System of Plankton Database Opening to the Public in Lake Biwa

In Lake Biwa, we have been performing a long term monitoring survey which contain the identification and counting of zooplankton and phytoplankton, aiming the evaluation of the water quality of the lake from multiple standards and to figure out the occurrences of " freshwater red tide" and "Water-bloom". We provide here the information on continuous watch for the lake and it's method as well on the instance of the foundation of "Plankton data opening system" which open the accumulated data to public with the help of GIS.