Effect of the Non-Steroidal Anti-Inflammatory Drug Ibuprofen on the Chydorid Alona guttata (Chydoridae: Aloninae) and the Rotifer Lecane papuana (Monogononta: Lecanidae) Fed on Different Algal Densities

Abstract

Ibuprofen (IBP) has demonstrated its toxicological potential toward aquatic biota: affecting microalgae and their nutritional value and altering the population growth of algae-feeding zooplankters. This study assessed the effect of a) IBP sublethal concentrations, and b) three different algal densities ( Nannochloropsis oculata at 0.25, 0.50, and 1.00 × 10 6 cells/mL) on Alona guttata and Lecane papuana. We determined LC50 values for both species (63.476 mg/L and 12.053 mg/L, respectively)