Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes
The consequences of high (735 copepodids fish–1) and low (243 copepodids fish–1) level exposures of size-matched juvenile pink and chum salmon to Lepeophtheirus salmonis copepodids were examined. At both levels of exposure the prevalence and abundance of L. salmonis was significantly higher on chum...
Published in: | Diseases of Aquatic Organisms |
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Online Access: | https://doi.org/10.3354/dao075229 https://nrc-publications.canada.ca/eng/view/object/?id=03e100f5-4ff3-4f23-b79a-b2e6e7445b78 https://nrc-publications.canada.ca/fra/voir/objet/?id=03e100f5-4ff3-4f23-b79a-b2e6e7445b78 |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:3538116 2023-05-15T17:52:52+02:00 Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes Jones, Simon R. M. Fast, Mark D. Johnson, Stewart C. Groman, David B. 2007 text https://doi.org/10.3354/dao075229 https://nrc-publications.canada.ca/eng/view/object/?id=03e100f5-4ff3-4f23-b79a-b2e6e7445b78 https://nrc-publications.canada.ca/fra/voir/objet/?id=03e100f5-4ff3-4f23-b79a-b2e6e7445b78 eng eng Diseases of Aquatic Organisms, Volume: 75, Issue: 3, Publication date: 2007, Pages: 229–238 doi:10.3354/dao075229 © Inter-Research 2007 Oncorhynchus gorbuscha Oncorhynchus keta Lepeophtheirus salmonis sea lice immune response article 2007 ftnrccanada https://doi.org/10.3354/dao075229 2021-09-18T23:00:19Z The consequences of high (735 copepodids fish–1) and low (243 copepodids fish–1) level exposures of size-matched juvenile pink and chum salmon to Lepeophtheirus salmonis copepodids were examined. At both levels of exposure the prevalence and abundance of L. salmonis was significantly higher on chum salmon. In addition, the weight of exposed chum salmon following the high exposure was significantly less than that of unexposed chum salmon. At both exposures, the haematocrit of exposed chum salmon was significantly less than that of unexposed chum. Neither weight nor haematocrit of pink salmon was affected by exposures at these levels. Despite the presence of microscopic inflammatory lesions associated with attachment of L. salmonis on the epithelium of gill and fin of both salmon species, there were no mortalities following either exposure. A transient cortisol response was observed in chum salmon 21 d after low exposure. An earlier and quantitatively higher expression of the proinflammatory genes interleukin-8 (IL-8), tumour necrosis factor ?-1 (TNF?-1) and interleukin-1? (IL-1?) in fin and head kidney of pink salmon suggested a mechanism of more rapid louse rejection in this species. Together, these observations indicate a relatively enhanced innate resistance to L. salmonis in the juvenile pink salmon compared with the juvenile chum salmon. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon National Research Council Canada: NRC Publications Archive Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Diseases of Aquatic Organisms 75 229 238 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
Oncorhynchus gorbuscha Oncorhynchus keta Lepeophtheirus salmonis sea lice immune response |
spellingShingle |
Oncorhynchus gorbuscha Oncorhynchus keta Lepeophtheirus salmonis sea lice immune response Jones, Simon R. M. Fast, Mark D. Johnson, Stewart C. Groman, David B. Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes |
topic_facet |
Oncorhynchus gorbuscha Oncorhynchus keta Lepeophtheirus salmonis sea lice immune response |
description |
The consequences of high (735 copepodids fish–1) and low (243 copepodids fish–1) level exposures of size-matched juvenile pink and chum salmon to Lepeophtheirus salmonis copepodids were examined. At both levels of exposure the prevalence and abundance of L. salmonis was significantly higher on chum salmon. In addition, the weight of exposed chum salmon following the high exposure was significantly less than that of unexposed chum salmon. At both exposures, the haematocrit of exposed chum salmon was significantly less than that of unexposed chum. Neither weight nor haematocrit of pink salmon was affected by exposures at these levels. Despite the presence of microscopic inflammatory lesions associated with attachment of L. salmonis on the epithelium of gill and fin of both salmon species, there were no mortalities following either exposure. A transient cortisol response was observed in chum salmon 21 d after low exposure. An earlier and quantitatively higher expression of the proinflammatory genes interleukin-8 (IL-8), tumour necrosis factor ?-1 (TNF?-1) and interleukin-1? (IL-1?) in fin and head kidney of pink salmon suggested a mechanism of more rapid louse rejection in this species. Together, these observations indicate a relatively enhanced innate resistance to L. salmonis in the juvenile pink salmon compared with the juvenile chum salmon. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Jones, Simon R. M. Fast, Mark D. Johnson, Stewart C. Groman, David B. |
author_facet |
Jones, Simon R. M. Fast, Mark D. Johnson, Stewart C. Groman, David B. |
author_sort |
Jones, Simon R. M. |
title |
Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes |
title_short |
Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes |
title_full |
Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes |
title_fullStr |
Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes |
title_full_unstemmed |
Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes |
title_sort |
differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes |
publishDate |
2007 |
url |
https://doi.org/10.3354/dao075229 https://nrc-publications.canada.ca/eng/view/object/?id=03e100f5-4ff3-4f23-b79a-b2e6e7445b78 https://nrc-publications.canada.ca/fra/voir/objet/?id=03e100f5-4ff3-4f23-b79a-b2e6e7445b78 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
Keta |
geographic_facet |
Keta |
genre |
Oncorhynchus gorbuscha Pink salmon |
genre_facet |
Oncorhynchus gorbuscha Pink salmon |
op_relation |
Diseases of Aquatic Organisms, Volume: 75, Issue: 3, Publication date: 2007, Pages: 229–238 doi:10.3354/dao075229 |
op_rights |
© Inter-Research 2007 |
op_doi |
https://doi.org/10.3354/dao075229 |
container_title |
Diseases of Aquatic Organisms |
container_volume |
75 |
container_start_page |
229 |
op_container_end_page |
238 |
_version_ |
1766160616062451712 |