Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957
The susceptibility and resistance of hatchery‐reared salmon parr, native to the rivers Neva (U.S.S.R. Baltic Sea), Alta (northern Norway) and Lone (western Norway) (both eastern Atlantic Ocean), to Gyrodactylus salaris from Norway, was examined. The level of resistance to the parasite was assessed f...
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crwiley:10.1111/j.1095-8649.1990.tb05890.x 2024-06-02T08:03:41+00:00 Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957 Bakke, T. A. Jansen, P. A. Hansen, L. P. 1990 http://dx.doi.org/10.1111/j.1095-8649.1990.tb05890.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1990.tb05890.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1990.tb05890.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 37, issue 4, page 577-587 ISSN 0022-1112 1095-8649 journal-article 1990 crwiley https://doi.org/10.1111/j.1095-8649.1990.tb05890.x 2024-05-03T11:11:09Z The susceptibility and resistance of hatchery‐reared salmon parr, native to the rivers Neva (U.S.S.R. Baltic Sea), Alta (northern Norway) and Lone (western Norway) (both eastern Atlantic Ocean), to Gyrodactylus salaris from Norway, was examined. The level of resistance to the parasite was assessed from counts, made on anaesthetized salmon, ofthe numbers of G. salaris after an initial experimental exposure (2 weeks) to G. salaris‐infected salmon. Three experiments, all in water at c. 12° C, were carried out: (1) 50 Alta and 50 Neva salmon, initial mean parasite intensity c. 12; (2) 50 Lone and 50 Neva salmon, initial mean parasite intensity c. 60; (3) 10 Lone and 10 Neva salmon individually isolated, initial intensity one gravid G. salaris . In both the Norwegian salmon stocks, the G. salaris infrapopulations steadily increased during the experimental period of 5 weeks, in contrast to a prominent decline in the Neva salmon stock, after, respectively: (Exp. 1) week 3, average peak intensity 32.6; (Exp. 2) week 2, average peak intensity 58.7; and (Exp. 3) week 3, average peak intensity 6.3. The hatchery‐reared Baltic Neva stock demonstrated both an innate and an acquired resistance towards G. salaris , in contrast to the highly susceptible, Norwegian Alta and Lone salmon stocks. Article in Journal/Newspaper Atlantic salmon Northern Norway Salmo salar Wiley Online Library Alta Lone ENVELOPE(11.982,11.982,65.105,65.105) Neva ENVELOPE(15.407,15.407,68.061,68.061) Norway Journal of Fish Biology 37 4 577 587 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The susceptibility and resistance of hatchery‐reared salmon parr, native to the rivers Neva (U.S.S.R. Baltic Sea), Alta (northern Norway) and Lone (western Norway) (both eastern Atlantic Ocean), to Gyrodactylus salaris from Norway, was examined. The level of resistance to the parasite was assessed from counts, made on anaesthetized salmon, ofthe numbers of G. salaris after an initial experimental exposure (2 weeks) to G. salaris‐infected salmon. Three experiments, all in water at c. 12° C, were carried out: (1) 50 Alta and 50 Neva salmon, initial mean parasite intensity c. 12; (2) 50 Lone and 50 Neva salmon, initial mean parasite intensity c. 60; (3) 10 Lone and 10 Neva salmon individually isolated, initial intensity one gravid G. salaris . In both the Norwegian salmon stocks, the G. salaris infrapopulations steadily increased during the experimental period of 5 weeks, in contrast to a prominent decline in the Neva salmon stock, after, respectively: (Exp. 1) week 3, average peak intensity 32.6; (Exp. 2) week 2, average peak intensity 58.7; and (Exp. 3) week 3, average peak intensity 6.3. The hatchery‐reared Baltic Neva stock demonstrated both an innate and an acquired resistance towards G. salaris , in contrast to the highly susceptible, Norwegian Alta and Lone salmon stocks. |
format |
Article in Journal/Newspaper |
author |
Bakke, T. A. Jansen, P. A. Hansen, L. P. |
spellingShingle |
Bakke, T. A. Jansen, P. A. Hansen, L. P. Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957 |
author_facet |
Bakke, T. A. Jansen, P. A. Hansen, L. P. |
author_sort |
Bakke, T. A. |
title |
Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957 |
title_short |
Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957 |
title_full |
Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957 |
title_fullStr |
Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957 |
title_full_unstemmed |
Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylussalaris Malmberg, 1957 |
title_sort |
differences in the host resistance of atlantic salmon, salmo salar l., stocks to the monogenean gyrodactylussalaris malmberg, 1957 |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1990.tb05890.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1990.tb05890.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1990.tb05890.x |
long_lat |
ENVELOPE(11.982,11.982,65.105,65.105) ENVELOPE(15.407,15.407,68.061,68.061) |
geographic |
Alta Lone Neva Norway |
geographic_facet |
Alta Lone Neva Norway |
genre |
Atlantic salmon Northern Norway Salmo salar |
genre_facet |
Atlantic salmon Northern Norway Salmo salar |
op_source |
Journal of Fish Biology volume 37, issue 4, page 577-587 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1990.tb05890.x |
container_title |
Journal of Fish Biology |
container_volume |
37 |
container_issue |
4 |
container_start_page |
577 |
op_container_end_page |
587 |
_version_ |
1800748275478822912 |