ABSTRACT

The term ‘adaptation’ defines the modification of organs or of whole organism to cope with the existing environmental conditions. Wide ranges of modifications are found in leaf, stem, root (vegetative organs) and reproductive organs of mangrove species. These morphological modifications of organs are distinctly visible in their habitats, even casual visitors can spot easily and differentiate them from other non-mangroves species growing adjacent to coastal regions. The modifications (Table 4.1) that mangroves adapt are essential to sustain in estuarine habitats characterized with a wide range of salinity and hence, the concentration of salt seems to be single determining factor of the mangroves environment. Mangroves are able to control the intake of salt and maintain water balance which is physiologically acceptable (Saenger, 2002).