fa عمومى General پژوهشي Research Eutrophication is a serious environmental issue affecting many freshwater ecosystems worldwide. It occurs when excess nutrients, such as nitrogen and phosphorus, enter the water body, leading to growth of algae and other aquatic plants. Although it appears to be a harmless natural process, eutrophication can significantly impact physical, chemical, and biological properties of lake ecosystems. One of the most concerning effects of eutrophication is its impact on fish diseases. This essay will examine the relationship between eutrophication and fish diseases and discuss strategies to mitigate its effects. Fish diseases, Impacts of Eutrophication, Environmental issues, Biological characteristics 1 9 http://injvr.com/browse.php?a_code=A-10-1-18&slc_lang=fa&sid=1 F. Kies 10031947532846001131 10031947532846001131 Yes Department of Earth and Environmental Sciences, University of Milano-Bicocca, Italy