Sass et al. performed a study on the effects of Silver and Bighead carp, commonly known as Asian carp, on zooplankton communities in the Illinois River, Illinois USA. This was done to see what damage could occur to the Great Lakes if the Asian carp make their way through the electric barriers in Chicago Sanitary Ship Canal, based on the damage already done to the Illinois River. But how can we compare a river to a Lake? The answer is we can’t so it is possible that the influence of Asian carp on zooplankton communities in rivers is different that the influence in the Great Lakes.