1. Meetings
  2. Scientific Committee (SC) Meetings
  3. Technical Working Group on Chub Mackerel Stock Assessment (TWG CMSA)
  4. 9th TWG CMSA meeting

9th TWG CMSA meeting

    Location
    Yokohama, Japan
    Short Name
    TWG CMSA09
    Date
    -
    Registration Due
    Meeting Papers Due
    Meeting Information File
    NPFC-2024-TWG CMSA09-MIP01 Rev.2 Meeting Information.pdf
    Meeting Report File for Public
    TWG CMSA09 Report.pdf
    1. Opening of the Meeting
    2. Adoption of Agenda
    3. Overview of the recommendations and outcomes of previous NPFC meetings relevant to chub mackerel
     
    3.1 TWG CMSA08
     
    3.2 Intersessional meetings of TWG CMSA
    4. Members fishery status and research activities
    5. Review of results of stock assessment using State-space stock assessment model (SAM)
     
    5.1 Review of Stock Assessment Protocol
     
    5.2 Review of data used for stock assessment
     
    5.3 Confirmation of setting and specification of SAM
     
    5.4 Review of stock assessment results
     
     
    5.4.1 Stock biomass, recruitment, spawning stock biomass, fishing mortalities, etc.
     
     
    5.4.2 Model diagnostics and sensitivity analysis
     
    5.5 Draft summary of stock assessment results
    6. Future projections and biological reference points
     
    6.1 Confirmation of projection methods and scenarios
     
    6.2 Review of projection results
     
    6.3 Draft of management advice based on the results of projection and biological reference points
    7. Stock assessment report
     
