Mixed parasitism induced experimentally in yellowtail, Seriola dorsalis reared in RAS: intensity and spatial distribution on the skin and gills

Vivanco-Aranda, Miroslava; Lechuga-Sandoval, Claudia; Del Río-Zaragoza, Oscar B.; Viana, María T.

Mixed ectoparasitosis induced in juveniles of yellowfin, Seriola dorsalis

dc.contributor		en-US
dc.contributor		es-ES
dc.creator	Vivanco-Aranda, Miroslava
dc.creator	Lechuga-Sandoval, Claudia
dc.creator	Del Río-Zaragoza, Oscar B.
dc.creator	Viana, María T.
dc.date	2019-03-14
dc.date.accessioned	2020-11-05T13:36:31Z
dc.date.available	2020-11-05T13:36:31Z
dc.identifier	http://lajar.ucv.cl/index.php/rlajar/article/view/vol47-issue1-fulltext-17
dc.identifier	10.3856/vol47-issue1-fulltext-17
dc.identifier.uri	https://revistaschilenas.uchile.cl/handle/2250/159131
dc.description	Fish mariculture from the genus Seriola spp. can present high mortalities due to parasites. In Mexico, the mortality yellowtail Seriola dorsalis caused by parasites is low, and there are no reports of massive mortality events. However, as the aquaculture activity of yellowtail intensifies, parasites will be increasingly conspicuous. Therefore, the present study is an aim to know S. dorsalis’s susceptibility to a monogenean infection mixed under RAS experimental conditions and their intensity and spatial distribution on the skin and gills. In this study, a parasitic mix induction was performed using two monogenean species such as Zeuxapta seriolae and Benedenia seriolae besides the Amyloodinium ocellatum, a dinoflagellate that was naturally presented. At the end of the experiment after 45 days, B. seriolae prevalence was 100% with a mean intensity of 122 parasites and showed a preference for the head and body of the fish. Zeuxapta seriolae prevalence was 100% with a mean intensity of 40 parasites preferentially found in the second branchial arch. In the case of A. ocellatum prevalence was of 100% with a mean intensity greater than 200 trophozoites per fish. The fish mortality reached 90% at the end of the experiment. During the infection, the fish weight decreased a 14% at the end of the experiment. Therefore, it will be necessary to carry out prophylactic and control strategies, to reduce the impact of these parasites under culture conditions.	en-US
dc.description	Fish mariculture from the genus Seriola spp. can present high mortalities due to the presence of parasites. In Mexico, the mortality yellowtail S. dorsalis caused by parasites is low, and there are no reports of massive mortality events. However, it is expected that as the aquaculture activity of yellowtail intensifies, the presence of parasites will be increasingly conspicuous. Therefore, the present study aims to evaluate the susceptibility of S. dorsalis to being simultaneously infested by parasites under experimental conditions. In this study, a mix parasitosis induction was performed using two monogeneans species such as Zeuxapta seriolae and Benedenia seriolae besides the Amyloodinium ocellatum, a dinoflagellate protozoan. After 45 days, the prevalence of A. ocelllatum was of 100% with a mean intensity greater than 200 trophozoites per fish. In the case of B. seriolae, the prevalence was 100% with an mean intensity of 122 parasites and showed a preference for the head and body of the fish. However, the prevalence of Z. seriolae was 100% with a mean intensity of 40 parasites preferentially found in the second branchial arch. The fish mortality reached a 90% at the end of the experiment. The weight of the fish was significantly affected during the infestation with a 14% decrease at the end of the experiment. Therefore, it will be necessary to implement prophylactic and control strategies, to minimize the impact of these parasites under culture conditions.	es-ES
dc.format	application/pdf
dc.language	eng
dc.publisher	Pontificia Universidad Católica de Valparaíso	en-US
dc.relation	http://lajar.ucv.cl/index.php/rlajar/article/view/vol47-issue1-fulltext-17/1034
dc.rights	Copyright (c) 2019 Latin American Journal of Aquatic Research	en-US
dc.source	Latin American Journal of Aquatic Research; Vol 47, No 1 (2019); 156-163	en-US
dc.source	Plataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 47, No 1 (2019); 156-163	es-ES
dc.source	0718-560X
dc.source	0718-560X
dc.subject	Seriola dorsalis; Benedenia seriolae; Zeuxapta seriolae; Amyloodinium ocellatum; parasites; aquaculture	en-US
dc.subject	Seriola dorsalis, parasites, Amyloodinium ocelatum, Benedenia seriolae, Zeuxapta seriolae	es-ES
dc.title	Mixed parasitism induced experimentally in yellowtail, Seriola dorsalis reared in RAS: intensity and spatial distribution on the skin and gills	en-US
dc.title	Mixed ectoparasitosis induced in juveniles of yellowfin, Seriola dorsalis	es-ES
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.type		en-US
dc.type		es-ES

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Mixed parasitism induced experimentally in yellowtail, Seriola dorsalis reared in RAS: intensity and spatial distribution on the skin and gills

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