| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Determination of risk factors for herpesvirus outbreak in oysters using a broad-scale spatial epidemiology framework
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| Autores: |
Pernet, Fabrice
Fuhrmann, Marine
Petton, Bruno
Mazurie, Joseph
Bouget, Jean-francois
Fleury, Elodie
Daigle, Gaetan
Gernez, Pierre
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| Data: |
2018-07
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| Ano: |
2018
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| Resumo: |
Marine diseases have major impacts on ecosystems and economic consequences for aquaculture and fisheries. Understanding origin, spread and risk factors of disease is crucial for management, but data in the ocean are limited compared to the terrestrial environment. Here we investigated how the marine environment drives the spread of viral disease outbreak affecting The Pacific oyster worldwide by using a spatial epidemiology framework. We collected environmental and oyster health data at 46 sites spread over an area of 300 km2 along an inshore-offshore gradient during an epizootic event and conducted risk analysis. We found that disease broke out in the intertidal farming area and spread seaward. Mortalities and virus detection were observed in oysters placed 2 km from the farming areas, but oysters of almost all sites were subclinically infected. Increasing food quantity and quality, growth rate and energy reserves of oyster were associated with a lower risk of mortality offshore whereas increasing turbidity, a proxy of the concentration of suspended particulate matter, and terrestrial inputs, inferred from fatty acid composition of oysters, were associated with a higher risk of mortality. Offshore farming and maintenance of good ecological status of coastal waters are options to limit disease risk in oysters.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00450/56130/57670.pdf
https://archimer.ifremer.fr/doc/00450/56130/57671.pdf
DOI:10.1038/s41598-018-29238-4
https://archimer.ifremer.fr/doc/00450/56130/
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| Editor: |
Nature Publishing Group
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| Formato: |
application/pdf
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| Fonte: |
Scientific Reports (2045-2322) (Nature Publishing Group), 2018-07 , Vol. 8 , N. 1 , P. 10869 (11p.)
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| Direitos: |
The Author(s) 2018. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included ...
info:eu-repo/semantics/openAccess
restricted use
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