Freshwater Ecotoxicology in Costa Rica Ugalde R., Echeverría-Saénz S., de la Cruz E., Pinnock M., Mena F., Castillo, L. “Freshwater Ecotoxicology in Costa Rica”. In: Araujo C., Shinn C. Ecotoxicology in Latin America. Chapter 11. 2017. Nova Publishers, NY. ISBN: 978-1-53610-600-8