The present
study area was divided into south-east (SE) coast of India consisting
of Krishna south (KS), Krishna north (KN), Godavari south (GS)
and Godavari north (GN) transects, and northeast (NE) coast
includes Vamsadhara (VD), Hyadri (HD), Mahanadi south (MS)
and Mahanadi north (MN) transects (Fig. 1).