The reason for this huge population overload is partly because each of the species could lay up to a million eggs, while bighead and Silver Carp lay up to two million eggs in a single year. The Asian Carp in all species lay their eggs in slow moving rivers and streams, however these waterways must be long enough to carry the eggs till they begin swimming. To get to this stage of development where the fish hatches and is able to swim takes more than 100 hours (Chapman. 2010) Thankfully, besides the Mississippi and select parts of the Missouri and Illinois river are optimal for laying eggs. The Asian Carp have a lifespan across all species from 3-7 years, depending on the region. The conditions needed for the Silver Carp to survive temperatures
