Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts
For wild, sea-run brown trout (Salmo trutta) smolts, the physiological consequences of abrupt transfer to seawater and simultaneous challenge with copepodid larvae of the sea louse, Lepeophtheirus salmonis (Kroyer, 1837), were investigated in the laboratory. Analysis of osmoregulatory, metabolic, an...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2006
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/physiological-effects-of-simultaneous-abrupt-seawater-entry-and-sea-lice-lepeophtheirus-salmonis-infestation-of-wild-searun-brown-trout-salmo-trutta-smolts(b0b6f46b-0560-405a-b0c9-0c21ed9f5e6f).html https://doi.org/10.1139/F06-160 http://www.scopus.com/inward/record.url?scp=33947181338&partnerID=8YFLogxK |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/b0b6f46b-0560-405a-b0c9-0c21ed9f5e6f 2024-09-15T17:56:26+00:00 Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts Wells, Alan Grierson, Christal E MacKenzie, Monique Lea Russon, Iain J Reinardy, Helena Middlemiss, Claire Bjorn, Pal A Finstad, Bengt Wendelaar Bonga, Sjoerd E Todd, Christopher David Hazon, Neil 2006-12 https://research-portal.st-andrews.ac.uk/en/researchoutput/physiological-effects-of-simultaneous-abrupt-seawater-entry-and-sea-lice-lepeophtheirus-salmonis-infestation-of-wild-searun-brown-trout-salmo-trutta-smolts(b0b6f46b-0560-405a-b0c9-0c21ed9f5e6f).html https://doi.org/10.1139/F06-160 http://www.scopus.com/inward/record.url?scp=33947181338&partnerID=8YFLogxK eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/physiological-effects-of-simultaneous-abrupt-seawater-entry-and-sea-lice-lepeophtheirus-salmonis-infestation-of-wild-searun-brown-trout-salmo-trutta-smolts(b0b6f46b-0560-405a-b0c9-0c21ed9f5e6f).html info:eu-repo/semantics/restrictedAccess Wells , A , Grierson , C E , MacKenzie , M L , Russon , I J , Reinardy , H , Middlemiss , C , Bjorn , P A , Finstad , B , Wendelaar Bonga , S E , Todd , C D & Hazon , N 2006 , ' Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 63 , no. 12 , pp. 2809-2821 . https://doi.org/10.1139/F06-160 ATLANTIC SALMON SALAR L TRANSPORT STRESS WESTERN SCOTLAND POST-SMOLTS LOUSE REGRESSION INFECTION GROWTH SELECTION article 2006 ftunstandrewcris https://doi.org/10.1139/F06-160 2024-07-03T23:33:43Z For wild, sea-run brown trout (Salmo trutta) smolts, the physiological consequences of abrupt transfer to seawater and simultaneous challenge with copepodid larvae of the sea louse, Lepeophtheirus salmonis (Kroyer, 1837), were investigated in the laboratory. Analysis of osmoregulatory, metabolic, and stress markers allowed the derivation of a sublethal threshold burden of L. salmonis, above which the host suffers major physiological stress. Noticeable lice effects, consistent across all measured markers, were not observed until L. salmonis developed to the mobile preadult and adult stages. Preadult L. salmonis caused significant increases in plasma chloride, osmolality, glucose, lactate, and cortisol and a significant reduction in haematocrit. Piecewise linear statistical approaches allowed the determination of abrupt changes in these physiological markers, attributable to the intensity of L. salmonis infestation on individual fish, and identification of overall threshold lice burdens. Thirteen mobile lice·fish -1 (weight range 19-70 g) was a consistent breakpoint across several physiological measures. This information will provide a valuable, objectively derived tool to aid in the formulation of effective wild fisheries management policy concerning S. trutta conservation. Article in Journal/Newspaper Atlantic salmon University of St Andrews: Research Portal Canadian Journal of Fisheries and Aquatic Sciences 63 12 2809 2821 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
ATLANTIC SALMON SALAR L TRANSPORT STRESS WESTERN SCOTLAND POST-SMOLTS LOUSE REGRESSION INFECTION GROWTH SELECTION |
spellingShingle |
