A government study has found that the construction of the Renaissance Dam is likely to lead to the extinction or severe decline of around 12 endemic fish species in Egypt, due to changes in water suitability and productivity. The dam is expected to increase the salinity of the Nile water, threatening the production of tilapia, which makes up over 60% of Egypt's total fish production. The study also highlights the economic and social implications of a potential decline in freshwater fish production, including the loss of jobs and increased reliance on imported fish. The study suggests measures such as introducing new fish varieties, establishing joint projects with African countries for natural fisheries and fish farming, and integrating fish farming with agricultural crops and animal production to mitigate the dam's impact.