PARASITIC AND TAXONOMIC ECOLOGY OF ANATIDAE AND PHALACROCORACIDAE ON MARAJÓ ISLAND
Cairina. Phalacrocorax. Helminths. Parasites.
The Anseriforme order has as one of the representative Cairina moschata, known as domestic duck of great economic importance, they have an aquatic habit, and most species are migratory to meet the needs of food, nesting, shelter and molting. Brazil has few species of anatidae. The order Suliformes includes four families, whose representatives are found in all 39 continents, one of them being the Phalacrocorax brasilianus. Both live in a common environment on the Ilha de Marajó, where there is a variable amount of intermediate hosts that are part of the biological cycles of these birds' parasites. Samples of C. moschata and P. brasilianus from Ilha de Marajó, State of Pará, were analyzed. These samples will be obtained from dead birds in the domain of the local population. The parasitic helminths found will be processed for analysis by light microscopy, scanning electron microscopy, histology and molecular biology. Catalogs, identification keys, books and scientific articles with original descriptions and species redescription will be used to identify the taxon. They will be counted, under a stereomicroscope, to determine the parameters of prevalence (%), mean infection intensity (IMI) and mean abundance (in %). Data will be tabulated and compared with data in the existing literature for each identified taxon. Given the above, it is necessary to search for information regarding the gastrointestinal parasites of ducks and cormorants, in order to generate knowledge about the parasitic biodiversity of these animals, in addition to contributing by adding data to the relevant literature, through the production of scientific articles.