Collection of walleye pollock eggs and larvae (plankton net)

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• Collection of walleye pollock eggs and larvae (plankton net)

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    Japanese URL
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    Educational Material List (in Japanese) URL

• Collection of walleye pollock eggs and larvae × SDGs
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     The survival rate of eggs, larvae and juveniles has a significant impact on the quantity of fishery resources. To continue fishing, we need to know this accurately. This video material will show how to collect fish eggs, larvae and pelagic juveniles. I would like to contribute to the SDGs (2 ZERO HUNGER and 14 LIFE BELOW WATER) by letting people around the world know about it.

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

    
    

• Collection of walleye pollock eggs and larvae (plankton net)
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    English subtitles are available.
    
    【Video description】
    

    "Resource survey of walleye pollock (Gadus chalcogrammus) on T/S Ushio-maru"

    In winter, the largest spawning ground of walleye pollock Japan Pacific Stock is formed in the mouth part of Funka Bay, Hokkaido. Every December-March, Hokkaido University monitors the density of walleye pollock eggs and larvae once every 2-3 weeks to investigate the factors that cause fluctuations in abundance.
    

    The survey data are shared with the Fisheries Research and Education Agency and the Hokkaido Research Organization Fisheries Research Department, and is used in the resource forecasting project. It is also used as a practical training for undergraduate students of fisheries and graduate students of the Faculty of Fisheries Sciences.

• Related video materials on walleye pollock
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    Otolith analysis of walleye pollock larvae (Videos of the student experiment) URL
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    Catching of walleye pollock larvae (FMT net) URL

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