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Why Stop Invasive Species
It is important to not introduce new species into a non-native area because it will distort the natural balance in the ecosystem. It could result in the over consumption of one or many species of plant or animal which will then effect the diet of the native organisms that also feed on that same species. This form of disorder or unbalance in an ecosystem will either cause a rise or fall of population in the different affected species within that ecosystem. Normally these population changes do not have a positive impact, despite the initial intentions from when the alien species was first introduced.
U.S. Fish and Wildlife Service
Snakeheads have already caused millions of dollars in damage.
The northern snakehead has become a popular sport fish for fishermen.
Efforts To Control
Red marks where Snakeheads can live.
All snakehead fish have been assigned an injurious wildlife status. The fish and viable eggs cannot be moved through importation or interstate transport due to the Federal Lacey Act. If a population of snakeheads are found efforts will be made to eradicate the fish. Professionals may use chemicals in the water to kill these fish, but it must be done so extremely carefully to not cause damage to any other species in the habitat. A permit is also necessary to use chemicals in the water, no matter what the reason is. If a fisher catches a snakehead fish they are highly encouraged to kill it, freeze it, and then report it for documentation. They are not supposed to release it back into the water. It is also illegal to keep a snakehead as a pet, buy one, or keep one in your possession without a permit. If a snakehead is legally caught while fishing it is only permitted to keep it as long as it is killed immediately.
the Northern Snakehead is a long thin fish with one long dorsal fin. It has a small anterior head with a large mouth extending beyond the eye. The mouth is full of large sharp teeth. It can grow up to 1 metre and weigh up to 8kg. It is coloured a golden brown with dark blotches on the sides. It is a fresh water fish and cannot tolerate any salinity in excess of ten parts per million. It is able to breathe air and thus survive on land for several days.
Alien Species Invasion: The Deep Economic Impact. (2010, March 21). Retrieved from http://www.investopedia.com/financial-edge/0310/alien-species-invasion-deep-economic-impact.aspx
Invasive Species: Aquatic Species - Northern Snakehead (Channa argus). (n.d.). Retrieved from http://www.invasivespeciesinfo.gov/aquatics/snakehead.shtml
Northern Snakehead | Ontario’s Invading Species Awareness Program. (n.d.). Retrieved from http://www.invadingspecies.com/invaders/fish/northern-snakehead/
Northern Snakehead. (n.d.). Retrieved from
http://www.anstaskforce.gov/spoc/snakehead.php
Not welcome in Canada: Preventing a Northern Snakehead invasion. (n.d.). Retrieved from http://www.dfo-mpo.gc.ca/science/publications/article/2009/01-06-09-eng.htm
http://www.invadingspecies.com/invaders/fish/northern-snakehead/
http://nas.er.usgs.gov/queries/factsheet.aspx?speciesid=2265