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ISC/25/ALBWG-2

27 Oct - 2 Nov 2025 Yokohama, Japan

Working Group Working Papers

#01

  • Updated North Pacific albacore catch by Japanese fisheries.
  • Y. Tsuda, N. Matsubara, Y. Aoki, H. Ijima, and K. Sato
  • tsuda_yuichi58_at_fra.go.jp

#02

  • Updated the size data for North Pacific albacore tuna from Japanese fisheries for the 2026 stock assessment.
  • Y. Tsuda, Y. Aoki, H. Ijima, and N. Matsubara
  • tsuda_yuichi58_at_fra.go.jp

#03

  • A Mixture model for defining fleet units from Japanese longline logbook data for North Pacific Albacore tuna (Thunnus alalunga).
  • H. Ijima and Y. Tsuda
  • ijima_hirotaka69_at_fra.go.jp

#04

  • Evaluation of size data sets and applicability of mixture models in the Japanese pole-and-line fishery.
  • H. Ijima and Y. Tsuda
  • ijima_hirotaka69_at_fra.go.jp

#05

  • Implementation and evaluation of the mixture model approach for North Pacific albacore stock assessment.
  • H. Ijima and Y. Tsuda
  • ijima_hirotaka69_at_fra.go.jp

#06

  • Updated Standardized CPUE for North Pacific Albacore by Japanese Longline by using INLA.
  • N. Matsubara, H. Ijima, and Y. Tsuda
  • matsubara_naoto84_at_fra.go.jp

#07

  • Standardized CPUE for North Pacific Albacore by Japanese Longline.
  • N. Matsubara, H. Xu, M. Nishimoto, Y. Aoki, H. Ijima, and Y. Tsuda
  • matsubara_naoto84_at_fra.go.jp

#08

  • Spatiotemporal modelling for size-specific CPUE standardization of albacore tuna in the north Pacific Ocean caught by Taiwanese longline fisheries.
  • Z.-W. Yeh and Y.-J. Chang
  • yjchang_at_ntu.edu.tw

#09

  • RPreliminary catch and size composition time series of the U.S. and Mexico surface fishery for the 2026 north Pacific albacore tuna assessment.
  • P. Kuriyama and S. Teo
  • peter.kuriyama_at_noaa.gov

#10

  • Preliminary catch and size composition time series of the U.S. pelagic longline fleets for the 2026 north Pacific albacore tuna assessment.
  • P. Kuriyama and S. Teo
  • peter.kuriyama_at_noaa.gov

#11

  • A Summary of North Pacific Albacore Tuna Fishery Data Reported by Non-ISC Countries. Sarah Hawkshaw.
  • S. Hawkshaw
  • Sarah.Hawkshaw_at_dfo-mpo.gc.ca

#12

  • Updated sex composition data for biological samples of North Pacific albacore tuna from Japan.
  • N. Yokoyama, Y. Hongo, Y. Nakamura, M. Yasuike, N. Matsubara and Y. Tsuda
  • Yokoyama_norihiko09_at_fra.go.jp

Presentations

#01

  • Catch and length information of north Pacific albacore by Taiwanese fleets.
  • Z.-W. Yeh and Y.-J. Chang
  • yjchang_at_ntu.edu.tw

#02

  • Summary of Canadian albacore tuna fisheries data.
  • S. Hawkshaw
  • Sarah.Hawkshaw_at_dfo-mpo.gc.ca

#03

  • Re-Analysis of the aging data from Japan.
  • Y. Tsuda and N. Yokoyama
  • tsuda_yuichi58_at_fra.go.jp

#04

  • Preliminary Update of 2023 North Pacific Albacore Base Case Model.
  • S. Teo, P. Kuriyama, M. Craig, O. Snodgrass, Y. Tsuda, N. Matsubara, Y.-J. Chang, Z.-W. Yeh, and S. Hawkshaw
  • Sarah.Hawkshaw_at_dfo-mpo.gc.ca