ILEC delegates participated in “International Conference on Tropical Limnology” (TROPLIMNO2019) held in Bogor, Indonesia on August 28th and 29th, 2019. This world conference was projected by LIPI (Indonesian Institute of Sciences) as a forum to support sustainable management in the field of tropical limnology for ASEAN countries. Dr. Masahisa Nakamura, the vice chair of ILEC, introduced “LAKES” (Learning Acceleration and Knowledge Enhancement System) in the forum. He also explained the concept and the structure of LAKES and lectured on the method to share the data among SEALNet members jointly with the members of SEALNet (Southeast Asian Limnological Network) who participated in ILEC LAKES Workshop in this past February.