Control of the sea louse Caligus rogercresseyi in the Chilean salmonid industry is reliant on chemical treatments. Azamethiphos was. PDF | On Jan 1, , J F Burka and others published 22 Lepeophtheirus salmonis and Caligus rogercresseyi. One of the pathogens causing the highest economic impacts on the Chilean salmon industry is the ectoparasite copepod Caligus rogercresseyi.

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Sea lice have both free-swimming planktonic and parasitic life stages, all separated by moults.

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Aquaculture Diversity of fish Fish diseases and parasites Fish farming Fisheries management Fisheries science Individual fishing quota Sustainable fishery Overfishing Wild fisheries. Proceedings of the Royal Society B. Branchiuransfamily Argulidae, order Arguloida are known as fish lice and parasitize fish in freshwater.

A sea louse plural sea licenot to be confused with sea fleasis a member of a family of copepods small crustaceans within the order Siphonostomatoidafamily Caligidae.

Archived from the original on Two published studies have tested vaccine candidate antigens against salmon lice, which resulted in a reduced infection rate Grayson et al. Lepeophtheirus salmonis and various Caligus species are adapted to salt water and are major ectoparasites of farmed calius wild Atlantic salmon.

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Rogercreseeyi on the salmon host Salmo salar “.

Reviews in Fisheries Science. The source of L. Twenty-four hour exposure bioassays with azamethiphos were performed to select sensitive and resistant lice.

World Register of Marine Species. Sea-lice infection causes a generalized chronic stress response in fish since feeding and attachment cause changes in the mucus consistency and damage the epithelium resulting in loss of blood and fluids, electrolyte changes, and cortisol release.

Caligus – Wikipedia

Aquaculture Association of Canada Caigus Publication. Preadult and adult sea lice, especially gravid females, are aggressive feeders, in some cases feeding on blood in addition to tissue and mucus. One female can produce pairs of egg strings in a lifetime around 7 months. Walter TC, Boxshall G, eds. Mutations in the AChE gene are the main cause of rogerctesseyi resistance in arthropods, including other sea lice.

The End of the Line: Wikimedia Commons has media related to Caligidae.

World of Copepods database. Cleaner fishincluding five species of wrasse Labridaeare used on fish farms in Norway and to a lesser extent in Scotland, Shetland and Ireland. The range of therapeutants for farmed fish was limited, often due to regulatory processing limitations. Journal of Fish Biology. Control on salmon farms. By using this site, you agree to the Terms of Use and Privacy Policy.


Good husbandry techniques include fallowing, removal of dead and sick fish, prevention of net fouling, etc. In silico analysis and 3D modelling of the protein sequences identified both of them as invertebrate AChE type 1; they were named C.

Proceedings of the National Academy of Sciences. British Columbia Ministry of Agriculture and Lands.

Retrieved 4 March Avermectins belong to the family of macrocyclic lactones and are the major drugs used as in-feed treatments to kill sea lice. Angling Big-game fishing Catch and release Fishing tournaments Fly fishing. The first avermectin used was ivermectin at doses close to the therapeutic level and was not submitted for legal approval for use on fish by its manufacturer.

Eggs hatch into nauplii I, which moult to a second naupliar stage; both naupliar stages are nonfeeding, depending on yolk reserves for energy, and adapted for swimming. Samples of adult male and female C.