| 英文摘要 |
The goal of this study is to analyze the total catch, effort and its distruibtion, catch distribution and length distribution of Indian bigeye and yellowfin tuna by Taiwanese longline fishery and observer database. Besides, this study will still monitor the effect of piracy on the Taiwanese longline activity in Indian Ocean. Integral analysis of historical researches on CPUE standardization of Indian Bigeye and Yellowfin tuna based on Taiwanese longline fishery data is the main research task in this study. The result of this study will be expected to apply the relevant information to facilitate IOTC to fulfill the management of Indian yellowfin tuna. |