when did the snakehead fish arrive in the us
Snakehead (fish) Snakeheads became a national news topic in the United States because of the appearance of Channa argus, commonly known as northern snakeheads, spawning in a Crofton, Maryland, pond in 2002.[8] Northern snakeheads became permanently established in the Potomac River around 2004;[10] and possibly established in Florida.[8] in approximately 120 miles (190Â km) of river, the population has surpassed 21,000 individuals.[11]