Abnormal growth of benthic forminifera of inter generic individuals and microboring indicating environmental stress in portblair, India

Foraminifer a single shelled protozoan whose high level taxonomical studies are based on shell mineralogy can be categorized into four groups as taxa with organic shell, agglutinated taxa, calcareous perforate taxa and calcareous imperforate and habituating in marine and mangrove environments. For the present study benthic foraminifer fauna has been collected in the Van veen grab sampler in the Sosistris Bay, North Bay, Aberdeen jetty, Chidyatapu, and Wandoor of Port Blair India. To study the Shell abnormalities such as stunted foraminifera shells, abnormal wall structures and shell deformation, mineralogical projection, micro borings, pitted surface, calcification anomalies, dissolution and shell deformation in foraminifera the light microscopic SEM and EDAX studies are carried out. The basic finding of the study reveals that shell abnormalities are common in foraminifers’ species.