In March 2021, observation on ice was conducted in Lake Saroma in Hokkaido. Lake Saroma is a saltwater lake that is directly connected to the ocean. This place is well known to sea ice researcher as a place where sea ice observation can be done easily. It is much easier than going to the Arctic or Antarctic oceans. In Lake Saroma, we conducted tests of sea ice observation in the Arctic. The tests were to examine the methods of environmental DNA sampling in order to study the biodiversity of the Arctic Ocean. We tried several water sampling methods (e.g., lowering a water sampling bottle with a rope, lowering a hose, and pumping by hands). The video also contains an explanation of basic knowledge about environmental DNA (by Dr. KAWAKAMI Tatsuya, a postdoctoral researcher at Hokkaido University).
The leader of the Lake Saroma field campaign was Dr. Nomura at the Field Science Center for Northern Biosphere,
Hokkaido University. I, Umezawa, also participated in the observation as a member of Dr. Nomura's team.
The video of eDNA sampling in Lake Saroma in 2021 (LASBOS YouTube)