Historical Review and Prospect on Diatoms study in India

Abstract

In recent years, diatom studies have been consisting of different approach i.e., taxonomic study, contamination history, paleoclimate etc. The significant study has been reported from the different part of the Indian subcontinent. Especially in India, from the last several decades the study on diatom shifted from taxonomical classification to palaeothermometry study using isotopic analysis. To know the present status and get the future direction it is very important to review the past studies which not only gives the ample information about the records available but also benefitting to get future direction. In the present review we present the comprehensive review on records available from three different geopolitical regions. The review on these three regions shows that most of the work Indian parts in past decades diatom is mostly used for taxonomical and pollution study. However, baseline information on diatom diversity has not been examined in many Indian regions. In recent time the study has been shifted in the direction towards palaeothermometry reconstruction using advance analytical techniques such as stable isotope and others.