單元大綱


  • 【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.



    • Organic matter size

      To understand the movement of organic particles, their size is important. Learn the size distribution of organic matter.


    • Sedimentation of organic particles


      　Learn the conditions and factors that cause organic particles to settle (gravitational fall) in seawater.

      　The picture below is an example. Let's understand it quantitatively from the calculation formula of sedimentation rate.



    • Class content on marine organic matter 網址