Microscopy, Electron, Transmission, Microscopy, Electron, Scanning, Oceans and Seas, Pinctada - cytology, Seawater - analysis, Calcium - metabolism, Hemocytes - classification, Pinctada - immunology, Pinctada - physiology, Immunity, Innate, Global Warming, Animals, Flow Cytometry, Hemocytes - cytology, Hydrogen-Ion Concentration