Mangrove forest on the active delta of Indian Sundarban is a unique biosphere and a declared world heritage site. It prevails with the dynamic features of a tidal estuary along with special floral diversity of mangorves. The estuaries and the adjoining mangroves, brakish water ecosystem sustain a very rich aquatic, terrestrial, aerial and arboreal faunal biodiversity.Mangrove areas are an important media for transport of offshore nutrients, as they are the exporters of large amount of plant and animal detritus.Ever increasing destruction of mangroves and simultaneous conversion of land into...