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6-13 January 2011 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 Exploration of a hybrid stock synthesis-VPA model of Pacific bluefin tuna to distinguish between trends in recruitment and changes in fishing intensity on young fish. (Click here to see the supplement.) A. MacCall and S. Teo
02 Updated estimates of natural mortality rate of age 0 Pacific bluefin tuna by using conventional tagging data. S. Iwata, M. Ichinokawa, and Y. Takeuchi
03 Withdrawn  
04 Estimation of length distribution for landing data of Pacific bluefin tuna in Sakai-minato port. M. Kanaiwa, A. Shibano, and Y. Takeuchi
05 Estimation of the length and age compositions of Pacific bluefin tuna caught by Japanese set-net fishery. M. Kai
06 Introduction of a spatially-structured model of Pacific bluefin tuna. K. Piner, H.-H. Lee, I. Taylor, A. Aires-da-Silva, and S. Teo
07 Approaches for estimation of catch at age of young Pacific bluefin tuna caught by Japanese small purse seine fisheries. K. Oshima and Y. Takeuchi
08 Natural mortality of adult Pacific bluefin tuna estimated with Pauly's equation and its confidence intervals. K. Oshima
09 Preliminary analysis of length frequency and amount of catch data for Pacific bluefin tuna (Thunnus orientalis) landed by Tuna Purse Seine fleet (Fleet 3) in different sea area. M. Abe and Y. Takeuchi
10 Sensitivity of estimated spawning biomass to natural mortality assumptions in Pacific bluefin tuna assessments. S. Teo
11 Estimation of the sex specific growth parameters for Pacific bluefin tuna Thunnus orientalis. T. Shimose and T. Tanabe
12 Annual change of abundance of the Pacific bluefin tuna larvae from 2007 to 2010 around the Ryukyu archipelago. N. Suzuki, W. Doi, H. Ashida, T. Tanabe, and Y. Aonuma
13 Re-consideration of assumptions applied to Japanese longline fishery in the stock assessment of Pacific bluefin tuna. M. Ichinokawa
14 Evaluation of uncertainties in terminal year's parameters estimated from SS in the Pacific bluefin tuna assessment. M. Ichinokawa
15 Update of Pacific bluefin tuna catch in Korea waters. J.-T. Yoo, Z. G. Kim, K. Choi, S. Kang, J. B. Lee, S. IL Lee, D.-N. Kim , K.-J. Seok, D.-Y. Moon, and D.-W. Lee
Oral only
Updated estimates of natural mortality and seasonal movement rates from a spatially-structured mark-recapture model for PBFT. R. Whitlock
Mark-recapture experiments of Juvenile Pacific Bluefin Tuna in Tosa Bay. Y. Niiya, S. Iwata, and K. Oshima
Evaluation of spawning history of fish from ovarian histology. A. Shimizu
Review of the Pacific bluefin tuna necropsy reports dating from 1998 through 2010 from the Tuna Research and Conservation Center and Monterey Bay Aquarium. C. Farwell
Skip spawning and spawning frequency of Pacific bluefin tuna around Japan. S. Tanaka
Summary of EPO data. A. Aires-da-Silva
Hockey Stick SRR in SS. A. MacCall and Y. Takeuchi