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Assessment of the Sablefish stock in Alaska
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Assessment of the Sablefish stock in Alaska
Details:
  • Alternative Title:
    GOA Chapter 3
  • Corporate Authors:
    North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
  • Description:
    Relative to last year’s assessment, we made the following substantive changes in the current assessment. Changes in the input data: New data included in the assessment model were relative abundance and length data from the 2016 longline survey, relative abundance and length data from the 2015 longline fishery, length data from the 2015 trawl fisheries, age data from the 2015 longline survey and 2015 fixed gear fishery, updated catch for 2015, and projected 2016 - 2018 catches. In addition to these usual new data updates, the following substantive new changes were made to the data inputs: 1) New analytical variance calculations for the domestic longline survey abundance index 2) New area sizes for the domestic longline survey abundance index 3) Domestic longline survey estimates corrected for sperm whale depredation 4) Estimates of killer and sperm whale depredation in the fishery

  • Keywords:
  • Document Type:
    Stock Assessment
  • Place as Subject:
    Alaska, Gulf of (Alaska)
  • Collection(s):
    National Marine Fisheries Service (NMFS)
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
    1. Assessment of the squid stock complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Squids in the Gulf of Alaska (GOA) are managed as a single stock complex comprising approximately 15 species. Harvest recommendations are based on an historical catch approach setting OFL equal to maximum historical catch during 1997 - 2007 and ABC e...
      File Type:
      Filetype[PDF - 230.74 KB]
    2. Forage species report for the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The format of this report varies according to new developments in forage fish research and data availability. The 2014 report contains extensive information regarding the distribution of different forage species in the GOA, which is not repeated in t...
      File Type:
      Filetype[PDF - 1.18 MB]
    3. Assessment of the Rex Sole Stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Rex sole (Glyptocephalus zachirus) are assessed on a biennial stock assessment schedule to coincide with the availability of new survey data. For Gulf of Alaska rex sole in alternate (even) years we present an executive summary to recommend harvest l...
      File Type:
      Filetype[PDF - 112.27 KB]
    4. Assessment of the Rougheye and Blackspotted rockfish stock complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Rockfish are assessed on a biennial stock assessment schedule to coincide with the availability of new trawl survey data. For Gulf of Alaska rockfish in off-cycle (even) years, we present an executive summary to recommend harvest levels for the next ...
      File Type:
      Filetype[PDF - 302.81 KB]
    5. Assessment of the Other Rockfish stock complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The Other Rockfish (OR) complex in the Gulf of Alaska (GOA) is assessed on a biennial stock assessment schedule to coincide with the availability of new trawl survey biomass estimates. In alternate (even) years we present an executive summary to reco...
      File Type:
      Filetype[PDF - 123.54 KB]
    6. Assessment of the northern and southern rock sole (Lepidopsetta polyxystra and bilineata) stocks in the Gulf of Alaska for 2017
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Assessment for northern and southern rock sole which are part of the shallow water flatfish complex has been moved to a biennial schedule to coincide with the expected receipt of new survey data. Usually, on alternate (even) years we will present an ...
      File Type:
      Filetype[PDF - 146.71 KB]
    7. Assessment of the Walleye Pollock Stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The base model projection of female spawning biomass in 2017 is 363,800 t, which is 54.5% of unfished spawning biomass (based on average post-1977 recruitment) and above B40% (267,000 t), thereby placing GOA pollock in sub-tier “a” of Tier 3. The...
      File Type:
      Filetype[PDF - 3.18 MB]
    8. Assessment of the Shortraker Rockfish stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Rockfish are assessed on a biennial stock assessment schedule to coincide with the availability of new survey data. For Gulf of Alaska (GOA) rockfish in alternate (even) years we present an executive summary to recommend harvest levels for the next t...
      File Type:
      Filetype[PDF - 1.29 MB]
    9. Assessment of the sculpin stock complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The Gulf of Alaska (GOA) sculpin complex is managed in Tier 5 and is assessed on a biennial basis to coincide with the biennial GOA groundfish trawl survey. These surveys occur in odd years, and for these years a full assessment of the sculpin stock ...
