Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers
Over the 6 years 1980–85, 212 Norwegian rivers have been examined for occurrence of Gyrodactylus salaris: it was found in 26 rivers and six salmon hatcheries scattered throughout the country from Troms county in the north to Sogn og Fjordane in western Norway. The distribution of G. salaris is conne...
Published in: | Journal of Fish Biology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1986
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1986.tb04941.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb04941.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb04941.x |
id |
crwiley:10.1111/j.1095-8649.1986.tb04941.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1095-8649.1986.tb04941.x 2024-10-13T14:06:06+00:00 Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers Johnsen, B. O. Jensen, A. J. 1986 http://dx.doi.org/10.1111/j.1095-8649.1986.tb04941.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb04941.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb04941.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 29, issue 2, page 233-241 ISSN 0022-1112 1095-8649 journal-article 1986 crwiley https://doi.org/10.1111/j.1095-8649.1986.tb04941.x 2024-09-19T04:19:09Z Over the 6 years 1980–85, 212 Norwegian rivers have been examined for occurrence of Gyrodactylus salaris: it was found in 26 rivers and six salmon hatcheries scattered throughout the country from Troms county in the north to Sogn og Fjordane in western Norway. The distribution of G. salaris is connected with the stocking of fish from infected salmon hatcheries. The populations of salmon parr have been drastically reduced in the infected rivers. In later years catches of ascending salmon in these rivers have also sharply declined: in 1984 salmon fishery losses were estimated at 250–500 t. Gyrodactylus salaris is most probably a recent introduction to Norwegian rivers. A primary aim is to exterminate this parasite from all infected rivers and hatcheries: so far this has been accomplished in one river and one hatchery. Article in Journal/Newspaper Atlantic salmon Salmo salar Troms Wiley Online Library Norway Sogn ENVELOPE(-21.133,-21.133,63.994,63.994) Journal of Fish Biology 29 2 233 241 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Over the 6 years 1980–85, 212 Norwegian rivers have been examined for occurrence of Gyrodactylus salaris: it was found in 26 rivers and six salmon hatcheries scattered throughout the country from Troms county in the north to Sogn og Fjordane in western Norway. The distribution of G. salaris is connected with the stocking of fish from infected salmon hatcheries. The populations of salmon parr have been drastically reduced in the infected rivers. In later years catches of ascending salmon in these rivers have also sharply declined: in 1984 salmon fishery losses were estimated at 250–500 t. Gyrodactylus salaris is most probably a recent introduction to Norwegian rivers. A primary aim is to exterminate this parasite from all infected rivers and hatcheries: so far this has been accomplished in one river and one hatchery. |
format |
Article in Journal/Newspaper |
author |
Johnsen, B. O. Jensen, A. J. |
spellingShingle |
Johnsen, B. O. Jensen, A. J. Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers |
author_facet |
Johnsen, B. O. Jensen, A. J. |
author_sort |
Johnsen, B. O. |
title |
Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers |
title_short |
Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers |
title_full |
Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers |
title_fullStr |
Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers |
title_full_unstemmed |
Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers |
title_sort |
infestations of atlantic salmon, salmo salar, by gyrodactylus salaris in norwegian rivers |
publisher |
Wiley |
publishDate |
1986 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1986.tb04941.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb04941.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb04941.x |
long_lat |
ENVELOPE(-21.133,-21.133,63.994,63.994) |
geographic |
Norway Sogn |
geographic_facet |
Norway Sogn |
genre |
Atlantic salmon Salmo salar Troms |
genre_facet |
Atlantic salmon Salmo salar Troms |
op_source |
Journal of Fish Biology volume 29, issue 2, page 233-241 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1986.tb04941.x |
container_title |
Journal of Fish Biology |
container_volume |
29 |
container_issue |
2 |
container_start_page |
233 |
op_container_end_page |
241 |
_version_ |
1812812153487360000 |