The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland
Although Caligus elongatus is one of two major species of sea lice that parasitize farmed salmon, its epidemiology has not been extensively studied. In this communication, the abundances of the adult stage of C. elongatus in salmon populations from 33 farms in the West of Scotland between 1997 and 2...
Published in: | Journal of Fish Diseases |
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Language: | English |
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2002
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crwiley:10.1046/j.1365-2761.2002.00388.x 2024-06-02T08:03:40+00:00 The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland Revie, C W Gettinby, G Treasurer, J W Rae, G H 2002 http://dx.doi.org/10.1046/j.1365-2761.2002.00388.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2761.2002.00388.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2761.2002.00388.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 25, issue 7, page 391-399 ISSN 0140-7775 1365-2761 journal-article 2002 crwiley https://doi.org/10.1046/j.1365-2761.2002.00388.x 2024-05-03T11:32:04Z Although Caligus elongatus is one of two major species of sea lice that parasitize farmed salmon, its epidemiology has not been extensively studied. In this communication, the abundances of the adult stage of C. elongatus in salmon populations from 33 farms in the West of Scotland between 1997 and 2000 have been analysed for evidence of seasonal and annual patterns. The findings indicate that the pattern of C. elongatus is remarkably consistent from year to year, and directly opposed to that reported for Lepeophtheirus salmonis, the other major caligid species. In particular, adult infestations rapidly increase from the start of July each year, and are more prevalent on salmon in the first year of production than the second year. Treatment is seen to have an effect on levels of infestation but it is not clear why this species should have significantly lower levels of abundance in the second year of production. There is also evidence that fallowing has no effect on abundance. Strategic management programmes for the control of sea lice on salmon farms, which are increasingly effective in controlling L. salmonis , may also have to give greater consideration to C. elongatus . Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Diseases 25 7 391 399 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Although Caligus elongatus is one of two major species of sea lice that parasitize farmed salmon, its epidemiology has not been extensively studied. In this communication, the abundances of the adult stage of C. elongatus in salmon populations from 33 farms in the West of Scotland between 1997 and 2000 have been analysed for evidence of seasonal and annual patterns. The findings indicate that the pattern of C. elongatus is remarkably consistent from year to year, and directly opposed to that reported for Lepeophtheirus salmonis, the other major caligid species. In particular, adult infestations rapidly increase from the start of July each year, and are more prevalent on salmon in the first year of production than the second year. Treatment is seen to have an effect on levels of infestation but it is not clear why this species should have significantly lower levels of abundance in the second year of production. There is also evidence that fallowing has no effect on abundance. Strategic management programmes for the control of sea lice on salmon farms, which are increasingly effective in controlling L. salmonis , may also have to give greater consideration to C. elongatus . |
format |
Article in Journal/Newspaper |
author |
Revie, C W Gettinby, G Treasurer, J W Rae, G H |
spellingShingle |
Revie, C W Gettinby, G Treasurer, J W Rae, G H The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland |
author_facet |
Revie, C W Gettinby, G Treasurer, J W Rae, G H |
author_sort |
Revie, C W |
title |
The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland |
title_short |
The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland |
title_full |
The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland |
title_fullStr |
The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland |
title_full_unstemmed |
The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland |
title_sort |
epidemiology of the sea lice, caligus elongatus nordmann, in marine aquaculture of atlantic salmon, salmo salar l., in scotland |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1046/j.1365-2761.2002.00388.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2761.2002.00388.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2761.2002.00388.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Diseases volume 25, issue 7, page 391-399 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2761.2002.00388.x |
container_title |
Journal of Fish Diseases |
container_volume |
25 |
container_issue |
7 |
container_start_page |
391 |
op_container_end_page |
399 |
_version_ |
1800748270108016640 |