2012,November 5th to 8th, Inland and Estuarine Fisheriesacoustics Applications Symposium and Chinese fisheries acoustics Fourth Symposium held in the Yangtze River Fisheries Research China Aquatic Science Research institute. The conference was hosted by the Department offishery resources protection and utilization of the Commission and the world sturgeon conservation society,relying on Yu Changjiang's Agriculture Ministry of freshwater biodiversity conservation Key Laboratory of the Yellow Sea Fisheries Research Institute jointly sponsored.The seminar within the continental and Estuarine Fisheriesacoustics application as the main research content.Zhejiang University Professor Han Jun, Dalian OceanUniversity professor Tang Yong and the the Yellow SeaFisheries Research Institute researcher Zhao Xianyong did a problem to be "identification sonar applications in fisheries", "small acoustic marker tracking technology and application" and "fisheries acoustics in inland waterenvironment problems in the application of" theme report.Our company during meetings, show all kinds of fish tags,Canada Vemco acoustic marking products, Seamor underwater robot, and fish sonar and Echoview software and other products.