Fig. 1

Location map highlighting coastal states and districts of India. (a) Gujarat, (b) Maharashtra, (c) Goa, (d) Karnataka, (e) Kerela, (f) Tamil Nadu, (g) Andhra Pradesh, (h) Odisha and (i) West Bengal (The maps were generated using ArcGIS software version 9.1 https://www.arcgis.com/index.html).