Abstract:

To comprehensively understand and compare the research trends in the field of Pomacea canaliculata worldwide, based on the CNKI database and Web of Science (WOS) database, Citespace knowledge graph visualization and analysis software was used to analyze various aspects of P. canaliculata research, including the volume of research publications, research teams, research institutions, research content, and hotspots evolution. The results showed that: (1) the annual quantity of domestic and overseas articles about P. canaliculata presented a continuous growth trend. It went through three phases in the CNKI database: a slow increase from 1985 to 2005, rapid development from 2006 to 2012, and a fluctuation stability phase from 2013 to 2022. In contrast, P. canaliculata research in the WOS database commenced later, but experienced a surge in the number of publications after 2009, showing a wave-like growth. (2) The cooperative network of domestic and foreign authors and research institutions had been formed, and its distributional characteristics were related to the origin and invasion status of P. canaliculata. The distribution of domestic research institutions and teams of P. canaliculata was mainly concentrated in universities and research institutes in south of the middle and lower reaches of the Yangtze River. The distribution of foreign institutions and teams was mainly concentrated in Argentina, Brazil, the United States and other countries. (3) Differences existed in P. canaliculata research emphasis at home and abroad. Additionally, the content and direction of domestic research on P. canaliculata in the CNKI and WOS databases also differed. In the CNKI database, it primarily focused on angiostrongyliasis and the prevention and management of Amazonian snail; however, P. canaliculata research in the WOS database primarily revolved around the effects of climate change, heavy metals, and other external environments. (4) Current areas of domestic research on P. canaliculata were centered on invasion mechanisms, physiological and biochemical changes related to resistance, and genetics, and foreign research primarily concentrated on biodiversity and phylogeny. It was suggested that domestic research teams should strengthen inter regional cooperation and deepen the research on the biological characteristics and genetic structure of P. canaliculata, so as to better understand their habits, reproduction modes and adaptive capacity, and thus to formulate more effective prevention and control strategies.

Key words: Pomacea canaliculata, Citespace, research hotspots, bibliometrics, knowledge map