      File Type:
      Filetype[PDF - 210.61 KB]
    10. Assessment of the Arrowtooth Flounder Stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The Gulf of Alaska (GOA) arrowtooth flounder (Atheresthes stomias) stock is managed in Tier 3a and is assessed on a biennial basis to coincide with the annual GOA groundfish trawl survey. These surveys occur in odd years, and for these years a full a...
      File Type:
      Filetype[PDF - 101.09 KB]
    11. Assessment of the Northern Rockfish stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Rockfish are assessed on a biennial stock assessment schedule to coincide with the availability of new survey data. For Gulf of Alaska rockfish in alternate (even) years we present an executive summary to recommend harvest levels for the next two yea...
      File Type:
      Filetype[PDF - 114.36 KB]
    12. Assessment of the Deepwater Flatfish Stock Complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The Gulf of Alaska deepwater flatfish complex (consisting of Dover sole, Greenland turbot, and deepsea sole) is assessed on a biennial stock assessment schedule to coincide with the availability of new survey data. For Gulf of Alaska deepwater flatfi...
      File Type:
      Filetype[PDF - 213.13 KB]
    13. Assessment of the Demersal Shelf Rockfish Stock Complex in the Southeast Outside District of the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The demersal shelf rockfish (DSR) complex (yelloweye, quillback, copper, rosethorn, canary, China, and tiger rockfish) is assessed on a biennial cycle, with a full stock assessment typically conducted in odd calendar years. Prior to 2010 yelloweye ro...
      File Type:
      Filetype[PDF - 4.24 MB]
    14. Assessment of the Pacific cod stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      There was substantial changes in the modeling approach applied in the authors’ preferred model for this year. The approach taken with the new model involves a number of simplifications compared to the relatively complex models presented in recent y...
      File Type:
      Filetype[PDF - 10.23 MB]
    15. Assessment of the Shallow Water Flatfish complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Assessment for the shallow water flatfish complex has been moved to a biennial schedule to coincide with the expected receipt of new survey data. Usually, on alternate (even) years we will present an executive summary with last year’s key assessmen...
      File Type:
      Filetype[PDF - 287.34 KB]
    16. Assessment of the Pacific ocean perch stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Rockfish are assessed on a biennial stock assessment schedule to coincide with the availability of new survey data. For Gulf of Alaska rockfish in alternate (even) years we present an executive summary to recommend harvest levels for the next two yea...
      File Type:
      Filetype[PDF - 148.21 KB]
    17. Assessment of the Octopus Stock Complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The Gulf of Alaska (GOA) octopus complex is assessed on a biennial stock assessment schedule with full assessments provided in odd years. In even years we present an executive summary to recommend harvest levels for the next two years. The last full ...
      File Type:
      Filetype[PDF - 440.20 KB]
    18. Assessment of the Thornyhead stock complex in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Rockfish are assessed on a biennial stock assessment schedule to coincide with the availability of new survey data. For Gulf of Alaska (GOA) thornyheads in off-cycle (even) years, we present an executive summary to recommend harvest levels for the ne...
      File Type:
      Filetype[PDF - 264.85 KB]
    19. Assessment of the Dusky Rockfish stock in the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      Rockfish are assessed on a biennial stock assessment schedule to coincide with the availability of new survey data. For Gulf of Alaska rockfish in alternate (even) years we present an executive summary to recommend harvest levels for the next two yea...
      File Type:
      Filetype[PDF - 118.89 KB]
    20. Stock Assessment and Fishery Evaluation Report for the Groundfish Resources of the Gulf of Alaska
      Corporate Authors:
      North Pacific Fishery Management Council. Plan Team for the Groundfish Fisheries of the Gulf of Alaska
      Published Date:
      2016
      Series:
      Gulf of Alaska Stock Assessments
      Description:
      The National Standard Guidelines for Fishery Management Plans published by the National Marine Fisheries Service (NMFS) require that a stock assessment and fishery evaluation (SAFE) report be prepared and reviewed annually for each fishery management...
      File Type:
      Filetype[PDF - 2.23 MB]
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