ATLANTIC SALMON SALAR L TRANSPORT STRESS WESTERN SCOTLAND POST-SMOLTS LOUSE REGRESSION INFECTION GROWTH SELECTION Wells, Alan Grierson, Christal E MacKenzie, Monique Lea Russon, Iain J Reinardy, Helena Middlemiss, Claire Bjorn, Pal A Finstad, Bengt Wendelaar Bonga, Sjoerd E Todd, Christopher David Hazon, Neil Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts |
topic_facet |
ATLANTIC SALMON SALAR L TRANSPORT STRESS WESTERN SCOTLAND POST-SMOLTS LOUSE REGRESSION INFECTION GROWTH SELECTION |
description |
For wild, sea-run brown trout (Salmo trutta) smolts, the physiological consequences of abrupt transfer to seawater and simultaneous challenge with copepodid larvae of the sea louse, Lepeophtheirus salmonis (Kroyer, 1837), were investigated in the laboratory. Analysis of osmoregulatory, metabolic, and stress markers allowed the derivation of a sublethal threshold burden of L. salmonis, above which the host suffers major physiological stress. Noticeable lice effects, consistent across all measured markers, were not observed until L. salmonis developed to the mobile preadult and adult stages. Preadult L. salmonis caused significant increases in plasma chloride, osmolality, glucose, lactate, and cortisol and a significant reduction in haematocrit. Piecewise linear statistical approaches allowed the determination of abrupt changes in these physiological markers, attributable to the intensity of L. salmonis infestation on individual fish, and identification of overall threshold lice burdens. Thirteen mobile lice·fish -1 (weight range 19-70 g) was a consistent breakpoint across several physiological measures. This information will provide a valuable, objectively derived tool to aid in the formulation of effective wild fisheries management policy concerning S. trutta conservation. |
format |
Article in Journal/Newspaper |
author |
Wells, Alan Grierson, Christal E MacKenzie, Monique Lea Russon, Iain J Reinardy, Helena Middlemiss, Claire Bjorn, Pal A Finstad, Bengt Wendelaar Bonga, Sjoerd E Todd, Christopher David Hazon, Neil |
author_facet |
Wells, Alan Grierson, Christal E MacKenzie, Monique Lea Russon, Iain J Reinardy, Helena Middlemiss, Claire Bjorn, Pal A Finstad, Bengt Wendelaar Bonga, Sjoerd E Todd, Christopher David Hazon, Neil |
author_sort |
Wells, Alan |
title |
Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts |
title_short |
Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts |
title_full |
Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts |
title_fullStr |
Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts |
title_full_unstemmed |
Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts |
title_sort |
physiological effects of simultaneous, abrupt seawater entry and sea lice ( lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( salmo trutta ) smolts |
publishDate |
2006 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/physiological-effects-of-simultaneous-abrupt-seawater-entry-and-sea-lice-lepeophtheirus-salmonis-infestation-of-wild-searun-brown-trout-salmo-trutta-smolts(b0b6f46b-0560-405a-b0c9-0c21ed9f5e6f).html https://doi.org/10.1139/F06-160 http://www.scopus.com/inward/record.url?scp=33947181338&partnerID=8YFLogxK |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Wells , A , Grierson , C E , MacKenzie , M L , Russon , I J , Reinardy , H , Middlemiss , C , Bjorn , P A , Finstad , B , Wendelaar Bonga , S E , Todd , C D & Hazon , N 2006 , ' Physiological effects of simultaneous, abrupt seawater entry and sea lice ( Lepeophtheirus salmonis ) infestation of wild, sea-run brown trout ( Salmo trutta ) smolts ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 63 , no. 12 , pp. 2809-2821 . https://doi.org/10.1139/F06-160 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/physiological-effects-of-simultaneous-abrupt-seawater-entry-and-sea-lice-lepeophtheirus-salmonis-infestation-of-wild-searun-brown-trout-salmo-trutta-smolts(b0b6f46b-0560-405a-b0c9-0c21ed9f5e6f).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1139/F06-160 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
63 |
container_issue |
12 |
container_start_page |
2809 |
op_container_end_page |
2821 |
_version_ |
1810432632094195712 |