The volume of freshwater aquaculture (excluding mollusks) more than quadrupled in China
between 1990 and 2010; the top six finfish species currently farmed,
by volume, include grass carp (Ctenopharyngodon idella), silver carp
(Hypophthalmichthysmolitrix), common carp (Cyprinus carpio), bighead
carp (Hypophthalmichthys nobilis), crucian carp (Carassius carassius),
and tilapia (Oreochromis spp.) (Fig. 1).