Gracilaria gracilis as a bioindicator of environmental pollution: Insights into organochlorine pesticide contamination in Marchica LagoonOuiam El Mekki, Mostafa Layachi, Mourad Baghour, Abdelhay Benyaich, Hakima Zidane, Mustapha Akodad, Noreddine Rezzoum, Najib Elouamari, Nassir Kaddouri, Abderrahmane Rahhou, Bouchra Oujidi and Ali SkalliE3S Web Conf., 632 (2025) 01020DOI: https://doi.org/10.1051/e3sconf/202563201020