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DOI | 10.1016/J.PREVETMED.2013.03.015 | ||||
Año | 2013 | ||||
Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
The decline of fisheries over recent decades and a growing human population has coincided with an increase in aquaculture production. As farmed fish densities increase, so have their rates of infectious diseases, as predicted by the theory of density-dependent disease transmission. One of the pathogen that has increased with the growth of salmon farming is sea lice. Effective management of this pathogen requires an understanding of the spatial scale of transmission. We used a two-part multi-scale model to account for the zero-inflated data observed in weekly sea lice abundance levels on rainbow trout and Atlantic salmon farms in Chile, and to assess internal (farm) and external (regional) sources of sea lice infection. We observed that the level of juvenile sea lice was higher on farms that were closer to processing plants with fish holding facilities. Further, evidence for sea lice exposure from the surrounding area was supported by a strong positive correlation between the level of juvenile sea lice on a farm and the number of gravid females on neighboring farms within 30 km two weeks prior. The relationship between external sources of sea lice from neighboring farms and juvenile sea lice on a farm was one of the strongest detected in our multivariable model. Our findings suggest that the management of sea lice should be coordinated between farms and should include all farms and processing plants with holding facilities within a relatively large geographic area. Understanding the contribution of pathogens on a farm from different sources is an important step in developing effective control strategies. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
Ord. | Autor | Género | Institución - País |
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1 | Kristoffersen, A. B. | - |
Natl Vet Inst - Noruega
Univ Oslo - Noruega Veterinærinstituttet - Noruega Universitetet i Oslo - Noruega |
2 | Rees, Erin E. | Mujer |
Univ Prince Edward Isl - Canadá
University of Prince Edward Island Atlantic Veterinary College - Canadá |
3 | Stryhn, Henrik | Hombre |
Univ Prince Edward Isl - Canadá
University of Prince Edward Island Atlantic Veterinary College - Canadá |
4 | IBARRA-OLMEDO, ROLANDO ANTONIO | Hombre |
Instituto Tecnológico del Salmón (INTESAL) - Chile
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5 | Campisto, J. -L. | Hombre |
Instituto Tecnológico del Salmón (INTESAL) - Chile
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6 | Revie, Crawford W. | Hombre |
Univ Prince Edward Isl - Canadá
University of Prince Edward Island Atlantic Veterinary College - Canadá |
7 | St-Hilaire, Sophie | Mujer |
Univ Prince Edward Isl - Canadá
University of Prince Edward Island Atlantic Veterinary College - Canadá |
Fuente |
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CORFO Chile |
Canada Research Chairs |
University of Prince Edward Island |
Canada Excellence Research Chairs, Government of Canada |
Canada Excellence Research Chairs program at UPEI |
Agradecimiento |
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We would like to thank CORFO Chile and the Canada Excellence Research Chairs program at UPEI for assisting with the funding of this project. We would also like to thank William Chalmers for editing the article. |
We would like to thank CORFO Chile and the Canada Excellence Research Chairs program at UPEI for assisting with the funding of this project. We would also like to thank William Chalmers for editing the article. |