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dc.contributor.authorGeorge-Nascimento, Mario
dc.contributor.authorCarvajal, Juan
dc.contributor.authorGonzález, Laura
dc.identifier.citationAquaculture 183es_CL
dc.descriptionArtículo de publicación ISI
dc.description.abstractThe ectoparasitic copepod, Caligus flexispina, is causing increasing problems in farmed salmonids in southern Chile. Field and experimental approaches were used to assess whether any of the three host species, rainbow trout Oncorhynchus mykiss, atlantic salmon Salmo salar and coho salmon Oncorhynchus kisutch, is preferentially colonized. Prevalence, abundance, density and developmental stages attained by the parasite in three host species were compared. Results clearly revealed that rainbow trout is the most susceptible species: under field conditions, C. flexispina is more prevalent and abundant and there is a higher proportion of adult stages. No ovigerous females were found in coho salmon. In experimental infestations, rainbow trout were more heavily colonized by infective copepodids, and these were more likely to reach the adult stage. A mixture of factors inherent to each host-parasite relationship is considered to play a role in these observations because coho salmon is also colonized by copepodids but a low proportion of the parasites reach the adult stage. However, atlantic salmon is less suitable for colonizing larva.es_CL
dc.rightsAtribucion-Nocomercial-SinDerivadas 3.0 Chile
dc.subjectSea licees_CL
dc.subjectFarmed salmonidses_CL
dc.subjectHost susceptibilites_CL
dc.titleDifferential infectivity of Caligus flexispina (Copepoda, Caligidae) in three farmed salmonids in Chilees_CL

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Atribucion-Nocomercial-SinDerivadas 3.0 Chile
Except where otherwise noted, this item's license is described as Atribucion-Nocomercial-SinDerivadas 3.0 Chile