While resource managers and other conservationists worry about keeping Asian carp out of the Great Lakes, in Austin they’re giving them a real Texas welcome. In fact, just last week city officials dumped 3,000 of the fish into Lake Austin, according to the Austin-American Statesman. That’s on top of 10,000 they already put in the lake to control hydrilla, an aggressive plant that clogs the lake, fouls propellers and overtakes native plants. The grass carp is one of the species of Asian carp that wildlife experts fear could bypass an electric barrier at the Chicago River and eventually get into Lake Michigan. The concern is that the voracious eaters will thrive, disrupt the ecosystem and threaten the survival of native species.