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Amoebic gill disease (AGD) in Atlantic salmon (Salmo salar) farmed in Chile
Citation
Bustos, PA and Young, ND and Rozas, MA and Bohle, HM and Ildefonso, RS and Morrison, RN and Nowak, BF, Amoebic gill disease (AGD) in Atlantic salmon (Salmo salar) farmed in Chile, Aquaculture: An International Journal Devoted to Fundamental Aquatic Food Resources, 310, (3-4) pp. 281-288. ISSN 0044-8486 (2011) [Refereed Article]
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DOI: doi:10.1016/j.aquaculture.2010.11.001
Abstract
Between May and November 2007, three marine Atlantic salmon farms around Chiloé Island, Chile, reported
mortalities in which affected fish presented with Caligus rogercresseyi infections and gross gill lesions
characteristic of amoebic gill disease (AGD). Histological examination of the gills from affected fish confirmed
the presence of AGD lesions. Trophozoites possessing one or more endosymbiotic Perkinsela amoeba-like
organisms (PLOs) were observed in association with hyperplastic tissue. Further analyses were undertaken
using a combination of PCR and in situ hybridization and the trophozoites were identified as Neoparamoeba
perurans. Thus, our data indicate that N. perurans is a causal agent of AGD in Chile. However, it is possible that
AGD was not the single cause of mortalities in the epizootics investigated here. The exceptionally high level of
co-infection with Caligus rogercresseyi (maximum mean intensity 34, prevalence 100%), could have
contributed to the production losses.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Agricultural and Veterinary Sciences |
| Research Group: | Fisheries Sciences |
| Research Field: | Aquatic Ecosystem Studies and Stock Assessment |
| Objective Division: | Animal Production and Animal Primary Products |
| Objective Group: | Fisheries - Aquaculture |
| Objective Field: | Aquaculture Fin Fish (excl. Tuna) |
| Author: | Young, ND (Mr Neil Young) |
| Author: | Morrison, RN (Dr Richard Morrison) |
| Author: | Nowak, BF (Professor Barbara Nowak) |
| ID Code: | 71988 |
| Year Published: | 2011 |
| Web of Science® Times Cited: | 35 |
| Deposited By: | NC Marine Conservation and Resource Sustainability |
| Deposited On: | 2011-08-18 |
| Last Modified: | 2017-11-03 |
| Downloads: | 1 View Download Statistics |
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