This project is aiming to efficiently develop dolphin fish resources in the Eastern Taiwanby understanding precisely the environment and habitation information in order topromote the fishing industry within the structure of international fishing responsibility.The critical items are: １. Sampling and measuring the length of dolphin fish in Hsin-Kang fish market; ２. Collect catches of dolphin fish; ３. Standering cpue of dolphin fishaccording to classification of fishing boat and fishing gear. In the end of the project weexpect to establish a complete data bank for the dolphin fish resources in the EasternTaiwan, understand precisely the historical trend and current situation of dolphinfishfishing, and establish the TAC with the systematically collected and analyzed data.