Effect of Microplastic on lifetable attributes of Ceriodaphnia cornuta: a laboratory bioassay test
*1Nisha Kumari and 1Kumar Rajan
1Ecosystem Ecology Research Unit, Department of Environmental Science, School of Earth, Biological and Environmental Sciences, Central University of South Bihar, Gaya-824236 (India) *1Corresponding author email id nisha123994@gmail.com
ABSTRACT
Ubiquitous presence of microplastics (MPs) in present age causing toxicity throughout the trophic level in aquatic ecosystem. Here, we studied life table attributes of Ceriodaphnia cornuta in MPs contaminated environment. Life table parameters were estimated at 1 mg L-1 concentration of MPs against control. We studied longevity, fecundity, maximum life span, net reproductive rate (NRR), gross reproductive rate (GRR) and intrinsic rate of natural increase among treatment and control cohort. The present results indicate that MPs negatively affected the survival and fecundity of C. cornuta at environmentally relevant concentration. Overall our studies show that acute exposure to MPs has no impact whereas chronic exposure has high impact on C. cornuta.