Indonesian Journal of Limnology (InaJL) is a periodical publication from the Indonesian Society of Limnology (Masyarakat Limnologi Indonesia [MLI]). Published semiannually, the journal has a goal to be a means of communication and dissemination of research results in tropical limnology. The articles in this journal examines the interaction between factors: physics, chemistry, biology, hydrology, and geology on inland waters ecosystems. Definition of inland waters here are all forms of water bodies on the surface of the earth to the landward of the line of the lowest tides either fresh or brackish water such as rivers, swamps, lakes, water, wetlands, reservoirs, ponds, and dams. Focus and Scope InaJL publishes research articles and reviews about all aspects of tropical limnology including theory, experiments, instrumentation or modelling. Papers can cover the following subject areas, which are used to categorize manuscripts: Physical Limnology Chemical Limnology Biological Limnology Paleo-Limnology Aquatic Ecology Aquatic Toxicology Ecohydrology Aquaculture Aquatic Environmental Engineering Inland Waters Management Hydroinformatics Socio-Limnology