Uninhabited Lakshadweep island vanishes: Study

One of the biodiversity-rich uninhabited islands part of Lakshadweep has vanished due to coastal erosion and another four such territories in the sea are shrinking fast, claims a new study.

Parali I island, part of Bangaram atoll, which was 0.032 km2 in 1968 has been eroded to an extent of 100 per cent, resulting in its inundation, says R.M Hidayathulla in his research work.

Hidayathulla was awarded PhD in July this year by Calicut University in Kerala for his work “Studies on Coastal Erosion in Selected Uninhabited Islands of Lakshadweep Archipelago with Special Reference to Biodiversity Conservation.”

He conducted studies on assessment of the biodiversity confining to five uninhabited islands –Bangaram, Thinnakara, Parali I, II and III, of which Parali I has been inundated–of Bangaram atoll in Lakshadweep, an archipelago of 36 islands in the Lakshadweep sea.

The study said the complete erosion and inundation of Parali I was pointing to the gravity of issues associated with coastal erosion within the atoll.

On an overall assessment of the changes in the aerial extent of islands using RS/GIS, it has been noticed that all the five islets of Bangaram atoll had undergone coastal erosion, it said.

“The results are indicative of the urgent measures to be implemented on each islet of the atoll to check further erosion.. It is also recommended to check the feasibility of a bio protection strategy using mangroves, in addition to the conventional physical protection measures,” Hidayathulla told.

His guide on the environmental studies, C.C Harilal, said submergence of Parali I was noticed when he visited the Bangram atoll in 2011.

The data obtained were processed using Remote Sensing (RS) and Geographic Information System (GIS) softwares, Harilal said.

“One island has submerged.. We can say Lakshadweep now is not an archipelago of 36 islands,” he told.

The magnitude of net erosion was higher in Parali I island (100 per cent), which resulted in its inundation.

Apart from Parali I, net erosion was higher in Parali II (80 per cent), followed by Thinnakara (14.38 per cent), Parali III (11.42 per cent) and Bangaram (9.968 per cent), the study said.

(Agencies)

Leave a Reply

Your email address will not be published. Required fields are marked *

Make Correct Pattern to CommentWordPress CAPTCHA