Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/164431
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage |
Autor: | Sandoval Sierra, José Vladimir CSIC ORCID; Latif Eugenin, F.; Martín, María P. CSIC ORCID ; Zaror, L.; Dieguez-Uribeondo, Javier CSIC ORCID | Palabras clave: | Salmon ITS nrDNA Oomycetes MOTUs Pathogens |
Fecha de publicación: | 2014 | Editor: | Elsevier | Citación: | Aquaculture 434: 462- 469 (2014) | Resumen: | The rapid increase in the aquaculture production of salmonids has been followed by a rise in several diseases. In particular, saprolegniosis can account for at least 10% of the annual economic loss in salmonids. In this study, we investigated the main Saprolegnia species involved in saprolegniosis of salmonids in Chile, and their association with specific developmental stages of the host fish. For this purpose, we studied 244 isolates of Saprolegniaaffected Atlantic salmon (Salmo salar), rainbow trout (Oncorhynchus mykiss), and king salmon (Oncorhynchus tshawytscha) from the salmon farming regions, using a recently developed identification strategy based on molecular taxonomical operational units. We found that the Saprolegnia species associated with diseased salmon were Saprolegnia australis, Saprolegnia delica, Saprolegnia diclina, Saprolegnia ferax, Saprolegnia parasitica and two new Saprolegnia species observed during this study. In order to determine whether there were any specific species associationswith different stages in the fish life cycle, we appliedmosaic plots and correspondence analyses for categorical data. These analyses showed a strong association of S. parasitica with samples fromthe adult stage of the fish (χ2 = 196.29, p b 0.0001), while the species S. australis, S. diclina and Saprolegnia sp. 2 were strongly associated with embryonic stages (eggs or alevins) (χ2 = 196.29, p b 0.0001). This work represents the first detailed molecular characterization of Saprolegnia species involved in saprolegniosis in Chile, and the first study showing specific association of different Saprolegnia species with different stages in the salmonid life cycle. | URI: | http://hdl.handle.net/10261/164431 | DOI: | 10.1016/j.aquaculture.2014.09.005 | Identificadores: | doi: 10.1016/j.aquaculture.2014.09.005 issn: 0044-8486 |
Aparece en las colecciones: | (RJB) Artículos (CAB) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Saprolegnia species.pdf | 902,93 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
32
checked on 21-abr-2024
WEB OF SCIENCETM
Citations
27
checked on 27-feb-2024
Page view(s)
317
checked on 24-abr-2024
Download(s)
1.387
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.