Persistent pollutants and aquaculture in tropical Lake Kariba - managing fisheries for sustainability

acuicultura aquaculture ddt environmental impact heavy metals impact sur l'environnement impacto ambiental insecticidas insecticide insecticides metales pesados organochlorine compounds persistance des pesticides persistencia de los plaguicidas pesticide persistence pollution by agriculture pollution de l'eau pollution par l'agriculture sostenibilidad sustainability tilapia tropical zones water pollution zimbabwe zona tropical zone tropicale