【Video】LASBOS card 024

024_セジメントトラップ Sediment trapSediment trap

   A sediment trap is an oceanographic survey apparatus that collects particles settling from the surface of the ocean towards the ocean floor. It could also be called the world’s most expensive trash can. Multiple cups that change at time intervals are set beneath a large funnel to collect the settling particles. During a cruise of the Oshoro-maru, a sediment trap was anchored in the Arctic Ocean near the Bering Strait and collected one year later. The sediment will be used in research on the biological productivity of that area of ocean and the seasonal variation of organic matter.

Sediment trap