Objective
(1) Physiological and ecological studies on the relationship between the distribution and environmental tolerance by oceanic sea skaters, Halobates inhabiting tropical Pacific Ocean, and several environmental factors(PI: Tetsuo Harada,Kochi University) ; (2) Ship-borne measurements of aerosols in the marine atmosphere: Investigation of potential influence of marine aerosol particles on the climate(PI: Fumikazu Taketani, DEGCR/JAMSTEC) ; (3) Study on vertical measurement by in-situ pH/pCO2 sensor(PI: Kiminori Shitashima,Tokyo University of Marine Science andTechnology) ; (4) Aerosol optical characteristics measured by Ship-borne Sky radiometer(PI: Kazuma Aoki,University of Toyama)