This website provides access to long-term monitoring data of Lake Kasumigaura made available by NIES. Please read the terms of use before using monitoring data.
Updates
21-Feb-2025
Zooplankton (Mysida) data is updated (up to March 2023).
14-Feb-2025
Zooplankton data is updated (up to March 2023).
10-Feb-2025
Bacteria, protozoa, picophytoplankton, primary production, phytoplankton data are updated (up to March 2023).
17-Jan-2025
Water temperature data of Lake Kasumigaura and Lake Inawashiro and Simulation source code are added.
05-Dec-2024
Fish density and fish biomass data are updated (up to September 2024).
15-Dec-2023
Bacteria, protozoa, picophytoplankton, primary production, phytoplankton, zooplankton, benthos, fish, and water quality (Nutrients, in-situ and other variables) data are updated (up to March 2022).
19-Jan-2023
Some corrections were made to the water temperature in Survey data2.
05-Dec-2022
Bacteria, protozoa, picophytoplankton, primary production, zooplankton (Mysida), benthos, and Water quality (Nutrients, in-situ and other variables) data are updated (up to March 2021).
Phytoplankton data is updated (up to November 2020).
20-Oct-2022
Fish density and fish biomass data are updated (up to Oct 2022).
24-May-2022
Fish density and fish biomass data are updated (up to May 2022).
14-Mar-2022
Fish density and fish biomass data are updated (up to March 2022).