Glutathione Nemipterus peronii Paraphilometroides nemipteri oxidative stress ACCUMULATION Atauro Island CADMIUM CAENORHABDITIS-ELEGANS FISH Heavy metals KINASE Lesser Sunda Islands OXIDATIVE STRESS Oxidative stress PATHWAYS Pacific Ocean S-TRANSFERASE South China Sea Sunda Isles TISSUES Timor Timor-Leste WATER arsenic bioaccumulation heavy metal heavy metals nematode perciform protein