    7.1 Review of draft executive summary
     
     
    7.1.1 Stock status
     
     
    7.1.2 Management advice
     
     
    7.1.3 Others
     
    7.2 Review of draft stock assessment report
     
    7.3 Work assignments to finalize the report towards SC09 meeting
    8. Data collection and management
     
    8.1 Data provision templates
     
    8.2 Data inventory
     
    8.3 Update on GitHub repository and user manual
     
    8.4 Observer program
    9. Review of the Work Plan of the TWG CMSA
    10. Other matters
     
    10.1 Timeline and intersessional activities before TWG CMSA10
     
    10.2 Species summary
     
    10.3 Invited expert
     
    10.4 Election of Chair and vice-Chair
     
    10.5 Other issues
    11. Recommendations to the Scientific Committee
    12. Adoption of Meeting Report
    13. Close of the Meeting
    No documents listed
    NPFC-2024-TWG CMSA09-MIP02
    		Provisional Agenda NPFC-2024-TWG CMSA09-MIP02 Provisional Agenda_0.pdf
    NPFC-2024-TWG CMSA09-MIP03 (Rev. 2)
    		Annotated Indicative Schedule NPFC-2024-TWG CMSA09-MIP03(Rev 2) Annotated Indicative Schedule.pdf
    No documents listed
    3.1 TWG CMSA08
    TWG CMSA08 Report
    		8th TWG CMSA meeting report (click for LINK)
    3.2 Intersessional meetings of TWG CMSA
    NPFC-2024-TWG CMSA09-RP01
    		Summary of the 1st Intersessional Meeting of the Technical Working Group on Chub Mackerel Stock Assessment NPFC-2024-TWG CMSA09-RP01 TWG CMSAint01 meeting summary.pdf
    NPFC-2024-TWG CMSA09-RP02
    		Summary of the 2nd Intersessional Meeting of the Technical Working Group on Chub Mackerel Stock Assessment NPFC-2024-TWG CMSA09-RP02 TWG CMSAint02 meeting summary.pdf
    NPFC-2024-TWG CMSA09-IP03
    		Review of chub mackerel fishery in China and research activities NPFC-2024-TWG CMSA09-IP03 Review of chub mackerel fishery in China(2023).pdf
    NPFC-2024-TWG CMSA09-IP04
    		Recent fishery and stock status of chub mackerel from Japan NPFC-2024-TWG CMSA09-IP04 Recent fishery and stock status of chub mackerel from Japan.pdf
    NPFC-2024-TWG CMSA09-WP12 (Rev. 1)
    		Stock assessment based on age-structured assessment program for Chub mackerel in the North Pacific Ocean 2024 NPFC-2024-TWG CMSA09-WP12(Rev1) ASAP stock assessment for CM_Chn.docx
    5.1 Review of Stock Assessment Protocol
    No documents listed
    5.2 Review of data used for stock assessment
    NPFC-2024-TWG CMSA09-WP01
    		The data description for the base case stock assessment of chub mackerel Scomber japonicus in the northwestern Pacific Ocean NPFC-2024-TWG_CMSA09-WP01_Data_description.docx, NPFC-2024-TWG CMSA09-WP01 Input_data_base_case ppt.pdf
    NPFC-2024-TWG CMSA09-WP02
    		The data description of input data used for the sensitivity analyses of the stock assessment of chub mackerel Scomber japonicus in the northwestern Pacific Ocean NPFC-2024-TWG_CMSA09-WP02_Sensitivity_data.docx, NPFC-2024-TWG CMSA09-WP02 Input_data_sensitivity ppt.pdf
    NPFC-2024-TWG CMSA09-WP06
    		Revised Standardized Abundance Indices for Ages 0 and 1 Fish of Chub Mackerel from Northwest Pacific Autumn Surveys up to 2023 NPFC-2024-TWG CMSA09-WP06 Revised_CPUE_standardization_autumn_Jpn.docx
    NPFC-2024-TWG CMSA09-WP07
    		Standardizing monthly egg survey data as an abundance index for spawning stock biomass of chub mackerel in the Northwest Pacific NPFC-2024-TWG CMSA09-WP07 EggSurvey_updated_Jpn.docx
    NPFC-2024-TWG CMSA09-WP11
    		Standardized CPUE of Chub mackerel (Scomber japonicus) caught by the Russia’s trawls fishery up to 2023 NPFC-2024-TWG CMSA09-WP11 CM_CPUE_standardization_2023_Rus.docx
    NPFC-2024-TWG CMSA09-WP13 (Rev. 1)
    		Standardized CPUE of Chub mackerel (Scomber japonicus) caught by the China’s lighting purse seine fishery up to 2022 NPFC-2024-TWG CMSA09-WP13(Rev1) Standardized CPUE of CM up to 2022_Chn.docx
    5.3 Confirmation of setting and specification of SAM
