Silver carp are dying in the Missouri River near Vermillion, S.D. And they’ve been found dead elsewhere as well.
That’s good news, of course. We have far too many of these exotic invaders in far too many of our rivers.
But what concerns resource managers is that they don’t know the reason or reasons for these die-offs. Possibly they are related to water quality. Or maybe they are occurring because of a disease. If it’s the latter, the disease could pose a threat to other species.