K. Kuotsu*, C.R. Deb, S.K. Chaturvedi and K. Semy
Abstract
The present study was carried out at DzuÃËkou valley, a high altitude region of Nagaland, Northeast India.Algal diversity was evaluated from 3 depression springs and 2 rivers. A total of 62 algal taxa belonging to41 genera and 8 classes were recorded. The class Baccillariophyceae (37 species) was the most dominantwhile the genus Eunotia (8 species) represented the maximum genera. Biodiversity indices such as Shannonââ¬âWiener index (H2), Simpsonââ¬â¢s diversity index (D) and Margalef richness (R) shows maximum diversityand richness in Depression Spring 2 followed by Depression Spring 1, Depression Spring 3, River 1 andRiver 2. Pielouââ¬â¢s index (J) depicted the highest evenness value from River 1. Palmerââ¬â¢s pollutionindex of allthe sites was found to be dââ¬Â10 thus indicating no organic pollution. This study will provide a preliminaryscreening for algal community thriving at high altitude of Nagaland and coherently aids to the biodiversityrichness of the Indo-Burma hotspot.