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To study how fish assemblages changed at different fillings stages, we compared the present fish assemblages (2015–2017; after the third filling in 2009) with those from periods prior to impoundment (1975), after the first closure (1997–2000), after the first filling (2005–2006), and after the second filling (2006–2009) in the upper, middle and lower sections of the Three Gorges Reservoir, the largest...
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