Abstract
The present study aims to make a comparative account of quantitative structure of mangroves in two Islands of Sunderban Biosphere Reserve in terms of frequency, density and abundance. The study was done by quadrate analysis at selected zones of the sample sites. 17 plant species are taken into consideration, out of which 7 are present in both the Islands. Among these, Avicennia alba shows highest frequency in Lothian and both Avicennia alba and Excoecaria agallocha in Sajinakhali. Avicennia alba shows high abundance and density in Lothian and Sajinakhali in comparison to other common species; but its abundance and density level are higher in Lothian Island.
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