an average length of(4.69±0.83)cm.56 egg samples from P.canaliculate were tested.The average length of the egg mass was(3.72±1.16)cm,and the average number of single egg grains was(252.59±95.53)eggs.The laboratory test showed that no A.cantonensis was found in the 48 P.canaliculate samples tested.Altogether,430 valid questionnaires were collected.26.74%residents were unable to distinguish P.canaliculate,31.86%couldn't distinguish P.canaliculate eggs,and 41.16%residents were unsure whether P.canaliculate and eggs can transmit diseases.Chi-square test showed that there were significant differences in the awareness rate of information on P.canaliculate of different gender(χ2=8.879,P＜0.05)and different cultural levels(χ2=8.207,P＜0.05).Conclusion No P.canaliculate infected with A.cantonensis has been found in Pudong New Area,Shanghai.However,the proliferation of P.canaliculate is relatively serious.Residents have the act of catching and eating P.canaliculate,and have a low knowledge of P.canaliculate.Therefore,we need to do a good job in inspecting and eliminating P.canaliculate survey and molluscaciding,and strengthen residents'publicity.
Keywords：Pomacea canaliculateAngiostrongylus cantonensisbreedawareness rateegg mass
Publication Date：2025-04-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 163-166 )