Topic outline

  • Otolith analysis of walleye pollock larvae (Videos of the student experiment)

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  • Otolith analysis of walleye pollock larvae × SDGs

    • SDGs2  SDGs14  

         In order to protect fishery resources, it is essential to increase the survival rate of fishery species during the larval stage. Otolith analysis is an effective way to examine growth during the larval stage. I would like to contribute to the SDGs (2 ZERO HUNGER and 14 LIFE BELOW WATER) by making this analysis known to as many people as possible.

         The United Nations has designated the decade starting in 2021 as the "Decade of Ocean Science," with the aim of contributing to the SDGs. Ocean science, as defined by the UN, includes the field of fisheries.


  • Walleye pollock larvae


    • Standard length measurement of walleye pollock larvae
      (Automatically translated subtitles are available on YouTube.)

    • Removal of otoliths from walleye pollock larvae
      (Automatically translated subtitles are available on YouTube.)

    • Embedding and polishing of otoliths from walleye pollock larvae
      (Automatically translated subtitles are available on YouTube.)

    • Sketches of otoliths and ring counts in walleye pollock larvae
      (Automatically translated subtitles are available on YouTube.)

    • Statistical processing of otolith ring count of walleye pollock larvae
      (Automatically translated subtitles are available on YouTube.)

  • Related video materials on walleye pollock

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