Tracking non-native animal species here
It was reported that an NUS study has found that a high number of snails and clams – a total of 59 species - enter Singapore via ornamental pet trade. The study was conducted by Ms NG Ting Hui as part of her doctoral thesis at the Department of Biological Sciences at the NUS Faculty of Science. It was recently published in science journal PLoS One.
Source : The Straits Times (Friday, 4 November 2016)