Figure 3 (IMAGE) Shinshu University Caption The river in a subtropical jungle, Iriomote Island. Sampling was conducted by sea kayaks since some of the cites were difficult to access via overland routes. Credit Koji Tojo, Shinshu University Usage Restrictions The image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.