Fisheries are already beginning to show the effects of altered river ecology below the
dam. Data released to a Three Gorges Dam monitoring program website indicate that
commercial harvests of four species of carp are well below pre-dam levels (Xie et al.
2007). Annual harvest of these commercial fish below the dam from 2003 to 2005 was
50–70% below a 2002 pre-dam baseline and even more dramatic declines are being
seen on larvae and eggs below the dam (see Table WB 3.1)