Topic outline

  • 1st time: Water flow

  • 2nd time: Surface mixed layer and spring bloom

    In subarctic waters, a large phytoplankton bloom occurs in early spring when sufficient light penetrates into nutrient-rich surface waters. The bloom ends when surface nutrients are depleted. Learn how bloom works.

    Diatom blooms occur every year in Funka Bay, Hokkaido, from late February to mid-March.

  • 3rd-4th: Marine organic matter

    【introduction】 Most of the substances in seawater can be incorporated into organic matter. When organic particles become large, they fall by gravity (sedimentation). When organic matter is used as food for living things, the elements it contains become mineralized. It is easy to understand if we follow the flow of materials in the ocean, focusing on organic matter. Learn about the flow of matter as shown in the picture below.

  • 6-7th: Carbonic acid components of the ocean

    Learn about carbon dioxide (carbonic acid in seawater), which is attracting the most attention in ocean material cycle research.

  • 8th: Oxygen in the ocean

    In photosynthesis and respiration, oxygen moves in the opposite direction to carbon dioxide. Measuring dissolved oxygen in seawater is the cornerstone of oceanography.

  • 9-10th: Marine nutritional components

    What determines the distribution of basic production in the ocean is the amount of nutrients supplied to the ocean surface. Learn about the nutritional content of the sea.

  • 11-12th: Chemistry of marine sediments

    Seawater composition in coastal areas is influenced by chemical changes in seafloor sediments. Learn the chemistry of sediments.

  • 13th: Marine radionuclides

    Learn about radionuclides distributed in the ocean. I would like to ask Professor TAKATA Hyoe of the Fukushima University Environmental Radioactivity Research Institute to give a lecture.

  • 14th: Chemistry of sea ice

    Learn about the chemistry of sea ice and the chemistry of the polar oceans.

  • 15-16th: Regular exams and preliminary days