Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions
Abstract Tracking individual variation in the dynamics of parasite infections in wild populations is often complicated by lack of knowledge of the epidemiological history of hosts. Whereas the dynamics and development of G yrodactylus salaris M almberg, 1957, on A tlantic salmon, S almo salar L ., a...
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Online Access: | http://dx.doi.org/10.1111/jfd.12263 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12263 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12263 |
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crwiley:10.1111/jfd.12263 2024-06-23T07:51:24+00:00 Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions Hendrichsen, D K Kristoffersen, R Gjelland, K Ø Knudsen, R Kusterle, S Rikardsen, A H Henriksen, E H Smalås, A Olstad, K Norwegian Institute for Nature Research Research Council of Norway University of Tromsø Directorate for Nature Management 2014 http://dx.doi.org/10.1111/jfd.12263 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12263 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12263 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 38, issue 6, page 541-550 ISSN 0140-7775 1365-2761 journal-article 2014 crwiley https://doi.org/10.1111/jfd.12263 2024-05-31T08:14:21Z Abstract Tracking individual variation in the dynamics of parasite infections in wild populations is often complicated by lack of knowledge of the epidemiological history of hosts. Whereas the dynamics and development of G yrodactylus salaris M almberg, 1957, on A tlantic salmon, S almo salar L ., are known from laboratory studies, knowledge about infection development on individual wild fishes is currently sparse. In this study, the dynamics of an infection of G . salaris on individually marked A tlantic salmon parr was followed in a section of a natural stream. During the 6‐week experiment, the prevalence increased from 3.3 to 60.0%, with an average increase in intensity of 4.1% day −1 . Survival analyses showed an initially high probability (93.6%) of staying uninfected by G . salaris , decreasing significantly to 37% after 6 weeks. The results showed that even at subarctic water temperatures and with an initially low risk of infection, the parasite spread rapidly in the Atlantic salmon population, with the capacity to reach 100% prevalence within a short summer season. The study thus track individual infection trajectories of A tlantic salmon living under near‐natural conditions, providing an integration of key population parameters from controlled experiments with the dynamics of the epizootic observed in free‐living living populations. Article in Journal/Newspaper Atlantic salmon Subarctic Wiley Online Library Almberg ENVELOPE(9.133,9.133,63.050,63.050) Almo ENVELOPE(15.306,15.306,66.954,66.954) Journal of Fish Diseases 38 6 541 550 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Tracking individual variation in the dynamics of parasite infections in wild populations is often complicated by lack of knowledge of the epidemiological history of hosts. Whereas the dynamics and development of G yrodactylus salaris M almberg, 1957, on A tlantic salmon, S almo salar L ., are known from laboratory studies, knowledge about infection development on individual wild fishes is currently sparse. In this study, the dynamics of an infection of G . salaris on individually marked A tlantic salmon parr was followed in a section of a natural stream. During the 6‐week experiment, the prevalence increased from 3.3 to 60.0%, with an average increase in intensity of 4.1% day −1 . Survival analyses showed an initially high probability (93.6%) of staying uninfected by G . salaris , decreasing significantly to 37% after 6 weeks. The results showed that even at subarctic water temperatures and with an initially low risk of infection, the parasite spread rapidly in the Atlantic salmon population, with the capacity to reach 100% prevalence within a short summer season. The study thus track individual infection trajectories of A tlantic salmon living under near‐natural conditions, providing an integration of key population parameters from controlled experiments with the dynamics of the epizootic observed in free‐living living populations. |
author2 |
Norwegian Institute for Nature Research Research Council of Norway University of Tromsø Directorate for Nature Management |
format |
Article in Journal/Newspaper |
author |
Hendrichsen, D K Kristoffersen, R Gjelland, K Ø Knudsen, R Kusterle, S Rikardsen, A H Henriksen, E H Smalås, A Olstad, K |
spellingShingle |
Hendrichsen, D K Kristoffersen, R Gjelland, K Ø Knudsen, R Kusterle, S Rikardsen, A H Henriksen, E H Smalås, A Olstad, K Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions |
author_facet |
Hendrichsen, D K Kristoffersen, R Gjelland, K Ø Knudsen, R Kusterle, S Rikardsen, A H Henriksen, E H Smalås, A Olstad, K |
author_sort |
Hendrichsen, D K |
title |
Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions |
title_short |
Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions |
title_full |
Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions |
title_fullStr |
Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions |
title_full_unstemmed |
Transmission dynamics of the monogenean Gyrodactylus salarisunder seminatural conditions |
title_sort |
transmission dynamics of the monogenean gyrodactylus salarisunder seminatural conditions |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/jfd.12263 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12263 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12263 |
long_lat |
ENVELOPE(9.133,9.133,63.050,63.050) ENVELOPE(15.306,15.306,66.954,66.954) |
geographic |
Almberg Almo |
geographic_facet |
Almberg Almo |
genre |
Atlantic salmon Subarctic |
genre_facet |
Atlantic salmon Subarctic |
op_source |
Journal of Fish Diseases volume 38, issue 6, page 541-550 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfd.12263 |
container_title |
Journal of Fish Diseases |
container_volume |
38 |
container_issue |
6 |
container_start_page |
541 |
op_container_end_page |
550 |
_version_ |
1802642481911693312 |