Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture
Abstract The sea louse Caligus elongatus utilizes a range of marine fish species as hosts, and it has been suggested that fish farms are infected with adult C. elongatus from wild fish hosts. We assessed experimentally whether dislodged lice return to their original host species. Adult lice from wil...
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crwiley:10.1111/j.1365-2761.2006.00702.x 2024-06-02T08:03:09+00:00 Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture Øines, Ø Simonsen, J H Knutsen, J A Heuch, P A 2006 http://dx.doi.org/10.1111/j.1365-2761.2006.00702.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.2006.00702.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.2006.00702.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 29, issue 3, page 167-174 ISSN 0140-7775 1365-2761 journal-article 2006 crwiley https://doi.org/10.1111/j.1365-2761.2006.00702.x 2024-05-03T12:06:22Z Abstract The sea louse Caligus elongatus utilizes a range of marine fish species as hosts, and it has been suggested that fish farms are infected with adult C. elongatus from wild fish hosts. We assessed experimentally whether dislodged lice return to their original host species. Adult lice from wild lumpfish and saithe were presented to lumpfish, sea trout, Atlantic cod, saithe and European plaice. All fish species became infected. Lumpfish and cod were strongly preferred, followed by saithe, trout and plaice. Lice from wild saithe showed a preference for saithe and lumpfish, followed by cod, sea trout and plaice. The mtCO1 gene was used to determine the genotypes of the lice. Lice from lumpfish were genotype 1. Lice from saithe were mainly genotype 2. The two genotypes of C. elongatus differed slightly in their host preferences: lice from saithe were less discriminating. The data support the hypothesis that adult C. elongatus may transfer between different host species. Cod is an attractive host for lice from both lumpfish and saithe, which suggests that C. elongatus may become a serious pest of farmed cod. Article in Journal/Newspaper atlantic cod Wiley Online Library Journal of Fish Diseases 29 3 167 174 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The sea louse Caligus elongatus utilizes a range of marine fish species as hosts, and it has been suggested that fish farms are infected with adult C. elongatus from wild fish hosts. We assessed experimentally whether dislodged lice return to their original host species. Adult lice from wild lumpfish and saithe were presented to lumpfish, sea trout, Atlantic cod, saithe and European plaice. All fish species became infected. Lumpfish and cod were strongly preferred, followed by saithe, trout and plaice. Lice from wild saithe showed a preference for saithe and lumpfish, followed by cod, sea trout and plaice. The mtCO1 gene was used to determine the genotypes of the lice. Lice from lumpfish were genotype 1. Lice from saithe were mainly genotype 2. The two genotypes of C. elongatus differed slightly in their host preferences: lice from saithe were less discriminating. The data support the hypothesis that adult C. elongatus may transfer between different host species. Cod is an attractive host for lice from both lumpfish and saithe, which suggests that C. elongatus may become a serious pest of farmed cod. |
format |
Article in Journal/Newspaper |
author |
Øines, Ø Simonsen, J H Knutsen, J A Heuch, P A |
spellingShingle |
Øines, Ø Simonsen, J H Knutsen, J A Heuch, P A Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture |
author_facet |
Øines, Ø Simonsen, J H Knutsen, J A Heuch, P A |
author_sort |
Øines, Ø |
title |
Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture |
title_short |
Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture |
title_full |
Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture |
title_fullStr |
Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture |
title_full_unstemmed |
Host preference of adult Caligus elongatus Nordmann in the laboratory and its implications for Atlantic cod aquaculture |
title_sort |
host preference of adult caligus elongatus nordmann in the laboratory and its implications for atlantic cod aquaculture |
publisher |
Wiley |
publishDate |
2006 |
url |
http://dx.doi.org/10.1111/j.1365-2761.2006.00702.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.2006.00702.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.2006.00702.x |
genre |
atlantic cod |
genre_facet |
atlantic cod |
op_source |
Journal of Fish Diseases volume 29, issue 3, page 167-174 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2761.2006.00702.x |
container_title |
Journal of Fish Diseases |
container_volume |
29 |
container_issue |
3 |
container_start_page |
167 |
op_container_end_page |
174 |
_version_ |
1800747619022012416 |