IJSR - International Journal of Scientific Research

Dr. Padmanabha. B

Volume : VII, Issue : IV, April - 2018

IMPACT OF AQUATIC POLLUTION ON THE POPULATION DYNAMICS OF ROTIFERS AND PRIMARY PRODUCTION IN THE LENTIC ECOSYSTEMS

Dr. Padmanabha. B

Abstract :

Objective: is to study the impact of aquatic pollution on the population dynamics of rotifers and primary production in the lentic ecosystems.

Materials and methods:In this study, the Water Quality Index (WQI), population dynamics of Rotifersand estimation of primary production in the three lakes (Kamana, Mandakally lake and Dalavai lake) of Mysore city carried out for two years (2015–17).

Results and discussion:The results showed that, the Dalavai lake documented highest WQI or pollution load, Species Dominance Index and Community Respiration but lowest Species Diversity Index, Gross Primary Production and Net Primary Production. Kamana lakerecorded lowest WQI or pollution load, Species Dominance Index and Community Respiration but highest Species Diversity Index, Gross Primary Production and Net Primary Production.

Conclusion:The comparative analysis of these results suggest that, increase in the Water Quality Index or Pollution load, increases species dominance and community respiration but decreases species diversity, Gross and Net primary production in the lentic ecosystem.