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28 May-4 June 2008 Shimizu, Japan
Working Group Report
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Report of the Pacific bluefin tuna Working Group Workshop Download PDF

Working Group Working Papers
No. Title Authors and Contact
01 Pacific bluefin tuna quarterly catch updates. K. Oshima, M. Abe, M. Kai, I. Yamasaki, Y. Takeuchi, K. Yokawa, and S.-D. Hwang
02 Data set on Stock Synthesis 2 for Pacific bluefin tuna, Thunnus orientalis. M. Abe, K. Oshima, M. Kai, M. Ichinokawa, H. Yamada, Y. Takeuchi, and K. Yokawa
03 Length frequency of Pacific bluefin tuna caught by Japanese troll and set net fisheries during 1980's and possible effects for stock estimates. M. Ichinokawa
04 Annual catches by gears of Pacific bluefin tuna before 1952 in Japan and adjacent areas by gears. F. Muto, Y. Takeuchi, and K. Yokawa
05 Correction of the standardized CPUE of Pacific bluefin tuna caught by Japanese offshore and distant-water longliners. K. Yokawa
06 Estimation of effective sample size for landing data of Japanese purse seine in Sakai-Minato. M. Kanaiwa, A. Shibano, T. Shimura, R. Uji, and Y. Takeuchi
07 Evaluation and recommendation of sampling method for Purse seine by using landing data in Sakai-Minato. A. Shibano, M. Kanaiwa, T. Shimura, R. Uji, and Y. Takeuchi
08 Age and growth of Pacific bluefin tuna, Thunnus orientalis, validated by the sectioned otolith ring counts. T. Shimose, M. Kai, T. Tanabe, K.-S. Chen, C.-C. Hsu, F. Muto, and I. Yamasaki
09 A review of reproductive biology of Pacific bluefin tuna Thunnus orientaris with description of some problem for further study. T. Tanabe, K. Yokawa, N. Miyabe, H. Honda and Y. Takeuchi
10 Reconsideration to adult natural mortality of Pacific bluefin tuna in the presence of new information of age and growth. Y. Takeuchi
11 Withdrawn
12 Sensitivity analysis of stock assessment for Pacific bluefin tuna using Stock Synthesis 2. M. Kai
13 Comparison of von Bertalanffy growth function from otolith sections with observed length frequencies from various fisheries. M. Ichinokawa
14 Withdrawn  
15 Future projections from the current stock status estimated by Stock Synthesis II for Pacific bluefin tuna. M. Ichinokawa , Y. Takeuchi, R. Conser, K. Piner, and M. Dreyfus
16 Basic results of analysis of sexed size data of large sized Pacific bluefin tuna. K. Yokawa
17 Stock assessment of Pacific bluefin tuna -Specification of modeling and base case results-. Y. Takeuchi, M. Ichinokawa, M. Kai, K. Oshima, M. Abe, K. Yokawa, R. Conser, K. Piner, D. Silva , H.-H. Lee, and M. Dreyfus
Info/01 Contributions of different spawning seasons and areas to the stock of Pacific bluefin tuna, Thunnus orientalis, based on analyses of otolith daily increments and catch-at-length data. T. Itoh