Core Viewpoint - The article discusses the introduction of fish species in Foshan's parks as a biological method to control mosquito populations and prevent the spread of diseases like Chikungunya fever [1][2]. Group 1: Mosquito Control Initiative - Foshan's Chancheng District has released a total of 5,200 fish into local parks, including 4,000 silver carp and 200 Lali Maozu bass, to reduce mosquito breeding [1]. - The initiative aims to lower the density of mosquito larvae by utilizing fish that feed on mosquito eggs and larvae, thereby interrupting the transmission chain of mosquito-borne diseases [1][2]. Group 2: Species Information - The fish species introduced are local varieties, with the Lali Maozu bass being a common ornamental fish, unlike the invasive "mosquito fish" which poses ecological threats [2]. - "Mosquito fish," originally from Mexico and the USA, is known for its aggressive nature and high reproductive rate, making it one of the top 100 invasive species globally [2]. Group 3: Monitoring and Evaluation - Local authorities will continuously monitor and evaluate the ecological impact and effectiveness of the introduced fish species in controlling mosquito populations [2].