Patrick Martin¹, Yuan Chen¹, Oon Yee Woo¹, Bernhard Mayer¹, A'an J. Wahyudi² and Jani Tanzil³, (1)Nanyang Technological University, Asian School of the Environment, Singapore, Singapore, (2)Research Centre for Oceanology, BRIN, Jakarta, Indonesia, (3)St. John's Island National Marine Laboratory, Singapore, Singapore