Gyrodactylus salaris
Gyrodactylus salaris | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Platyhelminthes |
Class: | Monogenea |
Order: | Gyrodactylidea |
Family: | Gyrodactylidae |
Genus: | Gyrodactylus |
Species: | G. salaris
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Binomial name | |
Gyrodactylus salaris Malmberg, 1957
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Gyrodactylus salaris, commonly known as salmon fluke,
The parasite is 0.5 mm (0.02 in) long,
Interactions with host fish
When feeding, the parasite attaches its anterior end to the fish with cephalic glands. It everts its
History
G. salaris was first described in 1952,[8] after being removed from a Baltic strain[2] of Atlantic salmon kept at the Hölle Laboratory in Sweden, near to the river Indalsälv.[8] At the time, it was not thought to cause disease in the host fish.[8] The presence of G. salaris on fish became a World Organisation for Animal Health notifiable disease in 1983.[8]
Catastrophic losses of Atlantic salmon occurred in Norway in the 1970s following the introduction of G. salaris. By 2001, the salmon populations of 41 Norwegian rivers had been virtually wiped out in this way.[4]
Historically, Gyrodactylus-infected rivers have been treated with the indiscriminate pesticide/piscicide rotenone. A newer method of treatment employs dosing small volumes of aqueous aluminium and sulfuric acid into the river. A huge advantage of this method is its ability to kill the parasites without harming the hosts. This new method has shown promising results in Batnfjordelva and Lærdalselva, two rivers in Norway.[9]
References
- ^ Minchin, Dan (7 January 2008). "Gyrodactylus salaris" (PDF). DASIE: Delivering Alien Invasive Species Inventories for Europe. Archived from the original (PDF) on 24 December 2017. Retrieved 2017-11-05.
- ^ ISBN 9781780642079.
- ^ C.Michael Hogan. 2011. Norwegian Sea. Encyclopedia of Earth. Eds. P.Saundry & C.J.Cleveland. National Council for Science and the Environment. Washington DC
- ^ a b c d "Notifiable diseases : Gyrodactylus salaris". Scottish Government. 8 December 2009. Retrieved 2017-11-05.
- ISBN 9789401599566.
- ^ "Do not spread salmon parasite Gyrodactylus salaris" (PDF). Finnish Ministry of Agriculture and Forestry. Archived from the original (PDF) on 30 August 2005. Retrieved 11 November 2010.
- ISBN 978-0-470-96288-6.
- ^ ISBN 9781444348194.
- PMID 1080.