"The intruder joins three other Asian carp species already in the [Mississippi], including the silver carp, which have jumped into boats and injured people."

Read that again. The carp have jumped into boats and injured people. Cry havoc and let fly the carps of war.

-James Lileks, Backfence (as performed by Kenneth Brannagh)

Though I do have to admit, I think it'd sound better if he'd left it at "let slip."