    No documents listed
    5.4 Review of stock assessment results
    NPFC-2024-TWG CMSA09-WP04
    		Sensitivity of the chub mackerel stock assessment in 2024 to observation and model uncertainty in the Northwest Pacific Ocean NPFC-2024-TWG CMSA09-WP04 SAM_sensitivity.docx
    NPFC-2024-TWG CMSA09-WP03 (Rev.1)
    		Base case stock assessment for chub mackerel in Northwest Pacific Ocean in 2024 NPFC-2024-TWG CMSA09-WP03(Rev 1) SAM_basecase_0.docx
    5.4.1 Stock biomass, recruitment, spawning stock biomass, fishing mortalities, etc.
    No documents listed
    5.4.2 Model diagnostics and sensitivity analysis
    No documents listed
    5.5 Draft summary of stock assessment results
    No documents listed
    NPFC-2024-TWG CMSA09-WP05
    		Biological reference points and future projections with the results of stock assessment for the Pacific chub mackerel NPFC-2024-TWG CMSA09-WP05 Future_projection.docx
    6.1 Confirmation of projection methods and scenarios
    No documents listed
    6.2 Review of projection results
    No documents listed
    6.3 Draft of management advice based on the results of projection and biological reference points
    No documents listed
    No documents listed
    7.1 Review of draft executive summary
    No documents listed
    7.1.1 Stock status
    No documents listed
    7.1.2 Management advice
    No documents listed
    7.1.3 Others
    No documents listed
    7.2 Review of draft stock assessment report
    No documents listed
    7.3 Work assignments to finalize the report towards SC09 meeting
    No documents listed
    No documents listed
    8.1 Data provision templates
    NPFC-2023-SC08-IP13 (Rev 1)
    		Biological Data Provision Templates (click for LINK)
    8.2 Data inventory
    NPFC-2024-TWG CMSA09-WP10
    		Scientific data management system: data inventory NPFC-2024-TWG CMSA09-WP10 Data Inventory.docx, NPFC-2024-TWG CMSA09-WP10 Data inventory table.xlsx
    8.3 Update on GitHub repository and user manual
    NPFC-2024-TWG CMSA09-IP02
    		Update on GitHub Repository and User Manual NPFC-2024-TWG CMSA09-IP02 Git_Repository_Update and User_Manual.pdf
    8.4 Observer program
    NPFC-2024-SC09-WP02 (Rev. 1)
    		Report on the existing observer programs of NPFC Members and those of other RFMOs
    NPFC-2024-TWG CMSA09-WP08 (Rev. 2)
    		TWG CMSA Work Plan, 2024-2028 NPFC-2024-TWG CMSA09-WP08(Rev2) TWG CMSA Work Plan.docx
    NPFC-2024-SC09-WP01 (Rev. 1)
    		Performance Review Recommendations update NPFC-2024-SC09-WP01(Rev1) Performance Review Recommendations update.xlsx
    No documents listed
    10.1 Timeline and intersessional activities before TWG CMSA10
    No documents listed
    10.2 Species summary
    NPFC-2024-TWG CMSA09-WP09 (Rev. 2)
    		Species Summary for Chub Mackerel NPFC-2024-TWG CMSA09-WP09(Rev2) Chub Mackerel species summary.docx
    10.3 Invited expert
    No documents listed
    10.4 Election of Chair and vice-Chair
    No documents listed
    10.5 Other issues
    NPFC-2024-TWG CMSA09-IP01
    		Effects of Kuroshio Current Variability and Pacific Decadal Oscillation on Recent Decline in Chub Mackerel (Scomber japonicus) Catch in the Northwestern Pacific in the 2020s NPFC-2024-TWG CMSA09-IP01 NPFC_CM_Decrease_2024.pdf
    No documents listed
    No documents listed
    No documents listed
    Document Number Title File Created
    NPFC-2024-TWG CMSA09-MIP02 Provisional Agenda NPFC-2024-TWG CMSA09-MIP02 Provisional Agenda_0.pdf
    NPFC-2024-TWG CMSA09-MIP03 (Rev. 2) Annotated Indicative Schedule NPFC-2024-TWG CMSA09-MIP03(Rev 2) Annotated Indicative Schedule.pdf
    NPFC-2024-TWG CMSA09-WP01 The data description for the base case stock assessment of chub mackerel Scomber japonicus in the northwestern Pacific Ocean NPFC-2024-TWG_CMSA09-WP01_Data_description.docx, NPFC-2024-TWG CMSA09-WP01 Input_data_base_case ppt.pdf
