Dr. Patrick Mathews Delgado is specialist in aquatic parasitology, studied both natural freshwater habitats and aquaculture systems. His interests include morphology, taxonomy, ultrastructure, histology, molecular phylogenetics, host-parasite interactions, pathology, and production. Dr. Mathews Delgado also works on the development of micro and nano particles for application as drug delivery materials for treatment of fish parasites. His main research focuses on fish parasites, specifically helminths and myxozoans, investigating morphostructure, phylogeny, histopathology, systematics and discovery and description of new parasite species.