Remarks on oceanographic observations off the east coast of India

K. Banse

Abstract



This article reviews a literature on oceanographic observations off the east coast of India, which was originally published in 1960. It is suggested that off Waltair/Visakhapatnam during the fall, the tendency for sinking is counterbalanced by the salinity stratification. Strong vertical mixing greatly depresses the surface concentration of oxygen. Nutrients are brought up the same time as indicated by phytoplankton blooms. River discharge during the southwest monsoon does not contribute an important amount of phosphate-phosphorus to the sea. Off Madras, markedly seasonal blooms of phytoplankton are not observed as there is no marked seasonal upwelling. Conditions in other areas of the northern Bay of Bengal are mentioned

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