Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland
Renibacterium salmoninarum (Rs) is common in wild Arctic charr Salvelinus alpinus and brown trout Salmo trutta in Iceland. Of 22 charr and nine trout populations none were free of Rs antigens. In two charr populations only one fish exceeded the Rs antigen detection limit and in one of these cases th...
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crwiley:10.1111/j.1095-8649.1998.tb00984.x 2024-09-15T17:52:21+00:00 Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland Jónsdóttir, H. Malmquist, H. J. Snorrason, S. S. Gudbergsson, G. Gudmundsdóttir, S. 1998 http://dx.doi.org/10.1111/j.1095-8649.1998.tb00984.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1998.tb00984.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1998.tb00984.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 53, issue 2, page 322-339 ISSN 0022-1112 1095-8649 journal-article 1998 crwiley https://doi.org/10.1111/j.1095-8649.1998.tb00984.x 2024-07-09T04:15:12Z Renibacterium salmoninarum (Rs) is common in wild Arctic charr Salvelinus alpinus and brown trout Salmo trutta in Iceland. Of 22 charr and nine trout populations none were free of Rs antigens. In two charr populations only one fish exceeded the Rs antigen detection limit and in one of these cases the ELISA value was within uncertainty limits of the infection criterion. Mean prevalence of infection was 46% for Arctic charr (range: 3–100%) and 35% for brown trout (range: 6–81%). No infected fish showed gross pathological signs of bacterial kidney disease (BKD). The ubiquity and high prevalences of infection indicated that the bacterium has been endemic for a long time, and is probably a normal, low density resident in the fish. A lack of correlation in mean intensity of Rs antigen and prevalence of infection between sympatricpopulations of Arctic charr and brown trout suggests that the dynamics of infection and internal proliferation of bacteria can be quite independent in the two species even if they live in the same lake. Rs intensity and its coefficient of variation decreased with age in older fish, suggesting a connection between Rs intensity and host mortality. However, this can be caused by other ecological factors that decrease survival, especially low food availability, which simultaneously increase the susceptibility to Rs infection and internal proliferation. Article in Journal/Newspaper Arctic charr Iceland Salvelinus alpinus Wiley Online Library Journal of Fish Biology 53 2 322 339 |
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English |
description |
Renibacterium salmoninarum (Rs) is common in wild Arctic charr Salvelinus alpinus and brown trout Salmo trutta in Iceland. Of 22 charr and nine trout populations none were free of Rs antigens. In two charr populations only one fish exceeded the Rs antigen detection limit and in one of these cases the ELISA value was within uncertainty limits of the infection criterion. Mean prevalence of infection was 46% for Arctic charr (range: 3–100%) and 35% for brown trout (range: 6–81%). No infected fish showed gross pathological signs of bacterial kidney disease (BKD). The ubiquity and high prevalences of infection indicated that the bacterium has been endemic for a long time, and is probably a normal, low density resident in the fish. A lack of correlation in mean intensity of Rs antigen and prevalence of infection between sympatricpopulations of Arctic charr and brown trout suggests that the dynamics of infection and internal proliferation of bacteria can be quite independent in the two species even if they live in the same lake. Rs intensity and its coefficient of variation decreased with age in older fish, suggesting a connection between Rs intensity and host mortality. However, this can be caused by other ecological factors that decrease survival, especially low food availability, which simultaneously increase the susceptibility to Rs infection and internal proliferation. |
format |
Article in Journal/Newspaper |
author |
Jónsdóttir, H. Malmquist, H. J. Snorrason, S. S. Gudbergsson, G. Gudmundsdóttir, S. |
spellingShingle |
Jónsdóttir, H. Malmquist, H. J. Snorrason, S. S. Gudbergsson, G. Gudmundsdóttir, S. Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland |
author_facet |
Jónsdóttir, H. Malmquist, H. J. Snorrason, S. S. Gudbergsson, G. Gudmundsdóttir, S. |
author_sort |
Jónsdóttir, H. |
title |
Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland |
title_short |
Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland |
title_full |
Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland |
title_fullStr |
Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland |
title_full_unstemmed |
Epidemiology of Renibacterium salmoninarum in wild Arctic charr and brown trout in Iceland |
title_sort |
epidemiology of renibacterium salmoninarum in wild arctic charr and brown trout in iceland |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1998.tb00984.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1998.tb00984.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1998.tb00984.x |
genre |
Arctic charr Iceland Salvelinus alpinus |
genre_facet |
Arctic charr Iceland Salvelinus alpinus |
op_source |
Journal of Fish Biology volume 53, issue 2, page 322-339 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1998.tb00984.x |
container_title |
Journal of Fish Biology |
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53 |
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2 |
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322 |
op_container_end_page |
339 |
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1810294396564799488 |