Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida
Abstract A bacteria–parasite challenge model was used to study the role of sea lice, Lepeophtheirus salmonis (Copepoda), as a vector of Aeromonas salmonicida subsp. salmonicida . Three hypotheses were tested: (i) L. salmonis can acquire A. salmonicida subsp. salmonicida via water bath exposure; (ii)...
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crwiley:10.1111/jfd.12449 2023-12-03T10:19:33+01:00 Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida Novak, C W Lewis, D L Collicutt, B Verkaik, K Barker, D E Natural Sciences and Engineering Research Council of Canada 2016 http://dx.doi.org/10.1111/jfd.12449 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12449 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12449 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 39, issue 10, page 1165-1178 ISSN 0140-7775 1365-2761 Veterinary (miscellaneous) Aquatic Science journal-article 2016 crwiley https://doi.org/10.1111/jfd.12449 2023-11-09T14:13:27Z Abstract A bacteria–parasite challenge model was used to study the role of sea lice, Lepeophtheirus salmonis (Copepoda), as a vector of Aeromonas salmonicida subsp. salmonicida . Three hypotheses were tested: (i) L. salmonis can acquire A. salmonicida subsp. salmonicida via water bath exposure; (ii) L. salmonis can acquire the bacteria via parasitizing infected Atlantic salmon, Salmo salar and (iii) L. salmonis can transmit the bacteria to naïve Atlantic salmon via parasitism. Adult L. salmonis exposed to varying A. salmonicida subsp. salmonicida suspensions (10 1 –10 7 cells mL −1 ) for 1.0, 3.0 or 6.0 h acquired the bacteria externally (12.5–100%) and internally (10.0–100%), with higher prevalences associated with the highest concentrations and exposures. After exposure to 10 7 cells mL −1 , viable A. salmonicida subsp. salmonicida could be isolated from the external carapace of L. salmonis for 120 h. Lepeophtheirus salmonis also acquired the bacteria externally and internally from parasitizing infected fish. Bacterial transmission was observed only when L. salmonis had acquired the pathogen internally via feeding on ‘donor fish’ and then by parasitizing smaller (<50 g) ‘naive’ fish. Under specific experimental conditions, L. salmonis can transfer A. salmonicida subsp. salmonicida via parasitism; however, its role as a mechanical or biological vector was not defined. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library (via Crossref) Journal of Fish Diseases 39 10 1165 1178 |
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Open Polar |
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Wiley Online Library (via Crossref) |
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crwiley |
language |
English |
topic |
Veterinary (miscellaneous) Aquatic Science |
spellingShingle |
Veterinary (miscellaneous) Aquatic Science Novak, C W Lewis, D L Collicutt, B Verkaik, K Barker, D E Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida |
topic_facet |
Veterinary (miscellaneous) Aquatic Science |
description |
Abstract A bacteria–parasite challenge model was used to study the role of sea lice, Lepeophtheirus salmonis (Copepoda), as a vector of Aeromonas salmonicida subsp. salmonicida . Three hypotheses were tested: (i) L. salmonis can acquire A. salmonicida subsp. salmonicida via water bath exposure; (ii) L. salmonis can acquire the bacteria via parasitizing infected Atlantic salmon, Salmo salar and (iii) L. salmonis can transmit the bacteria to naïve Atlantic salmon via parasitism. Adult L. salmonis exposed to varying A. salmonicida subsp. salmonicida suspensions (10 1 –10 7 cells mL −1 ) for 1.0, 3.0 or 6.0 h acquired the bacteria externally (12.5–100%) and internally (10.0–100%), with higher prevalences associated with the highest concentrations and exposures. After exposure to 10 7 cells mL −1 , viable A. salmonicida subsp. salmonicida could be isolated from the external carapace of L. salmonis for 120 h. Lepeophtheirus salmonis also acquired the bacteria externally and internally from parasitizing infected fish. Bacterial transmission was observed only when L. salmonis had acquired the pathogen internally via feeding on ‘donor fish’ and then by parasitizing smaller (<50 g) ‘naive’ fish. Under specific experimental conditions, L. salmonis can transfer A. salmonicida subsp. salmonicida via parasitism; however, its role as a mechanical or biological vector was not defined. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Novak, C W Lewis, D L Collicutt, B Verkaik, K Barker, D E |
author_facet |
Novak, C W Lewis, D L Collicutt, B Verkaik, K Barker, D E |
author_sort |
Novak, C W |
title |
Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida |
title_short |
Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida |
title_full |
Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida |
title_fullStr |
Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida |
title_full_unstemmed |
Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida |
title_sort |
investigations on the role of the salmon louse, lepeophtheirus salmonis (caligidae), as a vector in the transmission of aeromonas salmonicida subsp. salmonicida |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/jfd.12449 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12449 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12449 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Diseases volume 39, issue 10, page 1165-1178 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfd.12449 |
container_title |
Journal of Fish Diseases |
container_volume |
39 |
container_issue |
10 |
container_start_page |
1165 |
op_container_end_page |
1178 |
_version_ |
1784266864096968704 |