Tourism is one of the largest economic sectors in the world. It has a positive effect on the economy of many countries. but it can also lead to negative impacts on local ecosystems. Informal environmental education through Citizen Science (CS) projects can be effective in increasing citizen environmental knowledge and awareness in the short-term. https://fxqclmb1mvzoa.timeblog.net/70688441/ecology-of-parasites-of-metynnis-lippincottianus-characiformes-serrasalmidae-from-the-eastern-amazon-region-macapá-state-of-amapá-brazil