Distributions of main and stricter merger fractions in OPT AGNs as [OIII] luminosity increases for the SDSS sample (left) and the GAMA sample (right). For the GAMA sample we also separate them into two redshift bins. Errors are calculated through binomial statistics. The x-axes are indicated due to the different aperture correction and flux calibration methods applied in the SDSS and GAMA surveys.