    NPFC-2024-SC09-WP01 (Rev. 1) Performance Review Recommendations update NPFC-2024-SC09-WP01(Rev1) Performance Review Recommendations update.xlsx
    NPFC-2024-TWG CMSA09-WP02 The data description of input data used for the sensitivity analyses of the stock assessment of chub mackerel Scomber japonicus in the northwestern Pacific Ocean NPFC-2024-TWG_CMSA09-WP02_Sensitivity_data.docx, NPFC-2024-TWG CMSA09-WP02 Input_data_sensitivity ppt.pdf
    NPFC-2024-SC09-WP02 (Rev. 1) Report on the existing observer programs of NPFC Members and those of other RFMOs
    NPFC-2024-TWG CMSA09-WP03 (Rev.1) Base case stock assessment for chub mackerel in Northwest Pacific Ocean in 2024 NPFC-2024-TWG CMSA09-WP03(Rev 1) SAM_basecase_0.docx
    NPFC-2024-TWG CMSA09-WP04 Sensitivity of the chub mackerel stock assessment in 2024 to observation and model uncertainty in the Northwest Pacific Ocean NPFC-2024-TWG CMSA09-WP04 SAM_sensitivity.docx
    NPFC-2024-TWG CMSA09-WP05 Biological reference points and future projections with the results of stock assessment for the Pacific chub mackerel NPFC-2024-TWG CMSA09-WP05 Future_projection.docx
    NPFC-2024-TWG CMSA09-WP06 Revised Standardized Abundance Indices for Ages 0 and 1 Fish of Chub Mackerel from Northwest Pacific Autumn Surveys up to 2023 NPFC-2024-TWG CMSA09-WP06 Revised_CPUE_standardization_autumn_Jpn.docx
    NPFC-2024-TWG CMSA09-WP07 Standardizing monthly egg survey data as an abundance index for spawning stock biomass of chub mackerel in the Northwest Pacific NPFC-2024-TWG CMSA09-WP07 EggSurvey_updated_Jpn.docx
    NPFC-2024-TWG CMSA09-WP08 (Rev. 2) TWG CMSA Work Plan, 2024-2028 NPFC-2024-TWG CMSA09-WP08(Rev2) TWG CMSA Work Plan.docx
    NPFC-2024-TWG CMSA09-WP09 (Rev. 2) Species Summary for Chub Mackerel NPFC-2024-TWG CMSA09-WP09(Rev2) Chub Mackerel species summary.docx
    NPFC-2024-TWG CMSA09-WP10 Scientific data management system: data inventory NPFC-2024-TWG CMSA09-WP10 Data Inventory.docx, NPFC-2024-TWG CMSA09-WP10 Data inventory table.xlsx
    NPFC-2024-TWG CMSA09-WP11 Standardized CPUE of Chub mackerel (Scomber japonicus) caught by the Russia’s trawls fishery up to 2023 NPFC-2024-TWG CMSA09-WP11 CM_CPUE_standardization_2023_Rus.docx
    NPFC-2024-TWG CMSA09-WP12 (Rev. 1) Stock assessment based on age-structured assessment program for Chub mackerel in the North Pacific Ocean 2024 NPFC-2024-TWG CMSA09-WP12(Rev1) ASAP stock assessment for CM_Chn.docx
    NPFC-2024-TWG CMSA09-WP13 (Rev. 1) Standardized CPUE of Chub mackerel (Scomber japonicus) caught by the China’s lighting purse seine fishery up to 2022 NPFC-2024-TWG CMSA09-WP13(Rev1) Standardized CPUE of CM up to 2022_Chn.docx
    NPFC-2024-TWG CMSA09-IP01 Effects of Kuroshio Current Variability and Pacific Decadal Oscillation on Recent Decline in Chub Mackerel (Scomber japonicus) Catch in the Northwestern Pacific in the 2020s NPFC-2024-TWG CMSA09-IP01 NPFC_CM_Decrease_2024.pdf
    NPFC-2024-TWG CMSA09-IP02 Update on GitHub Repository and User Manual NPFC-2024-TWG CMSA09-IP02 Git_Repository_Update and User_Manual.pdf
    NPFC-2024-TWG CMSA09-IP03 Review of chub mackerel fishery in China and research activities NPFC-2024-TWG CMSA09-IP03 Review of chub mackerel fishery in China(2023).pdf
    NPFC-2024-TWG CMSA09-IP04 Recent fishery and stock status of chub mackerel from Japan NPFC-2024-TWG CMSA09-IP04 Recent fishery and stock status of chub mackerel from Japan.pdf
    NPFC-2023-SC08-IP13 (Rev 1) Biological Data Provision Templates (click for LINK)
    TWG CMSA08 Report 8th TWG CMSA meeting report (click for LINK)
    NPFC-2024-TWG CMSA09-RP01 Summary of the 1st Intersessional Meeting of the Technical Working Group on Chub Mackerel Stock Assessment NPFC-2024-TWG CMSA09-RP01 TWG CMSAint01 meeting summary.pdf
    NPFC-2024-TWG CMSA09-RP02 Summary of the 2nd Intersessional Meeting of the Technical Working Group on Chub Mackerel Stock Assessment NPFC-2024-TWG CMSA09-RP02 TWG CMSAint02 meeting summary.pdf