1. Sufia Zaman *, Subhra Bikash Bhattacharya *, Prosenjit Pramanick *, Atanu Kumar Raha * and Abhijit Mitra Dept. of Marine Science, University of Calcutta * Also Attached to Techno India University, Salt lake Campus, Kolkata-91 Spatio-temporal variations of phytoplankton cell volume: a case study from Indian coastal ecosystem APPLICATION Mean seasonal & spatial variation of phytoplankton cell volume (µm3) during 2010-11. Mean seasonal & Spatial variation of phytoplankton cell carbon content (pg x10 5 /l) during 2010-11. Spatial variations of salinity during 2010-11 in selected stations. W C VariablesFcalFcrit Salinity Between sectors 101.7018.51 Between seasons 177.0019 Phytoplankton group Cell volume Between sectors Diatom4899.4118.51 Dinoflagellates59.7818.51 Cyanobacteria & green algae 467.5418.51 Between Seasons Diatom703.7619 Dinoflagellates1440.3619 Cyanobacteria & green algae 120.2219 The present study is a baseline documentation confirming the role of salinity on the cell volume of phytoplankton and can be applied as an indicator for salinity in the estuarine waters of Sundarbans; local level carbon sequestration STUDY AREA GLOBAL SEA LEVEL RISE SEA LEVEL RISE OF STUDY AREA SALINITY TRENDS OF INDIAN SUNDARBBANS Average salinity Western Sector = 14.98 ± 9.16 psu Central Sector = 20.60 ± 8.82 psu Average cell volume (µm 3 ) Western Sector = 86.89-271405.63 Central Sector = 85.39-227153.21