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
15-Oct-2025
Phytoplankton data is updated (up to March 2024).
08-Oct-2025
Water quality data (Nutrients, in-situ, elements and other variables) is updated (up to March 2024).
02-Oct-2025
Fish density and fish biomass data is updated (up to September 2025).
20-Aug-2025
Primary productions data is updated (up to March 2024).
30-Jul-2025
Bacteria, protozoa, picophytoplankton, zooplankton and benthos data is updated (up to March 2024).
07-Apr-2025
Cyanobacteria rDNA and rRNA density data is released.
07-Apr-2025
Water quality (Nutrients, in-situ, elements and other variables) and benthos data is updated (up to March 2023).
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 and phytoplankton data is updated (up to March 2023).
17-Jan-2025
Water temperature data of Lake Kasumigaura and Lake Inawashiro and Simulation source code are added.
