Skip to content
@afsc-gap-products

AFSC GAP Survey Data Products

An organization for tracking and fulfilling data requests by the survey team in the AFSC Groundfish Assessment Program.

Welcome to the organization repo for the Groundfish Assessment Program's survey team at the Alaska Fisheries Science Center.

Alaska Fisheries Science Center (AFSC) National Oceanic and Atmospheric Administration (NOAA)
Resource Assessment and Conservation Engineering Division (RACE)
Groundfish Assessment Program (GAP) 7600 Sand Point Way, N.E. bldg. 4
Seattle, WA 98115 USA

Code of Conduct

Please review our Code of Conduct and Contributing Guide. These are adapted from the NMFS Open Science GitHub Organization.

Suggestions and Comments: If you see that the data, product, or metadata can be improved, you are invited to create a pull request, submit an issue to the code’s repository, or submit an issue to the GitHub organization.

The code in this GitHub Organization and associated repository are regularly being updated and improved. Please consider code therein to be living documents and refer to releases for finalized products and project milestones.

User Resources

Data requests

Do you have a data request or want to fulfill one? Go here:

Popular Repositories

Repository Status Description Contact author(s)
akfishcondition deployed Groundfish morphometric fish condition based on length-weight regressions for the EBS, GOA, and AI. R package. @Sean-Rohan-NOAA
akgfmaps deployed Vector features ('shapefiles') for AFSC bottom trawl and longline surveys, groundfish/crab strata, NMFS statistical areas, ESR regions, BSIERP regions, and ADF&G statistical areas. R package. @Sean-Rohan-NOAA
coldpool deployed Cold pool area, mean temperature, and rasters of bottom and surface temperatures from the EBS shelf and NBS bottom trawl surveys. R package. @Sean-Rohan-NOAA, @Lewis-Barnett-NOAA
esrindex deployed Calculate design-based abundance indices for ESRs. R package. @Sean-Rohan-NOAA
gapctd deployed Process data from trawl-mounted CTDs. R package. @Sean-Rohan-NOAA
gapindex deployed For calculating design-based indices of abundance from bottom trawl survey data. R package. @MargaretSiple-NOAA, @zoyafuso-NOAA
gap_products deployed This repository supports code used to create tables in the GAP_PRODUCTS Oracle schema. These tables include the master production tables, tables shared with AKFIN, and tables publicly shared on FOSS. @EmilyMarkowitz-NOAA, @zoyafuso-NOAA, @SarahFriedman-NOAA
navmaps deployed Tools for converting vector geometries into files for plotter software (Globe, TimeZero, OpenCPN) and planning survey operations (e.g. traveling salesperson problem and Hamilton path algorithms). R package. @Sean-Rohan-NOAA
trawlmetrics deployed Process net sensor data from AFSC bottom trawl surveys. R package. @Sean-Rohan-NOAA

Survey Planning

NOAA README

This repository is a scientific product and is not official communication of the National Oceanic and Atmospheric Administration, or the United States Department of Commerce. All NOAA GitHub project code is provided on an ‘as is’ basis and the user assumes responsibility for its use. Any claims against the Department of Commerce or Department of Commerce bureaus stemming from the use of this GitHub project will be governed by all applicable Federal law. Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation or favoring by the Department of Commerce. The Department of Commerce seal and logo, or the seal and logo of a DOC bureau, shall not be used in any manner to imply endorsement of any commercial product or activity by DOC or the United States Government.

NOAA License

Software code created by U.S. Government employees is not subject to copyright in the United States (17 U.S.C. §105). The United States/Department of Commerce reserve all rights to seek and obtain copyright protection in countries other than the United States for Software authored in its entirety by the Department of Commerce. To this end, the Department of Commerce hereby grants to Recipient a royalty-free, nonexclusive license to use, copy, and create derivative works of the Software outside of the United States.

NOAA Fisheries

U.S. Department of Commerce | National Oceanographic and Atmospheric Administration | NOAA Fisheries

Pinned Loading

  1. data-requests data-requests Public

    An empty repo for tracking requests for GAP data

  2. akgfmaps akgfmaps Public

    AFSC fishery-independent survey geospatial features and maps

    R 19 6

  3. coldpool coldpool Public

    Cold pool area and temperature data products from eastern Bering Sea, northern Bering Sea, Gulf of Alaska, and Aleutian Islands bottom trawl surveys.

    HTML 9 1

  4. model-based-indices model-based-indices Public

    code used for model based index production in GOA

    R 7 1

Repositories

Showing 10 of 41 repositories
  • UW-FISH572 Public

    "Principles and applications of fisheries-independent surveys" is a 4-credit course (FISH 572) that delves into the importance of fisheries-independent surveys as a cornerstone for fisheries stock assessment and ecosystem research.

    afsc-gap-products/UW-FISH572’s past year of commit activity
    TeX 0 CC0-1.0 0 0 0 Updated Jan 7, 2026
  • at-bt-index Public

    Combined acoustic trawl survey (AT) and bottom trawl survey (BT) indices of abundance for Bering Sea walleye pollock.

    afsc-gap-products/at-bt-index’s past year of commit activity
    R 0 0 0 0 Updated Jan 6, 2026
  • goa-rockfish-cog Public

    Empirical center of gravity estimates for Gulf of Alaska rockfish species. ESR contribution.

    afsc-gap-products/goa-rockfish-cog’s past year of commit activity
    HTML 0 1 0 0 Updated Jan 2, 2026
  • akgfmaps Public

    AFSC fishery-independent survey geospatial features and maps

    afsc-gap-products/akgfmaps’s past year of commit activity
    R 19 6 6 0 Updated Dec 31, 2025
  • model-based-indices Public

    code used for model based index production in GOA

    afsc-gap-products/model-based-indices’s past year of commit activity
    R 7 1 1 0 Updated Dec 23, 2025
  • gap_bs_data_report Public

    Reproducible and annotated code for developing the EBS and NBS Annual Data report and presentation.

    afsc-gap-products/gap_bs_data_report’s past year of commit activity
    R 11 3 19 0 Updated Dec 23, 2025
  • UW-FISH572-coursework Public

    "Principles and applications of fisheries-independent surveys" is a 4-credit course (FISH 572) that delves into the importance of fisheries-independent surveys as a cornerstone for fisheries stock assessment and ecosystem research.

    afsc-gap-products/UW-FISH572-coursework’s past year of commit activity
    R 1 GPL-3.0 1 0 0 Updated Dec 23, 2025
  • afsc-gap-products/StationAllocationAIGOA’s past year of commit activity
    R 0 0 2 0 Updated Dec 8, 2025
  • gapindex Public

    Calculation of Design-Based Indices of Abundance and Composition for AFSC GAP Bottom Trawl Surveys

    afsc-gap-products/gapindex’s past year of commit activity
    HTML 4 3 1 0 Updated Dec 3, 2025
  • pollock-ddc Public

    Method to apply a density-dependent correction to pollock survey data based on Kotwicki et al 2014

    afsc-gap-products/pollock-ddc’s past year of commit activity
    R 0 0 0 0 Updated Dec 1, 2025

People

This organization has no public members. You must be a member to see who’s a part of this organization.

Top languages

Loading…

Most used topics

Loading…