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15-22 April 2010 Hakodate, Japan
Report of the Billfish Working Group Workshop

Working Group Working Papers


  • Age structured stock assessment of North Pacific swordfish (Xiphias gladius) with Stock Synthesis under a two stock scenario.
  • Courtney, D. and K. Piner


  • Update of the Production Model Assessment of the Eastern Pacific swordfish Stock (Xiphias gladius) in 2010.
  • Brodziak, J.


  • An update of stock assessment or North Pacific Swordfish based on two-stock scenario using age-structured models.
  • Sun, C.-L., N.-J. Su and S.-Z. Yeh


  • Oceanographic features in the vicinity of a North Pacific swordfish stock boundary.
  • Courtney, D. and J. Brodziak


  • Additional works of the preliminary analysis on possible stock boundary of striped marlin in the North Pacific using fishery data of Japanese longliners.
  • Hosono, T., M. Ichinokawa and K. Yokawa


  • An investigation of patterns in Japanese longline CPUE of striped marlin (Tetrapturus audax) in relation to a stock boundary of swordfish (Xiphias gladius) in the North Pacific.
  • Brodziak, J.


  • The role of BRP in the fish stock assessment - lessons from the history of ICES.
  • Yokawa, K. and A. Kimoto


  • Review of biological reference points with specific recommendations for North Pacific billfishes.
  • Piner, K. and H.-H. Lee


  • Effective samples size of swordfish (Xiphias gladius) length measurements in the Hawaii-based longline fishery, 2005, for use in stock assessment.
  • Shibano, A., M. Kanaiwa, K. Yokawa, Y. Takeuchi and D. Courtney


  • The evaluation of removing hook adjacent floats for catch amount.
  • Kanaiwa, M., K. Bigelow and K. Yokawa


  • Does the market value freshness? Updated and expanded estimation of preliminary evidence from a pelagic longline fishery.
  • Ito, K., G. Ishimura, K. Yokawa and K. Ishida